显示样式:     当前期刊: ACS Sustainable Chemistry & Engineering    加入关注       排序: 导出
我的关注
我的收藏
您暂时未登录!
登录
  • Functional Protein Concentrates Extracted from the Green Marine Macroalga Ulva sp., by High Voltage Pulsed Electric Fields and Mechanical Press
    ACS Sustainable Chem. Eng. (IF 6.14) Pub Date : 2018-10-17
    Arthur Robin, Meital Kazir, Martin Sack, Alvaro Israel, Wolfgang Frey, Georg Mueller, Yoav D. Livney, Alexander Golberg
    更新日期:2018-10-17
  • 更新日期:2018-10-17
  • A Pinch of Salt Improves n-Butanol Selectivity in the Guerbet Condensation of Ethanol over Cu-Doped Mg/Al Oxides
    ACS Sustainable Chem. Eng. (IF 6.14) Pub Date : 2018-10-17
    Jacob A. Barrett, Zachary R. Jones, Craig Stickelmaier, Nora Schopp, Peter C. Ford
    更新日期:2018-10-17
  • Regioselective Nitrative Cyclization of 1,6-Enynes with t-BuONO under Metal-Free Conditions
    ACS Sustainable Chem. Eng. (IF 6.14) Pub Date : 2018-10-17
    Wen-Ting Wei, Wei-Wei Ying, Wen-Hui Bao, Le-Han Gao, Xu-Dong Xu, Yi-Ning Wang, Xiao-Xiao Meng, Gan-Ping Chen, Qiang Li
    更新日期:2018-10-17
  • Revealing the Underlying Mechanisms of How Initial pH Affects Waste Activated Sludge Solubilization and Dewaterability in Freezing and Thawing Process
    ACS Sustainable Chem. Eng. (IF 6.14) Pub Date : 2018-10-17
    Xuran Liu, Qiuxiang Xu, Dongbo Wang, Qi Yang, Yanxin Wu, Jingnan Yang, Jilai Gong, Jun Ye, Yifu Li, Qilin Wang, Yiwen Liu, Bing-Jie Ni, Guangming Zeng, Xiaoming Li
    更新日期:2018-10-17
  • Enhanced Full-Spectrum-Response Photocatalysis and Reusability of MoSe2 via Hierarchical N-Doped Carbon Nanofibers as Heterostructural Supports
    ACS Sustainable Chem. Eng. (IF 6.14) Pub Date : 2018-10-16
    Shu Yang, Changlu Shao, Ran Tao, Xiaowei Li, Chaohan Han, Haiyang Liu, Xinghua Li, Yichun Liu
    更新日期:2018-10-17
  • Cost- and Energy-Efficient Butanol-Based Extraction-Assisted Distillation Designs for Purification of 2,3-Butanediol for Use as a Drop-in Fuel
    ACS Sustainable Chem. Eng. (IF 6.14) Pub Date : 2018-10-16
    Junaid Haider, Gregorius Rionugroho Harvianto, Muhammad Abdul Qyyum, Moonyong Lee
    更新日期:2018-10-17
  • Catechol Containing Polyhydroxyurethanes as High-Performance Coatings and Adhesives
    ACS Sustainable Chem. Eng. (IF 6.14) Pub Date : 2018-10-16
    Satyannarayana Panchireddy, Bruno Grignard, Jean-Michel Thomassin, Christine Jerome, Christophe Detrembleur
    更新日期:2018-10-17
  • One-Pot Synthesis of Sustainable High-Performance Thermoset by Exploiting Eugenol Functionalized 1,3-Dioxolan-4-one
    ACS Sustainable Chem. Eng. (IF 6.14) Pub Date : 2018-10-16
    Stefano Gazzotti, Minna Hakkarainen, Karin H. Adolfsson, Marco Aldo Ortenzi, Hermes Farina, Giordano Lesma, Alessandra Silvani
    更新日期:2018-10-17
  • Adsorption of Ethane and Ethylene over 3D-Printed Ethane-Selective Monoliths
    ACS Sustainable Chem. Eng. (IF 6.14) Pub Date : 2018-10-16
    Harshul Thakkar, Qasim Al-Naddaf, Natalia Legion, Morgan Hovis, Anirudh Krishnamurthy, Ali A. Rownaghi, Fateme Rezaei
    更新日期:2018-10-17
  • Renewable Tb/Eu-Loaded Garlic Peels for Enhanced Adsorption of Enrofloxacin: Kinetics, Isotherms, Thermodynamics, and Mechanism
    ACS Sustainable Chem. Eng. (IF 6.14) Pub Date : 2018-10-16
    Yanjun Zhao, Wenhui Li, Ziyan Liu, Jiemin Liu, Lin Zhu, Xintong Liu, Kai Huang
    更新日期:2018-10-17
  • Rational Synthesis of Highly Porous Carbon from Waste Bagasse for Advanced Supercapacitor Application
    ACS Sustainable Chem. Eng. (IF 6.14) Pub Date : 2018-10-16
    Peifeng Yu, Yeru Liang, Hanwu Dong, Hang Hu, Simin Liu, Lin Peng, Mingtao Zheng, Yong Xiao, Yingliang Liu
    更新日期:2018-10-17
  • Vanillin-Based Polyschiff Vitrimers: Reprocessability and Chemical Recyclability
    ACS Sustainable Chem. Eng. (IF 6.14) Pub Date : 2018-10-16
    Hongwei Geng, Yuli Wang, Qingqing Yu, Shaojin Gu, Yingshan Zhou, Weilin Xu, Xi Zhang, Dezhan Ye
    更新日期:2018-10-17
  • In Situ Engineering MoS2 NDs/VS2 Lamellar Heterostructure for Enhanced Electrocatalytic Hydrogen Evolution
    ACS Sustainable Chem. Eng. (IF 6.14) Pub Date : 2018-10-16
    Cuicui Du, Dongxue Liang, Mengxiang Shang, Jinling Zhang, Jianxin Mao, Peng Liu, Wenbo Song
    更新日期:2018-10-17
  • Alkali Metal-Assisted Synthesis of Graphite Carbon Nitride with Tunable Band-Gap for Enhanced Visible-Light-Driven Photocatalytic Performance
    ACS Sustainable Chem. Eng. (IF 6.14) Pub Date : 2018-10-16
    Wenjun Wang, Piao Xu, Ming Chen, Guangming Zeng, Chen Zhang, Chengyun Zhou, Yang Yang, Danlian Huang, Cui Lai, Min Cheng, Liang Hu, Weiping Xiong, Hai Guo, Man Zhou
    更新日期:2018-10-17
  • Perovskite Promoted Mixed Cobalt–Iron Oxides for Enhanced Chemical Looping Air Separation
    ACS Sustainable Chem. Eng. (IF 6.14) Pub Date : 2018-10-16
    Jian Dou, Emily Krzystowczyk, Amit Mishra, Xingbo Liu, Fanxing Li
    更新日期:2018-10-17
  • Biodegradable PHB-Rubber Copolymer Toughened PLA Green Composites with Ultrahigh Extensibility
    ACS Sustainable Chem. Eng. (IF 6.14) Pub Date : 2018-10-16
    Jayven Chee Chuan Yeo, Joseph K. Muiruri, Beng Hoon Tan, Warintorn Thitsartarn, Junhua Kong, Xikui Zhang, Zibiao Li, Chaobin He
    更新日期:2018-10-17
  • Hierarchical Ni(OH)2/Polypyrrole/Graphene Oxide Nanosheets as Excellent Electrocatalysts for the Oxidation of Urea
    ACS Sustainable Chem. Eng. (IF 6.14) Pub Date : 2018-10-16
    Zhenqian Cao, Hui Mao, Xi Guo, Dayin Sun, Zhijia Sun, Baoxin Wang, Yu Zhang, Xi-Ming Song
    更新日期:2018-10-17
  • 更新日期:2018-10-17
  • TiO2 Photonic Crystals with Localized Surface Photothermal Effect and Enhanced Photocatalytic CO2 Reduction Activity
    ACS Sustainable Chem. Eng. (IF 6.14) Pub Date : 2018-10-16
    Jingxiang Low, Liuyang Zhang, Bicheng Zhu, Zhengyou Liu, Jiaguo Yu
    更新日期:2018-10-17
  • 更新日期:2018-10-17
  • Postsynthesis Growth of CoOOH Nanostructure on SrCo0.6Ti0.4O3−δ Perovskite Surface for Enhanced Degradation of Aqueous Organic Contaminants
    ACS Sustainable Chem. Eng. (IF 6.14) Pub Date : 2018-10-16
    Ming Zhu, Jie Miao, Xiaoguang Duan, Daqin Guan, Yijun Zhong, Shaobin Wang, Wei Zhou, Zongping Shao
    更新日期:2018-10-17
  • Constructing of Dyes Suitable for Eco-friendly Dyeing Wool Fibres in Supercritical Carbon Dioxide
    ACS Sustainable Chem. Eng. (IF 6.14) Pub Date : 2018-10-17
    Feixia Li, Lihua Lv, Xuejun Wang, Weiru Zhi, Xinhua Lin, Jun Yan, Hongjuan Zhao, Fengling Song, Yanfeng Sun, Xiaoqing Xiong, L Zheng

    Compared with traditional water dyeing, supercritical carbon dioxide (scCO2) dyeing is more environmentally benign. scCO2 is widely used as a green solvent in dyeing synthetic fibers. However, studies involving dyeing natural fibers in scCO2 are scarce. The commonly used methods result in corrosion of the dyeing equipment. Thus, the development of new special dyes suitable for scCO2 dyeing is necessary; in addition, insight into the dyeing mechanism is important in promoting the design and synthesis of dyes for wool fibers in scCO2. On the basis of our previous work, a possible dyeing mechanism in which the dyes exhibit hydrophobic interaction with keratins is proposed. The N=N bond twisting in azo dyes promotes the dyes embedding into the spaces of the alpha helices in proteins. According to the proposed mechanism, two new azo disperse dyes (azo thiazole-N(CH3)2 and azo thiazole-OCH3) were synthesized; these dyes enable the dyeing of wool fibers in scCO2. Meanwhile, the introduction of an N-hydroxysuccinimide (NHS) group results in the fixation rate of the new reactive disperse dyes azo thiazole-NHS and azo-NHS reaching 100%. The byproduct of azo thiazole-NHS and azo-NHS reacting with the amino group of wool keratin is not corrosive to the dyeing equipment, thus enabling an eco-friendly dyeing process for wool fibers. Our strategy of introducing an NHS reactive group will promote the development of new functional disperse dyes suitable for dyeing wool fibers in scCO2.

    更新日期:2018-10-17
  • Improvement of the Performance of Plantation Wood by Grafting Water-Soluble Vinyl Monomers onto Cell Walls
    ACS Sustainable Chem. Eng. (IF 6.14) Pub Date : 2018-10-16
    Hong-Bo Qiu, Sheng Yang, Yanming Han, Xiao-Shuang Shen, Dongbin Fan, Gaiyun Li, Fuxiang Chu

    The accomplishment of lightweight reinforcement of wood through an environmentally friendly approach has being seen as a hard nut to crack for a long time. In this study, a novel method which accomplished by inserting water soluble vinyl monomers into wood cell walls followed by in-situ polymerization was proposed. The distributions of the modifiers in the wood cell walls and the graft mechanism between water-soluble vinyl monomers and wood cell wall components were thoroughly investigated. Results indicated that the water-soluble vinyl monomers could effectively permeate into the wood cell walls and connected with the hydroxyl groups of the lignin and polysaccharides via covalent bonds. The lumen of the wood kept unfilled during the modification process, and just a 40% weight gain was achieved. However, a 68.37% anti-swelling efficiency (ASE) was achieved after a water-soluble vinyl monomer treatment under the optimized condition (when 20 wt% of NMA was co-added). The modulus of rupture (MOR) and modulus of elasticity (MOE) of the corresponding material increased 20.2% and 38.0%, respectively, compared with those of the untreated one.

    更新日期:2018-10-17
  • A Biogenic Synthesis of Tunable Core-Shell C-CaIn2O4, Interface-Bonding, Conductive Network Channels, and Tailored Dielectric Properties
    ACS Sustainable Chem. Eng. (IF 6.14) Pub Date : 2018-10-16
    Barkha Tiwari, Shanker Ram, P. Banerji

    A green aloe-vera gel contains small tissues (as capillaries), which easily upload Ca2+ and In3+ species (when adding in a solution) so as to form a hybrid complex and conduct a local carbothermic reaction (on heating) in the capillaries, forming a nanohybrid C-CaIn2O4  small core-shells of a tunable critical carbon-shell of a few molecular layers. Thin C-CaIn2O4 plates (15-20 nm thickness) thus were grown preferentially in (200) facets in a tetragonal crystal structure on a mixed gel was burnt in camphor in air. The shell thickness was thermally etched down,  = 3  0.5 nm, by post heating at 400-600 C in air. It finely tailors dielectric properties on account of interfaces, conducting networks, multiple surfaces, and oxygen vacancies/twins (induced in a deoxidizing carbon) with effectively enhanced ‘e-h+’ ion-pairs useful for supercapacitors and other devices. In a proposed model, the CaIn2O4 bonds over C-sp2 via O2- in polygons in a network on a 2D-surface interface Ca2+/In3+OC (  0.5 nm), which when heating extends (1% mass) well up to 600 °C in air. A regular monolayer is very critical in tailoring a huge dielectric permittivity εr(s) ~ 6.9x106 on a moderate conductivity dc  0.8x10-4 S-cm-1 at frequency   0. After relaxed rapidly, a fairly steady εr =7.6x103 lasts of yet a usefully large value over   102 Hz. A wide plateau spans in a steady ac ~ 0.8x10-4 S-cm-1 over   103 Hz, before it booting-up progressively by nearly two orders on higher  in a frequency modulated ionic-conductor. The ‘e-h+’ pairs in a conductive network govern the conduction process over uneven and dynamic potential wells. No longer so large εr values persist in a network disrupts in thicker shells.

    更新日期:2018-10-17
  • Post-fermentation recovery of bio-based carboxylic acids
    ACS Sustainable Chem. Eng. (IF 6.14) Pub Date : 2018-10-16
    Eric M. Karp, Robin M Cywar, Lorenz P Manker, Patrick O Saboe, Claire T. Nimlos, Davinia Salvachua, Xiaoqing Wang, Brenna A. Black, Michelle L. Reed, William E. Michener, Nicholas Andrew Rorrer, Gregg T Beckham

    Carboxylic acids are common products produced from the bioconversion of renewable feedstocks. In these processes the separation of the acid product from fermentation broth is the most energy and cost intensive unit operation. Thus, the development of robust, scalable separations approaches that can be applied to a variety of carboxylates is of critical importance to the development of processes that utilize carboxylic acids as platform chemicals. Here we report a batch separations method that includes cell and particulate removal, cation exchange, activated carbon treatment, dewatering with a polymer resin, and product recovery. This method is demonstrated on two unique fermentation broths both derived from corn stover hydrolysate to separate neat succinic and propionic acid. For succinic acid, a crystallization yield of 91% with a product purity of 99.93% was achieved. To our knowledge this is the highest reported crystallization yield and purity for the recovery of succinic acid. Additionally, the method requires approximately 50% less energy compared to standard evaporative crystallization approaches. For propionic acid, neat liquid product was obtained with a distillation yield of 80% and purity of 98%. These excellent results achieved in terms of yield and purity for succinic and propionic acid, two acids with widely different physical properties, from chemically complex hydrolysate broth demonstrates the effective and robust nature of this approach.

    更新日期:2018-10-17
  • In-situ Synthesis of lithiophilic Ag Nanoparticles decorated 3D Porous Carbon Framework toward Dendrite-free Lithium Metal Anodes
    ACS Sustainable Chem. Eng. (IF 6.14) Pub Date : 2018-10-16
    Qidi Sun, Wei Zhai, Guangmei Hou, Jinkui Feng, Lin Zhang, Pengchao Si, Shirui Guo, Lijie Ci

    Three-dimensional (3D) porous N-doped carbon nanoflakes structures decorated with in-situ formed Ag nanoparticles (Ag-NCNS) have been first synthesized by a feasible salt-assisted polymer blowing-up method. The 3D porous carbon materials can be an effective lithium host for the application of lithium metal batteries (LMBs) to address the challenging issues of the growth of lithium dendrites and uncontrollable formation of solid electrolyte interface (SEI). The 3D hosts can effectively restrain the growth of Li dendrites by trapping metallic Li in the matrix as well as decreasing local current. Ag nanoparticles perform as heterogeneous nucleation sites due to the low nucleation overpotential, and therefore, spatial control of Li metal is realized. The as-fabricated Ag-NCNS electrode presents dendrite-free plating morphology and long-term cycling stability with the Coulombic efficiency maintaining at more than 98% for 200 cycles at 0.5 mA cm-2 with a cycling capacity of 1.0 mA h cm-2. In symmetric cells, the Ag-NCNS/Li electrode exhibits much lower voltage hysteresis and stable cycling performance for above 2000 h.

    更新日期:2018-10-17
  • Flavin Dibromide as an Efficient Sensitizer for Photooxidation of Sulfides
    ACS Sustainable Chem. Eng. (IF 6.14) Pub Date : 2018-10-16
    Can Dang, Lijuan Zhu, Huimin Guo, Hongyu Xia, Jianzhang Zhao, Bernhard Dick

    Flavin derivatives (FLs) are the building blocks and functional groups within many enzymes that absorbs strongly in the visible light region and are redox co-factors in a large number of biological processes. We directly attached Br atoms into the conjugated framework of FL to afford FL dibromide (DBFL) and expected the heavy atom effect of Br to facilitate the intersystem crossing of excited FLs to reach the triplet states for efficient sensitization of O2. Compared with FL (ε = 1.01 × 104 M-1 cm-1 at 441 nm), DBFL shows stronger absorption in the visible range (ε = 1.90 × 104 M-1 cm-1 at 450 nm). The singlet oxygen quantum yield of DBFL is enhanced from 55.3 % in FL to 92.2 % at the expense of decreased luminance quantum yield from 37.7 % in FL to 5.5 %, confirming that a large portion of the excited DBFL molecules evolve into triplet excited states. Both FL and DBFL were used in photosensitized oxidation of various sulfides to afford corresponding sulfoxides. DBFL exhibits a 2~5 fold performance enhancement with respect to FL in sensitizing O2 for photocatalytic oxidation. In addition, the oxidation of sulfides with DBFL was found efficient and led exclusive to sulfoxides, with no secondary oxidation products observed. Mechanistic investigations showed that both singlet oxygen and superoxide anion radical are formed as reactive oxygen species. The findings pave the way for design and application of novel organic sensitizers for photocatalytic oxidation.

    更新日期:2018-10-17
  • A Copolymerization Approach to Improving Ru(II)-Complex/C3N4 Hybrid Photocatalysts for Visible-Light CO2 Reduction
    ACS Sustainable Chem. Eng. (IF 6.14) Pub Date : 2018-10-16
    Constantine Tsounis, Ryo Kuriki, Kengo Shibata, Junie Jhon Magdadaro Vequizo, Daling Lu, Akira Yamakata, Osamu Ishitani, Rose Amal, Kazuhiko Maeda

    Copolymerized carbon nitride nanosheets (NS-C3N4) were used as a light absorbing unit while paired with a Ru(II) complex that served as a catalyst for CO2 reduction, forming a hybrid photocatalytic system. Copolymerization with urea and phenylurea in air at 823 K resulted in a carbon nitride material that had wide visible light absorption extending to 650 nm, significantly red-shifted compared to the absorption edge of pristine NS-C3N4, an analogue prepared with only urea (ca. 435 nm). While a hybrid system consisting of pristine NS-C3N4 was found to be inactive under longer wavelength visible light (λ > 500 nm) due to its large band gap, the copolymerized material was able to catalytically convert CO2 to HCOOH under λ > 500 nm irradiation. Furthermore, its activity toward HCOOH production is doubled under λ > 400 nm irradiation after 5 h compared to pristine NS-C3N4. Transient absorption spectroscopy clearly showed improved lifetime of photogenerated free (and/or shallowly-trapped) electrons, which should be the key to enhancing the photocatalytic activity of this hybrid system even under shorter wavelength visible light.

    更新日期:2018-10-17
  • Self-Templating Construction of Porous CoSe2 Nanosheet Arrays as Efficient Bifunctional Electrocatalysts for Overall Water Splitting
    ACS Sustainable Chem. Eng. (IF 6.14) Pub Date : 2018-10-16
    Shuai Wan, Weiyang Jin, Xiaoliang Guo, Jing Mao, Lekai Zheng, Jianling Zhao, Jun Zhang, Hui Liu, Chengchun Tang

    Developing low-cost, high performance and stable non-noble bifunctional electrocatalysts for overall water splitting is of great importance for future energy supplement. Despite recent advances in the synthesis of transition metal selenide nanostructures, the fabrication of porous nanosheet based binder-free electrode with more active sites remains a major challenge. Herein, the self-templating construction of a porous CoSe2 nanosheet array on carbon cloth (p-CoSe2/CC) has been reported by vapor selenizing the pre-prepared α-Co(OH)2 nanosheet array precursor. Arising from large active surface area, fast diffusion of generated gas and strong structural stability, the as-obtained p-CoSe2/CC can serve as an efficient bifunctional electrocatalyst for both OER and HER in alkaline electrolyte, with a current density of 10 mA cm-2 at overpotential of 243 mV for OER and 138 mV for HER, respectively. Moreover, when p-CoSe2/CC is assembled as an alkaline electrolyzor, it only needs a cell voltage of 1.62 V at 10 mA cm-2 and shows excellent long-term stability of 20 h. The versatile fabrication strategy with self-templated porous structure proves a new way to construct other advanced metal selenide for energy conversion and storage.

    更新日期:2018-10-17
  • Elements in the Crystals Determined the Distribution of Bromine in Nonmetallic Particles of Crushed Waste Printed Circuit Boards
    ACS Sustainable Chem. Eng. (IF 6.14) Pub Date : 2018-10-16
    Jujun Ruan, Jiaxin Huang, Zhihui Yuan, Rong-Liang Qiu

    Waste printed circuit boards (WPCBs) recovery has been the hot topics in the area of environment science. WPCBs contain heavy metals (Cu, Zn, Pb et al.) and nonmetals (fiberglass, plastics and additives). Many technologies have been developed to recover the metals. However, little attention was paid on the dispose of nonmetals. Nonmetallic fractions originating from crushed WPCBs have become one of the largest hazardous wastes stream during recycling of e-wastes in China. Bromine is a major hazardous element in the plastic additives. In this study, we discovered an interesting phenomenon that bromine preferred to concentrate on the surface of fiberglass particles. The causes of this phenomenon were explained from the views of crystal structure of the nonmetallic particles and electron orbitals of the elements. We found glass fibers have ability to absorb bromine due to chemical and physical adsorption. Na and Ca in the crystal structure of fiberglass captured bromine on the surface of fiberglass. Bromine in nonmetals of crushed WPCBs can be removed by separating fiberglass particles. This discovery contributes to develop green technology of removing bromine from crushed WPCBs. Meanwhile, the toxicity of bromine should be cared in the reuse of fiberglass.

    更新日期:2018-10-17
  • Simple Fabrication of High-Efficiency N, O, F, P-Containing Electrodes through Host–Guest Doping for High-Performance Supercapacitors
    ACS Sustainable Chem. Eng. (IF 6.14) Pub Date : 2018-10-16
    Fangyuan Hu, Tianpeng Zhang, Jinyan Wang, Cheng Liu, Shengming Li, Shui Hu, Xigao Jian

    N,O-Containing micropore heteroatom carbon frameworks (MHCFs@600) were synthesized by ionothermal synthesis approach using 4,4′-(4-oxophthalazine-1,3(4H)-diyl)dibenzonitrile. (CH3CH2CH2CH2)4N+(PF6)- was then introduced into the hierarchical pore structure with pore size ranging from 0.3-5.8 nm by simple and high-efficiency host–guest interaction to obtain an electrode material (f-MHCFs@600) rich in N (6.15 wt.%), O (6.22 wt.%), P (2.21 wt.%), and F (7.26 wt.%). After introduction of F and P, the prepared f-MHCFs@600 showed a voltage window (1.4V) larger than the theoretical potential of water (1.23V). f-MHCFs@600 exhibited a high specific capacitance of 244.8 F g-1 at 0.1 A g-1 and an excellent cycling stability (capacitance retention of 98.5% over 10,000 cycles) in a three-electrode system at a high voltage window (1.4 V), due to the stable existence of P and F. In particular, compared with the MHCFs@600, RΩ decreased from 1.68 Ω to 0.318 Ω and Rct changed from 25 Ω to 4.2 Ω in the high-frequency area of the f-MHCFs@600. Moreover, the introduction of phosphorus and fluorine increased the voltage window, resulting in energy density from 3.78 Wh kg-1 to 8.1 Wh kg-1 at 1 A g-1 and the maximum power density of 3500 W kg-1 at 10 A g-1 with 1 M H2SO4 as the electrolyte in Swagelok cells. Therefore, the proposed method was a practical and excellent strategy for synthesizing heteroatom-rich carbon materials and significantly increase energy density for energy-storage/conversion applications.

    更新日期:2018-10-17
  • Achieving Sustainable Ultralight Electromagnetic Absorber from Flour by Turning Surface Morphology of Nanoporous Carbon
    ACS Sustainable Chem. Eng. (IF 6.14) Pub Date : 2018-10-16
    Huanqin Zhao, Yan Cheng, Hualiang Lv, Baoshan Zhang, Guangbin Ji, Youwei Du

    It is well known that the surface architecture of absorber has a significant effect on the final electromagnetic (EM) wave attenuation behavior. Herein, a series of nanoporous carbon media with different surface morphologies, including honeycomb-like structure, three dimension (3D) interrelated network and irregular lump shape, were obtained by a facile one-step strategy employing the green biomass of wheat flour as precursor. By optimizing the surface architecture, it is demonstrated that the elaborated 3D interrelated skeleton makes a significant contribution on the eventual EM energy attenuation. At the identical low filler content of only 8 wt%, the nanoporous carbon media with 3D interrelated skeleton shows the minmium reflection loss (RLmin) of -51 dB, almost nine times higher than that of other two nanoporous carbon media with honeycomb-like structure and irregular lump shape. And the corresponding effective frequency bandwidth (fe, RL exceeding -10 dB) of 4.8 GHz was achieved at a thin thickness of 1.8 mm. Moreover, when slightly changing the mass percentage to 9 wt% in paraffin matrix, the broad fe region of 6 GHz could cover the whole Ku band. This work provides a facile, sustainable and low-cost approach for developing ultralight and highly efficient absorption media by means of the renewable biomass as source, and the derived 3D carbon skeleton displays a great potentiality for deal with EM interference.

    更新日期:2018-10-17
  • Deep oxidative desulfurization of fuel catalyzed by modified heteropolyacid –the comparison performance of three kinds of ionic liquids
    ACS Sustainable Chem. Eng. (IF 6.14) Pub Date : 2018-10-16
    Siwen Li, Ruimin Gao, Jianshe Zhao

    Three kinds of ionic liquid modified heteropolyacids, with one N atom, two N atoms and cyclic N type of quaternary ammonium salt, were synthesized successfully (S-POM, D-POM and C-POM). And the relative heterogeneous catalysts system for oxidative desulfurization was obtained from simple one-pot hydrothermal reaction and modified heteropolyacids in the pores of MCM-41 after the MOF-199 template self-assembly (S/D/C-POM@MOF@MCM-41). These as-designed samples were characterized via XRD, XPS, TEM, BET analysis and so on. Results showed that the S/D/C-POM active species could be successfully immobilized into the mesoporous materials and all retained their Keggin structure. The C-PMM carried out excellent performance for oxidesulfurization, under optimal conditions, the rate of DBT removal could up to 100% in 90 min and the catalyst was reused more than ten times with nearly no significant reduction on catalytic activity. The various sulfur compounds are also an important effect on catalytic performance, which also investigated and found that the competitive adsorption oxidation with the BT and 4,6-DMDBT in real oils from the DFT calculation. According to the real diesel oxidative desulfurization, it was found that nearly all the sulfur compounds could be completely removed. Meanwhile possible mechanism is also studied under the calculation evaluation.

    更新日期:2018-10-17
  • Controlling the Core-Shell Structure of CuS@CdS Heterojunction via Seeded Growth with Tunable Photocatalytic Activity
    ACS Sustainable Chem. Eng. (IF 6.14) Pub Date : 2018-10-16
    Naixu Li, Wenlong Fu, Chen Chen, Maochang Liu, Fei Xue, Quanhao Shen, Jiancheng Zhou

    We report the seed-mediated synthesis of CuS@CdS core-shell heterojunction with diverse morphology by introducing kinetic control. By using CuS nanoplates as seeds and a collective manipulation of the injection rate of Cd2+ precursor with a syringe pump and the reaction temperature, two distinctive growth modes, i.e., island and layer-by-layer modes, respectively, could be realized. It is found that the growth is, in principle, determined by the deposition rate relative to the diffusion rate of the CdS growth monomers. Specifically, at a high injection rate and a relatively low reaction temperature, the deposition of CdS monomers on the surface of the CuS nanoplate follows an island growth mode because of the lattice mismatch between CuS and CdS and distinct binding energies of them. We can facilitate surface diffusion of these deposited monomers by reducing the injection rate of Cd2+ and increasing the reaction temperature. In this case, growth can be switched to a layer-by-layer mode. The products are found with tunable and significantly improved photocatalytic performance toward dye degradation and H2 production from water under visible-light irradiation in comparison to the sole use of either CdS or CuS photocatalyst. This work provides an effective approach to the rational design of heterojunctions.

    更新日期:2018-10-17
  • Hetero-structure Manipulation towards Ameliorating Electrodes for Better Lithium Storage Capability
    ACS Sustainable Chem. Eng. (IF 6.14) Pub Date : 2018-10-16
    Jing Cuan, Fan Zhang, Hongyu Zhang, Jun Long, Shilin Zhang, Gemeng Liang, Qili Gao, Junnan Hao, Linxi Dong, Gaofeng Wang, Xuebin Yu

    As one of the major problems facing lithium ion batteries, sluggish charge transfer often induces undesirable large resistance, over-potential and round trip inefficiency of batteries during recharge. The need to improve charge transport kinetics is motivating research into directions that would rely on high quality hetero-structure designs, since it is reported that the synergistic effects and as-formed inbuilt electric fields of hetero-structures could facilitate charge transport across the hetero-structure, as well as enforce interactions between the active phases. Hetero-manipulation holds great promise for realizing efficient interconnects between charge transport kinetics and hetero-structure designs. However, most previous studies delineate ensemble measurements of a given static hetero-electrode, which do not permit isolating and dissecting the effects of hetero-structural manipulation on electrochemical performances individually. Here, by choosing conversion type electrodes as example and comparing series samples which were collected in the evolution of hetero-structures, the effects of hetero-structure manipulation towards modifying over-potential and lithium storage capability have been systematically investigated. The results demonstrate that structural features (e.g. robust skeleton, smaller grain sizes, and high quality hybridity) play an important role in engendering faster charge transfer and narrowing over-potential than that at the level of micrometer scales.

    更新日期:2018-10-17
  • 更新日期:2018-10-16
  • 更新日期:2018-10-16
  • NiCoP/CoP Nanoparticles Supported on Ti4O7 as the Electrocatalyst Possessing an Excellent Catalytic Performance toward the Hydrogen Evolution Reaction
    ACS Sustainable Chem. Eng. (IF 6.14) Pub Date : 2018-10-15
    Dan Ma, Ruihao Li, Zhilin Zheng, Zhijun Jia, Kai Meng, Yi Wang, Guangming Zhu, Hui Zhang, Tao Qi
    更新日期:2018-10-16
  • High Yield, Low-Waste Synthesis of a Family of Pyridyl and Imidazolyl-Substituted Schiff Base Linker Ligands
    ACS Sustainable Chem. Eng. (IF 6.14) Pub Date : 2018-10-15
    Rana Sanii, Alankriti Bajpai, Ewa Patyk-Kaźmierczak, Michael J. Zaworotko
    更新日期:2018-10-16
  • 更新日期:2018-10-16
  • Harvesting the Benefits of Inherent Reactive Functionalities in Fully Biosourced Isomeric Benzoxazines
    ACS Sustainable Chem. Eng. (IF 6.14) Pub Date : 2018-10-15
    Nagarjuna Amarnath, Swapnil Shukla, Bimlesh Lochab
    更新日期:2018-10-16
  • Selective hydrogenation of biomass-derived 2(5H)-furanone to γ-butyrolactone over Ni-based bimetallic catalysts
    ACS Sustainable Chem. Eng. (IF 6.14) Pub Date : 2018-10-15
    Xiaodan Li, Weiming Wan, Jingguang G Chen, Tiefeng Wang

    2(5H)-Furanone was selectively hydrogenated to γ-butyrolactone (GBL) over Ni-based bimetallic catalysts, Ni-M/SiO2 (M = Fe, Co, Cu and Zn). Catalyst characterization showed that the metal dispersion and reducibility were changed after introducing a second metal, while the physical morphology was nearly unchanged. The most active and selective bimetallic catalyst was found to be Ni-Fe/SiO2. The reaction rate constant over the 4wt%Ni-1wt%Fe/SiO2 bimetallic catalyst was 0.06 min-1, doubling that over 5wt%Ni/SiO2, and the selectivity to GBL increased slightly from 86.1% to 89.5%. The Fe/(Ni+Fe) weight ratio was changed to optimize the promoting effect of Fe. The Ni-Fe bimetallic effect was further investigated using temperature programmed desorption (TPD) experiments on single crystal model surfaces with different Fe/Ni(111) structures, revealing that the enhanced catalyst activity was mainly contributed by the formation of Ni-Fe surface alloy.

    更新日期:2018-10-16
  • Cu(II)-Glucose: Sustainable Catalyst for the Synthesis of Quinazolinones in a Bio-Mass Derived Solvent 2-MethylTHF and Application for the synthesis of Diproqualone
    ACS Sustainable Chem. Eng. (IF 6.14) Pub Date : 2018-10-15
    Abhishek V Dubey, A. Vijay Kumar

    An efficient method for the synthesis of quinazolinones by a domino cross-coupling reaction of 2-halobenzoic acids and amidines is demonstrated for the first time using copper-glucose combination as an inexpensive catalytic system in a bio-mass derived green solvent 2-methylTHF. Here glucose plays a dual role, both as a reducing agent generating the low-valent copper ions from cupric precursors and as a chelating agent of the generated low-valent copper species, thereby impeding their deactivation. A wide variety of quinazolinones were synthesized in good to excellent yields. Notably, the activation of less reactive 2-bromo/chlorobenzoic acids by the catalyst not only advocates the efficiency of the developed protocol but also the broad substrate scope. Moreover, the developed methodology was successfully applied to the synthesis of the drug molecule diproqualone. The UV-Vis spectrophotometric titration study of cupric and cuprous salts with glucose showed evidence of glucose playing the role as a ligand, thus may act as a stabilizing agent for the low valent copper species formed in the reaction. The use of inexpensive and air stable cupric salts along with glucose for the synthesis of quinazolinones in a green solvent makes this a benign and sustainable method.

    更新日期:2018-10-16
  • Thermal characteristics and kinetic analysis of woody biomass pyrolysis in presence of bifunctional alkali metal ceramics
    ACS Sustainable Chem. Eng. (IF 6.14) Pub Date : 2018-10-15
    Arun K Vuppaladadiyam, Muhammad Zaki Hassan Memon, Guozhao Ji, Abdul Raheem, Ting Zhao Jia, Valerie Dupont, Ming Zhao

    Effects of alkali ceramics, Na2ZrO3 (NZ) and Li4SiO4 (LS), were quantified in the catalytic pyrolysis of a woody biomass, sawdust, using thermogravimetric analysis and kinetic modeling. The catalysts were able to initiate thermal decomposition at lower temperatures and enhanced H2 yield. The CO2 sorption abilities of NZ and LS along with catalytic tar cracking properties of Na and Li could have enhanced H2 yield. The mean activation energies estimated by Kissinger-Akahira-Sunose (KAS) and Flynn-Wall-Ozawa (FWO) methods were within 164-166, 114-116, 112-117 kJ mol−1 for sawdust (SD), sawdust mixed with Li4SiO4 (SD-LS) and sawdust mixed with Na2ZrO3 (SD-NZ), respectively. The theoretical and experimental master plots constructed for SD closely match with theoretical master plot corresponding to three-dimensional diffusion (Ginstling-Brounshtein equation) (D4) reaction model. The SD-LS and SD-NZ samples followed first order (F1) reaction model at lower conversions and shifted from F1 to three-dimensional diffusion (D4) reaction model at higher conversions.

    更新日期:2018-10-16
  • Hydrodeoxygenation of Isoeugenol over Alumina Supported Ir-, Pt- and Re Catalysts
    ACS Sustainable Chem. Eng. (IF 6.14) Pub Date : 2018-10-15
    Moldir Alda-Onggar, Päivi Mäki-Arvela, Kari Eränen, Atte Aho, Jarl Hemming, Petriina Paturi, Markus Peurla, Marina Lindblad, Irina L. Simakova, Dmitry Yu. Murzin

    Hydrodeoxygenation (HDO) of isoeugenol (IE) was investigated using bimetallic iridium-rhenium and platinum-rhenium catalysts supported on alumina in the temperature and pressure ranges of 200 -250oC and 17- 40 bar in non-polar dodecane as a solvent. The main parameters were catalyst type, hydrogen pressure and initial concentration. Nearly quantitative yield of the desired product, propylcyclohexane (PCH) at complete conversion in 240 min was obtained with Ir-Re/Al2O3 prepared by deposition–precipitation method using 0.1 mol/l IE initial concentration. High iridium dispersion together with modification effect of rhenium provided in-situ formation of IrRe active component with reproducible catalytic activity for selective HDO of IE to PCH. The reaction rate was shown to increase with the increasing initial IE concentration promoting also HDO and giving a higher liquid phase mass balance. Increasing hydrogen pressure benefits the PCH yield.

    更新日期:2018-10-16
  • Unconventional and sustainable nanovectors for phytohormone delivery: insights on Olea europaea
    ACS Sustainable Chem. Eng. (IF 6.14) Pub Date : 2018-10-15
    Ilaria Clemente, Felicia Menicucci, Ilaria Colzi, Luca Sbraci, Carla Benelli, Cristiana Giordano, Cristina Gonnelli, Sandra Ristori, Raffaella Petruccelli

    Nanoscience has allowed outstanding progress in many fields of research. Concerning the transport and delivery of active principles (drugs, contrast agents, sensitizers etc.), the improvements obtained by miniaturized carriers have recently been extended from medicine and pharmacy to agriculture. However, when coming to crop production, issues such as scalability, eco-compatibility and sustainability represent a veritable challenge, so far only partially addressed. In this study, we propose lipid-based nanoformulations for the administration of root-promoting phytohormones to different cultivars of Olea europaea. In order to maximize the efficiency of these novel carriers, we devised nanovectors made by lipids extracted from olive pomace, a material derived from the plant itself and representing a waste in oil processing. This allowed combining cost-effectiveness and environment friendly procedures. The implementation obtained by using adjuvants, such as purified natural lipids forming stable and well defined nano-objects, was also investigated. Controlled and reproducible formulations were achieved after extensive study of the obtained systems, in particular by physico-chemical characterization through advanced methods. Trials in vivo and in vitro showed that rooting was enhanced with respect to conventional treatments, thus indicating that the innovative formulations here fabricated have significant potentiality for the large-scale administration of agrochemicals in the context of sustainable economy.

    更新日期:2018-10-16
  • Nitrogen and phosphorous dual-doped graphene aerogel confined monodisperse iron phosphide nanodots as an ultrafast and long-term cycling anode material for sodium-ion batteries
    ACS Sustainable Chem. Eng. (IF 6.14) Pub Date : 2018-10-15
    Yaping Wang, Qi Fu, Chuan Li, Huanhuan Li, Hua Tang

    Transition metal phosphides have recently gained much interest as anodes for sodium-ion batteries (SIBs). However, their intrinsic volume change during Na ion uptake/release leads to poor cycling stability and limited rate performance. To solve this problem, a unique hybrid architecture of iron phosphide nanodots bound on 3D phosphorus-doped graphitic nitrogen-rich graphene (FeP/NPG) is obtained from the phosphidation of NH2-rich reduced graphene oxide (rGO) decorated Fe2O3. Monodispersed FeP nanodots integrating with 3D NPG networks and high content of graphitic N not only induce fast Na ion/electron transfer kinetic and excellent structural stability during long-term cycling, but also enhance the capacitive contribution. These features of FeP/NPG result in high-performance sodium storage. A high reversible capacity of 613 mAh g-1 is achieved at 50 mA g-1. Also, excellent rate capability of 422 mAh g-1 and 349 mAh g-1 is observed at 1 A g-1 and 3 A g-1, respectively. More importantly, an ultra-stable capacity of 378 mAh g-1 at 1 A g-1 can be obtained upon long-term cycling. It shall be possible to extend this strategy for fabricating other transition metal phosphide based anodes for advanced SIBs.

    更新日期:2018-10-16
  • NH4I facilitated the formation of mixed-dimensional perovskite and improved stability at different annealing temperatures
    ACS Sustainable Chem. Eng. (IF 6.14) Pub Date : 2018-10-15
    Haiying Zheng, Guozhen Liu, Xiaoxiao Xu, Xianxi Zhang, Ahmed Alsaedi, Tasawar Hayat, Xu Pan

    Hybrid organic/inorganic perovskites as light absorption layer have received considerable attention because of the preeminent photovoltaic performance. Presently, gaining high power conversion efficiency (PCE) and long-term stability of perovskite solar cells (PSCs) is very crucial to achieve its practical application. Here, NH4I was introduced to fabricate the mixed dimensional (MD) perovskite films at different annealing temperatures. The addition of NH4I could improve the preferential crystal orientation within the polycrystalline, favor the formation of MD perovskite and suppress the existence of yellow PbI2 phase. The results indicate that MD perovskite films have smoother surface, preferentially oriented perovskite crystal and better optical properties at the same annealing temperature, compared with FA perovskite. The MD perovskite device displays excellent photovoltaic performance possessing a high PCE of 18.93% at 100 °C. More importantly, the 1200-h humidity and 200-h heat stability tests reveal that the MD perovskite devices at optimized annealing temperature show great stability against moisture and heat. The findings are crucial to perovskite photovoltaics on improving the PCE and the long-term stability in industrialization and other applications.

    更新日期:2018-10-16
  • The Mixing Effect of Ligand on Carbon Dioxide Capture Behavior of Zeolitic Imidazolate Framework/Poly (amide-b-ethylene oxide) Mixed Matrix Membranes
    ACS Sustainable Chem. Eng. (IF 6.14) Pub Date : 2018-10-15
    Chien-Chieh Hu, Chia-Her Lin, Yu-Hsuan Chiao, Yu-Ching Huang, Hui-An Tsai, Wei-Song Hung, Kueir-Rarn Lee, Juin-Yih Lai

    Mixed matrix membranes (MMMs) were synthesised from poly(amide-b-ethylene oxide) (Pebax) and mixed-ligand zeolitic imidazolate framework (ZIF-8-90(x)). The separation performance and microstructure of the membranes with different organic linker fractions and ZIF-8-90(x) loadings were characterized. Energy-dispersive X-ray microanalysis and Field-emission scanning electron microscopy showed excellent adhesion between Pebax and ZIF-8-90(x), and no voids or clusters were observed. Single gas permeation measurements on MMMs revealed that the CO2/N2 selectivity of the membranes with ZIF-8-90(x) was better than that of the membrane with ZIF-8. Permeation analysis showed that the membranes with mixed ZIF-8 and ZIF-90 offers a tight microstructure. Overall, this study demonstrated that the gas separation behaviour of the Pebax membrane was significantly changed by ZIF-8-90(x) loading. The ZIF-8-90(x)/Pebax membranes can be a good candidate for CO2 capture applications.

    更新日期:2018-10-16
  • Selective Synthesis of Diglycerol Monoacetals via Catalyst-Transfer in Biphasic System and Assessment of their Surfactant Properties
    ACS Sustainable Chem. Eng. (IF 6.14) Pub Date : 2018-10-15
    Qiong Tang, Xu Li, Jinxiang Dong

    Diglycerol obtained from biomass glycerol has been valorized into selective products by acetalization reaction in the presence of ZnCl2. A synthesis method of monoacetals via catalyst-transfer is carried out encompassing two phase-separated reagents, diglycerol with n-octanal. Mechanistic analysis has revealed that the formation of unstable emulsion promotes the reaction, and the selectivity is affected by the catalyst-transfer direction. By measuring the Zn content in the two phases, we demonstrated the transfer direction of ZnCl2 and the monoacetal were opposite, resulting in separation of the catalyst and the substrate. And the formation of diacetal was retarded. The products monoacetals exhibit superior surfactant properties, especially in terms of foam stability and alkali tolerance.

    更新日期:2018-10-16
  • Flexible, degradable and cost-effective Strain Sensor Fabricated by a Scalable Papermaking Procedure
    ACS Sustainable Chem. Eng. (IF 6.14) Pub Date : 2018-10-15
    Hanbin Liu, Huacui Xiang, Yubo Ma, Zhijian Li, Qingjun Meng, Huie Jiang, Haiwei Wu, Peng Li, Hongwei Zhou, Wei Huang

    Flexible strain sensors (FSSs) are essential components in intelligent systems, especially in soft robots, human sport monitoring et al., but their scalable preparation remains a challenge. In this work, we firstly proposed and demonstrated a strategy to prepare FSS with a scalable and cost-effective pa-permaking procedure. Cellulose fibers from waste papers and conductive graphite were mixed and sub-ject to a paper former (papermaking machine in laboratory), producing a strain sensitive paper with diameter of 20 cm in 10 min. With the scrips from the strain sensitive paper, the strain sensor was as-sembled showing good sensing performance for both bending (GF=27, response time of 360 ms) and twisting (GF=26.5, response time of 440 ms) strains. It can be used in movement detections of soft matters (such as plastic ruler), elbow joints of puppet and human fingers. The cost of the sensor calcu-lated as low as $0.00013 and the strain sensitive paper can be degraded in around one minute in water under stirring. Furthermore, the strategy can be expanded to sensor based on carbon black (CB) indi-cating a universality, which may pave a way for developing more intelligent materials and devices.

    更新日期:2018-10-16
  • Pyrolysis/GC/MS as a Method to Rapidly Profile Pyrotechnic Formulations for Objectionable Gaseous Emissions
    ACS Sustainable Chem. Eng. (IF 6.14) Pub Date : 2018-10-15
    Jonathan M. Dilger, Eric J. Miklaszewski, Douglas Papenmeier, Kelly M Thoreson, Patrick W Fedick, Jessica E Coleman, Brian C Bohrer

    A method to empirically determine the gaseous emissions produced from a pyrotechnic flare composition through the combination of gas chromatography and mass spectrometry is described. In this approach, milligram quantities of a model yellow signal flare composition and its individual polymeric constituents were subjected to pyrolysis at conditions that were guided via thermal analysis. Many volatile organic compounds and polycyclic aromatic hydrocarbons were identified as emission products even though thermochemical calculations fail to anticipate such products. Thus, these data may complement characterization of emission products predicted in silico. Pyrolysis of this pyrotechnic composition also demonstrated unique products formed via donation of nitrogen to aromatic fragments originating from resinous portions of the formulation. These products included EPA priority pollutants that were not formed by decomposition from staple ingredients. This work demonstrates that a variety of EPA priority pollutants were formed during the simulated combustion of what would otherwise be considered an environmentally-friendly pyrotechnic. These pollutants originated from commonly used polymeric ingredients indicating the true environmental impact of many polymer-based energetics may need to be revisited.

    更新日期:2018-10-16
  • Antimicrobial Mode-of-Action of Colloidal Ti3C2Tx MXene Nanosheets
    ACS Sustainable Chem. Eng. (IF 6.14) Pub Date : 2018-10-15
    Ahmad Arabi Shamsabadi, Mohammad Sharifian Gh., Babak Anasori, Masoud Soroush

    Antibacterial properties of two-dimensional (2D) nanomaterials are of great interest in fields such as environmental engineering, biomedical engineering and medicine. Ti3C2Tx MXene, a novel 2D nanomaterial, has been reported to have excellent antibacterial activity against both Gram-negative and Gram-positive bacteria. This paper presents the first study aimed at determining the primary antibacterial mode-of-action of the MXene. We studied the antibacterial properties of MXene nanosheets with lateral sizes of 0.09, 0.35, 0.57 and 4.40 µm against Escherichia coli and Bacillus subtilis bacteria for 3 and 8 hours in the dark. Quantitative analyses of bacteria species performed with complementary techniques, fluorescence imaging and flow cytometry, confirmed that the antibacterial activity of the MXene nanosheets is both size- and exposure-time-dependent. Smaller nanosheets showed higher antibacterial activities against both bacteria. For the first time, we applied broth microdilution assay to determine whether direct physical interactions between the MXene nanosheets and bacteria cells play a part in antibacterial properties on the nanosheets. Growth kinetics measurements evidently indicate that direct physical interactions between the sharp edges of the nanosheets and bacteria membrane surfaces play a crucial part in antibacterial properties of the nanosheets. The MXene nanosheets were found to damage the bacterial cells significantly in less than 3 hours, leading to the release of bacteria DNA from the cytosol followed by bacteria cell dispersion. These results point to the great potential of MXene-based antibacterial products for water treatment, medical, and biomedical applications.

    更新日期:2018-10-15
  • Efficient and Selective Extraction of 99mTcO4– from Aqueous Media using Hydrophobic Deep Eutectic Solvents
    ACS Sustainable Chem. Eng. (IF 6.14) Pub Date : 2018-10-15
    Timothy E. Phelps, Nakara Bhawawet, Silvia S Jurisson, Gary A. Baker

    Extraction of trace pertechnetate (99mTcO4–) from aqueous media using hydrophobic deep eutectic solvents (DESs) is reported for the first time. The hydrophobic DESs studied comprise a 1:2 molar ratio of a tetraalkylammonium or tetraalkylphosphonium halide mixed with a monocarboxylic acid (i.e., saturated fatty acid). Quantitative (>99%) removal of 99mTcO4– from competing anion (Cl–, NO3–, H2PO4–, SO42–, I–, or ReO4–) solutions within 60 min at 25 C demonstrates an efficient and selective extraction.

    更新日期:2018-10-15
  • Clarifying the Role of Free Ammonia in the Production of Short-Chain Fatty Acids from Waste Activated Sludge Anaerobic Fermentation
    ACS Sustainable Chem. Eng. (IF 6.14) Pub Date : 2018-10-12
    Jianwei Zhao, Yiwen Liu, Yali Wang, Yu Lian, Qilin Wang, Qi Yang, Dongbo Wang, Guo-Jun Xie, Guangming Zeng, Yingjie Sun, Xiaoming Li, Bing-Jie Ni
    更新日期:2018-10-14
  • Extraordinarily Low Friction and Wear of Epoxy-Metal Sliding Pairs Lubricated with Ultra-Low Sulfur Diesel
    ACS Sustainable Chem. Eng. (IF 6.14) Pub Date : 2018-10-12
    Lihe Guo, Guitao Li, Yuexia Guo, Fuyan Zhao, Ligang Zhang, Chao Wang, Ga Zhang
    更新日期:2018-10-14
  • In Situ Fabrication of Ni2P Nanoparticles Embedded in Nitrogen and Phosphorus Codoped Carbon Nanofibers as a Superior Anode for Li-ion Batteries
    ACS Sustainable Chem. Eng. (IF 6.14) Pub Date : 2018-10-13
    Zhuzhu Du, Wei Ai, Jun Yang, Yujiao Gong, Chenyang Yu, Jianfeng Zhao, Xiaochen Dong, Gengzhi Sun, Wei Huang

    A facile and cost-effective method has been developed for the fabrication of Ni2P nanoparticles encapsulated in N,P-codoped carbon nanofibers (Ni2P@NPCNFs) using the commercialized products of melamine polyphosphate (MPP) and Ni foam. During the synthetic process, MPP serves as the solid phosphorous source for the phosphidation of Ni foam, and simultaneously performs as carbon source for the in situ growth of functionalized carbon nanofibers, resulting in a favorable architecture of Ni2P well-integrated carbon matrix. With this unique structure, the resultant Ni2P@NPCNFs electrode shows remarkable Li ion storage performance, in terms of high reversible capacity and long-cyclic lifespan (850 mAh g-1 at 200 mA g-1 after 450 cycles), as well as good rate behavior (300 mAh g-1 at 3200 mA g-1). This work not only presents a new avenue to construct advanced Ni2P-based functional nanocomposites for Li-ion batteries but also paves the way to explore unique transition-metal phosphides towards diverse applications.

    更新日期:2018-10-14
  • Bioinspired Modification via Green Synthesis of Mussel-Inspired Nanoparticles on Carbon Fiber Surface for Advanced Composite Materials
    ACS Sustainable Chem. Eng. (IF 6.14) Pub Date : 2018-10-13
    Bo Gao, Wentao Du, Zhenna Hao, Haifeng Zhou, Dechun Zou, Ruliang Zhang

    Carbon fibers with excellent performances suffer from their low surface activity in many applications. Modifying fiber surfaces can improve the properties of fiber-matrix interface, which can expand the usage of carbon fiber in the field of energy. However, there are two main problems in the most traditional researches: the damaged structure of fiber by pretreatment to build the active site, and the weak interaction between fiber and nanoparticles by deposition. Herein, we first report the bioinspired copolymerization of dopamine and poly(amidoamine) on the fiber surface using polydopamine (the versatile adhesives) as an efficient and robust platform to graft poly(amidoamine) onto fiber surface at room temperature. Systematic investigations were performed to explore optimum conditions and the reaction mechanism of copolymerization of dopamine/poly(amidoamine) at different quantities of poly(amidoamine) on carbon fiber surfaces. The novel modification can introduce sufficient functionalization groups on fiber surface without decreasing fiber tensile strength, which can significantly increase the interfacial shear strength and impact strength of the resulting composites to 124.05 MPa and 91.17 KJ/m2, respectively. The novel strategy presents a promising and “green” platform to prepare advanced composite materials for the demand of highly mechanical properties and the usages of energy conservation.

    更新日期:2018-10-14
  • Approaching Theoretical Capacities in Thick Lithium Vanadium Phosphate Electrodes at High Charge/Discharge Rates
    ACS Sustainable Chem. Eng. (IF 6.14) Pub Date : 2018-10-13
    Xiao Zhu, Zhimin Li, Xilai Jia, Wenjun Dong, Ge Wang, Fei Wei, Yunfeng Lu

    It’s a great challenge to engineer thick or bulk electrodes with well-maintained rate performance, since their charge-transport kinetics are severely worsened at large current densities. Here, high-power thick cathode of Li-ion batteries has been built based on mesoporous lithium vanadium phosphate interweaved with carbon nanotube nest. A facile yet effective synthesis method based on aerosol-assisted spray process followed with high-temperature calcination has been developed to synthesize such nanocomposite. During spraying process, high-aspect-ratio carbon nanotubes are interweaved into lithium vanadium phosphate and form long-range conductive nest. This structure provides efficient charge transport for the active material, even in their thick electrodes. To verify this, 30 and 160 m binder-free electrodes have been fabricated. The results show that the 160m electrode can reach comparable rate performance to that of 30 m from the rate of 0.2 C to 10 C. The discharge capacities at 10 C for 30 and 160 m electrodes are 130 and 122 mAh g-1 respectively, which are 98 % and 92 % of theoretical capacity of lithium vanadium phosphate. Also, a capacity retention over 96 % is still retained after 1000 cycles at 20 C, exhibiting good cycling stability. Hence, the designed nanocomposite is promising for fast charging/discharging of batteries. The synthetic method is scalable, and can be used for synthesis of other electrochemical active materials.

    更新日期:2018-10-14
Some contents have been Reproduced with permission of the American Chemical Society.
Some contents have been Reproduced by permission of The Royal Society of Chemistry.
化学 • 材料 期刊列表