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Efficient nitrate electroreduction over Mn-doped Cu catalyst via regulating N-containing intermediates adsorption configuration Sci. China Chem. (IF 9.6) Pub Date : 2024-04-18 Limin Wu, Shunhan Jia, Libing Zhang, Ruhan Wang, Jiaqi Feng, Xiaofu Sun, Buxing Han
The electrochemical reduction of NO3− to NH3 holds promise for economic and environmental benefits, presenting an energy-efficient alternative to the traditional Haber–Bosch method. However, challenges exist due to its sluggish kinetics, multiple intermediates, and various reaction pathways. In this study, Mn-doped-Cu catalyst was synthesized and employed for electrochemical NO3−-to-NH3 conversion
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Upgrading waste NOx into amino acids via electrocatalysis on Co nanoparticles encapsulated in hollow carbon nanofibers Sci. China Chem. (IF 9.6) Pub Date : 2024-04-18 Jiahui Xian, Kaixing Cai, Peisen Liao, Shihan Wang, Guangqin Li
Electrocatalytic conversion of waste nitrogen oxide (NOx) into value-added nitrogenous chemicals, especially amino acid, is an emerging strategy to alleviate NOx pollution. However, this process suffers from the coexistence of multiple competitive reactions leading to complex product distribution and low efficiency, and thus the rational design and modulation of efficient catalysts remains a formidable
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Mesoporous polymers: soft-template self-assembly synthesis and applications Sci. China Chem. (IF 9.6) Pub Date : 2024-04-17 Facai Wei, Tingting Zhang, Jianwei Fu, Chengbin Jing, Jiangong Cheng, Shaohua Liu
Mesoporous polymers combine the advantages of polymer materials (abundant polar functional groups, lightweight, flexibility, and processability) and mesoporous structures (high specific surface area, adjustable pore structure, and large pore volume); hence, they have great application potential in sensing, adsorption, catalysis, energy storage, biomedicine, etc. Currently, developing advanced synthetic
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Unraveling the mechanism of potassium metal capacitor for highly efficient charge storage Sci. China Chem. (IF 9.6) Pub Date : 2024-04-17 Qianqian Yao, Pei Tang, Kunyao Peng, Zhenyuan Miao, Yuecong Chen, Qingyun Dou, Xingbin Yan
Although hybrid metal ion capacitors (MICs) are highly desired to achieve both high power density of supercapacitors and high energy density of rechargeable batteries, the mismatch problem of electrochemical kinetics of negative and positive electrodes in MICs hampers the realization of this goal. Here, a new hybrid capacitor concept-potassium metal capacitor (PMC) is proposed for the first time, where
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Cation-π interactions regulate electrocatalytic water oxidation over iridium single atoms supported on conjugated polymers Sci. China Chem. (IF 9.6) Pub Date : 2024-04-17 Jing Bai, Yunxia Liu, Ziwei Ma, Shouhan Zhang, Guojie Chao, Haiping Lin, Elke Debroye, Longsheng Zhang, Tianxi Liu
Designing cost-effective and high-performing metal catalysts is significant for many renewable energy conversion technologies. Lowering metal loading without sacrificing activity and durability is highly desired for the catalyst design, especially for those reactions where the noble metals deliver the best catalyzing performance. Single-atom catalysts (SACs) with maximal metal-atom utilization, homogeneous
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Efficient nitrite-to-ammonia electroreduction over Zr-Ni frustrated Lewis acid-base pairs Sci. China Chem. (IF 9.6) Pub Date : 2024-04-17 Ying Zhang, Zhuohang Li, Wenyu Du, Kai Chen, Ke Chu
Electrochemical NO2−-to-NH3 conversion (NO2RR) offers a green route to NH3 electrosynthesis, while developing efficient NO2RR catalysis systems at high current densities remains a grand challenge. Herein, we report an efficient Zr-NiO catalyst with atomically dispersed Zr-dopants incorporated in NiO lattice, delivering the exceptional NO2RR performance with industrial-level current density (>0.2 A
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Cr-catalyzed allylic C(sp3)–H addition to aldehydes enabled by photoinduced ligand-to-metal charge transfer Sci. China Chem. (IF 9.6) Pub Date : 2024-04-17 Xianrong Zeng, Feng-Hua Zhang, Runchen Lai, Xiaoyu Lin, Zhaobin Wang
Photoinduced ligand-to-metal charge transfer (LMCT) has emerged as an effective strategy for synthesizing organic molecules in a sustainable manner. However, the majority of existing reports on selective C(sp3)–H bond functionalization via photoinduced LMCT focus on the use of late transition metals or rare-earth metals for radical additions or cross-couplings. In contrast, the utilization of photoinduced
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A bifunctional wood membrane modified by MoS2/covalent organic framework heterojunctions for effective solar-driven water evaporation and contaminant degradation Sci. China Chem. (IF 9.6) Pub Date : 2024-04-12 Ziwei Cui, Jianfei Wu, Haoran Li, Yaning Xu, Tiantian Wu, Lixing Kang, Qing Huang, Yahui Cai, Jianzhang Li, Dan Tian
Interfacial solar evaporation technology is considered one of the most promising strategies for alleviating the scarcity of freshwater resources. However, solar-driven evaporation technology cannot eliminate the pollutants in the residual wastewater. To solve this problem, we have prepared a two-in-one solar-driven evaporation/photocatalysis system by decorating MoS2/covalent organic framework (COF)
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Polyimide covalent organic frameworks as efficient solid-state Li+ electrolytes Sci. China Chem. (IF 9.6) Pub Date : 2024-04-12 Xu Liu, Shi Wang, Siqi Liu, Chengfang Liu, Xiangchun Li, Jian Wu, Dazhi Li, Shihao Xu, Chongyang Liu, Wen-Yong Lai
Covalent organic frameworks (COFs) are attractive porous crystalline materials with extremely high stability, easy functionalization, and open channels, which are expected to be unique ion conductors/transporters in lithium ion batteries (LIBs). Despite recent advances, low ion conductivity and low transference number, resulting in low charging/discharging rate, low energy density, and short battery
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Structural disruption of melanin-like polymers with boosted UV protection Sci. China Chem. (IF 9.6) Pub Date : 2024-04-12 Zhen Yang, Xianheng Wang, Wanjie Bai, Zikun Zou, Haoxing Wu, Yiwen Li
Manipulating the energy structure of materials represents an efficient way to regulate their light absorption behaviors. For example, constructing donor-acceptor (D-A) structures to increase the polarizability and reduce the energy bandgap of local molecules has been widely used in the field of organic photovoltaics with ordered structures. Remarkably, even in disordered and chaotic systems such as
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Regulation and application of supramolecular gel with circularly polarized luminescence Sci. China Chem. (IF 9.6) Pub Date : 2024-04-12 Shen Song, Yulong Shi, Liangliang Zhu, Bingbing Yue
Supermolecular gel is a three-dimensional network structure assembled by small molecules or polymers in solvents through non-covalent interaction. The emergence of system complexity occurs spontaneously during the molecular self-assembly process. A multitude of chiral molecular self-assembly systems have been engineered, facilitating the achievement of circularly polarized luminescence (CPL) through
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Ligand-controlled NiH-catalyzed regiodivergent hydroalkylation of 2-alkenylazaarenes Sci. China Chem. (IF 9.6) Pub Date : 2024-04-09 Ya-Ping Shao, Zhuo-Min Chi, Yong-Min Liang
A nickel-hydride (NiH)-catalyzed migratory and nonmigratory hydroalkylation reaction of 2-alkenyl azaarenes with alkyl iodines has been established through strategic modulation of N- or P-donor ligands. This method enables the synthesis of diverse β- or γ-branched aromatic N-heterocycles. The mild regiodivergent protocols exhibit wide substrate scope, excellent functional tolerance, and great reaction
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Delicate chemical structure regulation of nonfullerene acceptor for efficient and large thickness organic solar cells Sci. China Chem. (IF 9.6) Pub Date : 2024-04-09 Zhe Zhang, Wanying Feng, Yunxin Zhang, Shaohui Yuan, Yuyang Bai, Peiran Wang, Zhaoyang Yao, Chenxi Li, Tainan Duan, Xiangjian Wan, Bin Kan, Yongsheng Chen
Inspired by the success of CH-series acceptors, a small-molecular acceptor, CH-Tz was reported by adopting a new conjugation-extended electron-deficient unit ([1,2,5]thiadiazolo[3,4-b]pyrazine) on the central core. Owing to the enhanced inter-/intra-molecular interactions, CH-Tz exhibited near-infrared absorption and an effective three-dimensional molecular packing network in its single crystal. When
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Ultrasound-driven self-decomposition porphyrins as metal-free CO precursors for gas and sonodynamic synergistic therapy Sci. China Chem. (IF 9.6) Pub Date : 2024-04-09 Shuxin Liu, Jinjuan Ma, Xiang Xu, Aiguo Wang, Nan Zheng
Carbon monoxide (CO) is an endogenous therapeutic gas with an anti-tumor effect. The precise delivery and controlled release of CO in tumor tissues play crucial roles in anti-cancer treatment. However, efficient in situ generation of CO from metal-free CO-releasing molecules (CORMs) remains a formidable challenge. Herein, we develop ultrasound (US)-driven self-decomposition porphyrin as organic and
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Axial enantiomers with donor-regulated TADF feature for multicolor circularly polarized electroluminescence Sci. China Chem. (IF 9.6) Pub Date : 2024-04-07 Chen-Hao Guo, Wen-Long Zhao, Ke-Ke Tan, Wei-Chen Guo, Liheng Feng, Chuan-Feng Chen, Meng Li
This study optimized the TADF feature of axial chiral enantiomers through precise donor engineering, and multicolor CP-TADF was achieved in the axial chiral framework. Three pairs of axial enantiomers with donor-regulated TADF feature, namely (R/S)-TPCBD, (R/S)-DPCBD, and (R/S)-DPACBD, were synthesized by introducing carbazole donors with different substituents onto biphenyl cyanide acceptors. As the
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Cucurbit[8]uril-regulated face-to-face dimerization assembly enhanced photosensitization and photocatalysis Sci. China Chem. (IF 9.6) Pub Date : 2024-04-12 Haigen Nie, Die Hu, Zhiyao Zeng, Yan Fan, Yaxin Zhai, Xin-Long Ni
In water, N,N′-diarylpyridinium thiazolo[5,4-d]thiazole guests (G1–G3) were encapsulated by cucurbit[8]uril (Q[8]) to construct Q[8]3/G2 complexes, in which the encapsulated G molecules exist as an exact face-to-face dimer. These complexation behaviors have been indicated by proton nuclear magnetic resonance (1H NMR) spectroscopy and isothermal titration calorimetry (ITC), and have been confirmed by
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Lactonization of dyes promoted by a coordination cage facilitates cavity-induced chromism as ion mobile detector Sci. China Chem. (IF 9.6) Pub Date : 2024-04-03 Liangliang Zhang, Yu Liang, Zhifeng Xiao, Yuxuan Meng, Jinyi Huang, Xi Lin, Ji Li, Hong-Cai Zhou, Yu Fang
Dye molecules often change colors (so-called “chromism”) according to the environment variation. However, they are rarely induced by a catalytic amount of cavity. Through encapsulation in the cavity of a porous coordination cage (PCC-2), Rhodamine B (1) is transformed from red quinonoid form (1q) into colorless lactone form (1l) in aprotic polar solutions. The μ4-OH groups in the cavity of PCC-2 are
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A case study of comparing two dimerized acceptor molecules built by different branch-connected and terminal-connected approaches Sci. China Chem. (IF 9.6) Pub Date : 2024-03-29 Kangqiao Ma, Huazhe Liang, Yuxin Wang, Tengfei He, Tainan Duan, Xiaodong Si, Wendi Shi, Guankui Long, Xiangjian Cao, Zhaoyang Yao, Xiangjian Wan, Chenxi Li, Bin Kan, Yongsheng Chen
Dimerized small-molecule acceptors (SMAs) built by the conventional connection of terminal groups of monomers have contributed to exciting long-term stabilities of organic solar cells (OSCs). However, device efficiencies, especially fill factors (FFs), still need to be improved. This probably originates from unsymmetrical molecular structure/conformation-determined less compact/ordered molecular stackings
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Supramolecular systems for bioapplications: recent research progress in China Sci. China Chem. (IF 9.6) Pub Date : 2024-03-22 Yue-Yang Liu, Xiao-Yong Yu, Yu-Chen Pan, Hang Yin, Shuang Chao, Yujie Li, He Ma, Minzan Zuo, Kun-Xu Teng, Jun-Li Hou, Yong Chen, Dong-Sheng Guo, Ruibing Wang, Yuxin Pei, Zhichao Pei, Jiang-Fei Xu, Xiao-Yu Hu, Chunju Li, Qing-Zheng Yang, Leyong Wang, Yu Liu, Zhan-Ting Li
Supramolecular systems feature dynamic, reversible and stimuli-responsive characteristics, which are not easily achieved by molecular entities. The last decade has witnessed tremendous advances in the investigations of supramolecular systems for various bioapplications, which include drug delivery, anticancer therapy, antibacterial therapy, photodynamic therapy, photothermal therapy, combination therapy
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Stereoselective synthesis of substituted 1,3-dienes from propargylic esters: electrophilic-metal or redox catalysis? Sci. China Chem. (IF 9.6) Pub Date : 2024-03-22
Abstract 1,3-Diene architectures are not only widely present in natural products, pharmaceuticals, and functional organic materials but also serve as versatile building blocks to furnish important functionalized molecules in synthetic chemistry due to conjugated repeating C=C units. Accordingly, various strategies to access substituted 1,3-dienes in a stereoselective manner have been developed. However
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Selective synthesis of heteroleptic Pd2A3B-cages: modulating size-preference of supramolecular hosts via endo-functionalization Sci. China Chem. (IF 9.6) Pub Date : 2024-03-26 Wen-Tao Dai, Ting-Ting Liu, Qixia Bai, Zhe Zhang, Pingshan Wang, Wei Lu, Qi Zhang
The size complementarity between a host and a guest is a critical prerequisite for selective molecular recognition. Numerous artificial host systems have been designed to achieve size-selective recognition and chemical transformations. However, the inherent challenge lies in the fixed selectivity governed by a size-exclusion mechanism dictated by the host’s structure. Modulating the selectivity necessitates
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Flexible interdigitated layered framework with multiple accessible active sites for high-performance CH3I capture Sci. China Chem. (IF 9.6) Pub Date : 2024-03-26
Abstract The development of adsorbent materials for effective capture of radioactive iodomethane (CH3I) from the off-gas of used nuclear fuel reprocessing, remains a significant and challenging line of research because currently state-of-art adsorbents still suffer from low binding affinity with CH3I. Here, we proposed a brand-new adsorption topological structure by developing a 2D interdigitated layered
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Monophase-homointerface electrodes intrinsically stabilize high-voltage all-solid-state batteries Sci. China Chem. (IF 9.6) Pub Date : 2024-03-25
Abstract The electrochemical stability and contact reliability of heterointerfaces between the solid electrolyte (SE) and electrode are critical for all-solid-state batteries (ASSBs), particularly much more challenging for high-voltage ASSBs, owing to the limited thermodynamically electrochemical window and mechanical inflexibility of SE, aggravating interfacial side reactions and contact failure.
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Efficient overall photosynthesis of H2O2 by the BTz@Mn0.2Cd0.8S S-scheme heterojunction Sci. China Chem. (IF 9.6) Pub Date : 2024-03-25
Abstract The photosynthesis of hydrogen peroxide (H2O2) through the selective 2e− oxygen reduction reaction (ORR) from O2 and H2O stands out as an environmentally sustainable and cost-effective method for generating this essential chemical. Unfortunately, the widespread application of most photocatalysts is impeded by their reliance on sacrificial agents. In this context, we present a noteworthy advancement
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A nitric oxide-triggered hydrolysis reaction to construct controlled self-assemblies with complex topologies Sci. China Chem. (IF 9.6) Pub Date : 2024-03-18
Abstract Hydrolysis reactions are capable of directing the non-equilibrium assembly of biomolecular scaffolds to realize sophisticated structures and functions in natural systems. However, utilizing the proper hydrolysis reactions to construct controlled assemblies with complex topologies is still an arduous challenge in artificial systems and needs to be addressed. Herein, we report a nitric oxide
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Azocalixarenes: a scaffold of universal excipients with high efficiency Sci. China Chem. (IF 9.6) Pub Date : 2024-03-15 Yu-Xin Yue, Yi-Lin Lin, Meng-Meng Chen, Han-Wen Tian, Rong Ma, Ze-Han Wang, Fang-Yuan Chen, Yu-Chen Pan, Dong-Sheng Guo
Excipients are important components of pharmaceutical preparations that affect their quality, safety, and efficacy. Macrocyclic receptors are a family of supramolecular excipients with several advantages, including molecular-level protection, small sizes, fast kinetics of host-guest recognition, and modular construction. With the continuous advances in the medical field, personalized and precision
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Recent advances in chemical protein synthesis: method developments and biological applications Sci. China Chem. (IF 9.6) Pub Date : 2024-03-12 Suwei Dong, Ji-Shen Zheng, Yiming Li, Huan Wang, Gong Chen, Yongxiang Chen, Gemin Fang, Jun Guo, Chunmao He, Honggang Hu, Xuechen Li, Yanmei Li, Zigang Li, Man Pan, Shan Tang, Changlin Tian, Ping Wang, Bian Wu, Chuanliu Wu, Junfeng Zhao, Lei Liu
The central dogma of modern biology underscores the pivotal roles proteins play in diverse biological processes, the study of which necessitates advanced methods to produce proteins with precision and versatility. Chemical protein synthesis, a powerful approach utilizing chemical reactions for the de novo construction of structurally accurate proteins, has emerged as a transformative tool for studying
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Unraveling the evolution of oxygen vacancies in TiO2−x/Cu and its role in CO2 hydrogenation Sci. China Chem. (IF 9.6) Pub Date : 2024-03-11 Ke Wang, Fanxing Zhang, Ning Cao, Ying Bao, Mi Yan, Keping Yan, Pengfei Xie
The remarkable contribution of oxygen vacancies has been revealed by the operando spectroscopies for methanol synthesis from CO2 hydrogeneration on the reducible metal oxide-supported copper catalysts. However, a challenge remains in the intrinsic understanding of the evolution and advantage of oxygen vacancies for methanol synthesis. Here we prepare the TiO2−x/Cu with different oxygen vacancy densities
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Confined Mn2+ enables effective aerobic oxidation catalysis Sci. China Chem. (IF 9.6) Pub Date : 2024-03-11 Desheng Yuan, Sicong Ma, Xiao Kong, Chi Zhang, Lin Chen, Chengsheng Yang, Lihua Wang, Zhen Liu, Lin Ye, Yongmei Liu, Rui Ma, Zhi-Pan Liu, Yifeng Zhu, Yong Cao, Xinhe Bao
Effective and mild activation of O2 is essential but challenging for aerobic oxidation. In heterogeneous catalysis, high-valence manganese oxide (e.g., +4) is known to be active for the oxidation, whereas divalent MnO is ineffective due to its limited capacity to supply surface oxygen and its thermodynamically unstable structure when binding O2 in reaction conditions. Inspired by natural enzymes that
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Azobenzene-based ultrathin peptoid nanoribbons for the potential on highly efficient artificial light-harvesting Sci. China Chem. (IF 9.6) Pub Date : 2024-03-14
Abstract The development of artificial light-harvesting systems based on long-range ordered ultrathin organic nanomaterials (i.e., below 3 nm), which were assembled from stimuli-responsive sequence-controlled biomimetic polymers, remains challenging. Herein, we report the self-assembly of azobenzene-containing amphiphilic ternary alternating peptoids to construct photo-responsive ultrathin peptoids
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Anion-hosting cathodes for current and late-stage dual-ion batteries Sci. China Chem. (IF 9.6) Pub Date : 2024-03-06
Abstract Anion-hosting cathodes capable of reversibly storing large-size anions play a leading role in dual-ion batteries (DIBs). The purpose of the present review is to summarize the most promising anion-hosting cathodes for current and late-stage DIBs. This review first summarizes the developments in conventional graphite cathodes, especially the latest advances in the graphite-related research.
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A universal performance-enhancing method for Li-S batteries: the cathode material of Li2S@Li2S2@Li2S6 double-shell structure Sci. China Chem. (IF 9.6) Pub Date : 2024-03-06 Shunjin Yang, Yujiang Sun, Qiaran Zhang, Xiaohu Hu, Xing Chen, Guoran Li, Xiao Sun, Yuzhe Zhang, Shijie Xu, Xinyu Wang, Yongan Yang
Lithium sulfide (Li2S) as a cathode material for lithium-sulfur (Li-S) batteries, one of the most promising advanced batteries in the future, has received tremendous attention in the past decades. However, developing the practical Li2S cathode confronts challenges of low conductivity for Li-ions and electrons, high sensitivity to environmental moisture, big overpotential barrier to electrochemical
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Co-electrolysis of ethylene glycol and carbon dioxide for formate synthesis Sci. China Chem. (IF 9.6) Pub Date : 2024-03-06 Dongfeng Du, Fusong Kang, Shiru Yang, Bin Shao, Jingshan Luo
Co-electrolysis of waste plastics and carbon dioxide (CO2) into value-added chemicals or fuels is a promising pathway for a sustainable society, but efficient and selective conversion remains a challenge. Herein, a gold-mediated nickel hydroxide (Au/Ni(OH)2) is developed to oxidize waste plastic-derived ethylene glycol (EG) into formate. In-situ electrochemical experiments and theoretical results reveal
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Simultaneous acceleration of sulfur reduction and oxidation on bifunctional electrocatalytic electrodes for quasi-solid-state Zn–S batteries Sci. China Chem. (IF 9.6) Pub Date : 2024-03-05 Mingli Wang, Hong Zhang, Tianhang Ding, Fangjun Wu, Lin Fu, Bin Song, Pengfei Cao, Ke Lu
The incomplete sulfur reduction and high ZnS re-oxidation energy barrier along with severe side reactions during the battery cycling compromise the practical application of Zn–S electrochemistry. Herein, a bifunctional electrocatalytic sulfur matrix that simultaneously accelerates the sulfur reduction and ZnS oxidation is proposed to realize a highly-efficient Zn–S cell. It is revealed that the N-heteroatom
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Regulating the crystal phase of bismuth-based semiconductors for promoted photocatalytic performance Sci. China Chem. (IF 9.6) Pub Date : 2024-03-05 Zhaohui Wu, Mei-Chi Chong, Shiying Zhang, Junshan Li, Yongfa Zhu
Numerous bismuth-based semiconductors (BBSs) with sophisticated and desirable structures used as photocatalysts for efficient photocatalytic degradation of water organic contaminants have attracted considerable attention. However, regulating the crystal phases and phase transition of BBSs for promoted photocatalytic performance is ignored. Herein, the unique crystal structure and band structure features
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Research progress in non-aqueous low-temperature electrolytes for sodium-based batteries Sci. China Chem. (IF 9.6) Pub Date : 2024-03-05 Jinyu Yang, Mingxu Wang, Jiafeng Ruan, Qin Li, Jibo Ding, Fang Fang, Fei Wang
With the increasing demand and striking upsurge in the price of lithium carbonate, sodium-ion batteries (SIBs) have gained significant attentions due to their abundance over lithium-ion batteries (LIBs). Some prototype SIBs have achieved great progress in terms of energy densities. Although SIBs show a relatively higher tolerance at the low temperature than LIBs due to the weaker cation–solvent interaction
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Photoredox catalytic alkylarylation of alkynes with arylsulfonylacetate as bifunctional reagent Sci. China Chem. (IF 9.6) Pub Date : 2024-03-07 Chonglong He, Min Wang, Yulong Wang, Lirong Zhao, Youkang Zhou, Keyuan Zhang, Shenyu Shen, Yaqiong Su, Xin-Hua Duan, Le Liu
Difunctionalization of alkynes represents a powerful and straightforward approach to the synthesis of complex molecules. However, the radical difunctionalization of alkynes mediated by bifunctional reagents remains challenging and underexplored, despite significant progress having been made in alkene difunctionalization. Here, we report a novel arylsulfonylacetate skeleton in which aryl rings are attached
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Oxygenic iron clusters in ZSM-5 zeolite promote quantum sieving of gaseous hydrogen isotopes Sci. China Chem. (IF 9.6) Pub Date : 2024-03-07 Jingjing Zhang, Yongyan Deng, Dongxu Gai, Yang Shi, Xingwen Feng, Peilong Li, Yongtao An, Xiaoqin Zou
Isotopic separation is of paramount importance for producing high-purity heavy hydrogen, yet the process remains hugely challenging. Here, we report on an Fe/ZSM-5 zeolite that was able to efficiently separate deuterium from protium via chemical quantum sieving. Structural data showed that four types of Fe species were present in Fe/ZSM-5 and oligomeric Fe–O clusters in the zeolite pores were correlated
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An electron-transfer [Fe2Co2] square complex exhibiting unprecedented wide room-temperature hysteresis Sci. China Chem. (IF 9.6) Pub Date : 2024-03-06 Xin-Hua Zhao, Yi-Fei Deng, Jia-Tao Chen, Jiong Yang, Yuan-Zhu Zhang
Switchable molecules with magnetic bistability that can function at standard conditions are highly desirable from the perspective of practical applications. Over the last decade, significant progress has been made in modulating thermally induced electron-transfer-coupled spin transition (ETCST) events between diamagnetic {FeIILS(μ-CN)CoIIILS} and paramagnetic {FeLS(μ-CN)-CoIIHS} electron configurations
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Supramolecular polymer network constructed by a functionalized polyimidazolium salt derived from metal-carbene template approach Sci. China Chem. (IF 9.6) Pub Date : 2024-03-05 Ming-Ming Gan, Zi-En Zhang, Yi-Fan Zhang, Heng Zhang, Li-Ying Sun, Ying-Feng Han
In this study, we present a supramolecular templating approach for constructing polyimidazolium salt containing crown ether and cyclobutane moieties. This strategy involves the formation of metal-carbene templates, photochemical cycloaddition, and subsequent demetallation of metal ions. Driven by the host-guest chemistry between crown ether units and ammonium salts, we successfully fabricated a supramolecular
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Direct enantioselective reduction of C=C bond of β-polyfluoro-alkylated enones via asymmetric photoredox catalysis Sci. China Chem. (IF 9.6) Pub Date : 2024-03-01
Abstract Direct enantioselective reduction of the C=C bond of β-polyfluoro-alkylated enones is an important but long-pending subject in asymmetric catalysis. Here, we report on the viability of visible light-driven cooperative photoredox and chiral hydrogen-bonding catalysis to effectively address this challenge, as a variety of products are obtained in high yields (up to 85%) with good to excellent
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Chiral thermally activated delayed fluorescence materials for circularly polarized organic light-emitting diodes Sci. China Chem. (IF 9.6) Pub Date : 2024-02-26 Li Yuan, Yi-Pin Zhang, You-Xuan Zheng
Chirality is an important natural characteristic of organic molecules, and chiral organic molecules have shown extensive application in areas such as pharmaceutical development and material science. Benefiting from the ability to achieve circularly polarized luminescence (CPL), chiral luminescent materials have shown potential applications in anti-glare display, optical communication and, 3D display
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MOF-based magnetic microrobot swarms for pH-responsive targeted drug delivery Sci. China Chem. (IF 9.6) Pub Date : 2024-02-22
Abstract Metal-organic frameworks (MOFs) hold significant potential as vehicles for drug delivery due to their expansive specific surface area, biocompatibility, and versatile attributes. Concurrently, magnetically actuated micro/nano-robots (MNRs) offer distinct advantages, such as untethered and precise manipulation. The fusion of these technologies presents a promising avenue for achieving non-invasive
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Rational molecular design of efficient yellow-red dendrimer TADF for solution-processed OLEDs: a combined effect of substitution position and strength of the donors Sci. China Chem. (IF 9.6) Pub Date : 2024-02-21
Abstract The development of high-performance solution-processed red organic light-emitting diodes (OLEDs) remains a challenge, particularly in terms of maintaining efficiency at high luminance. Here, we designed and synthesized four novel orange-red thermally activated delayed fluorescence (TADF) dendrimers that are solution-processable: 2GCzBP, 2DPACzBP, 2FBP2GCz and 2FBP2DPACz. We systematically
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Multi-stimuli-responsive aggregation-induced emission copper iodide cluster Sci. China Chem. (IF 9.6) Pub Date : 2024-02-21 Bo Li, Yuan-Yuan Liu, Peng Luo, Ye-Ru Liu, Ying-Jun Chen, Kai Li, Shuang-Quan Zang
Stimuli-responsive luminescent materials have attracted significant attention in the development of smart photoactive materials for both fundamental research and technological applications. In this work, a new copper iodide cluster (1) with aggregation-induced emission (AIE) characteristic, was obtained combining Cu4I4 core with rhodamine B derivative ligand. 1 has reversible and distinct multi-stimuli-responsive
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The first chiral cerium halide towards circularly-polarized luminescence in the UV region Sci. China Chem. (IF 9.6) Pub Date : 2024-02-07
Abstract Chiral organic-inorganic hybrid metal halides (OIHMHs) have attracted broader scientific community recently in spin light-emitting diodes, and circularly polarized light-emitting diodes. However, the emission peaks of the reported chiral OIHMHs mainly locate in the visible region, and chiral OIHMH with ultraviolet (UV) circularly polarized luminescence (CPL) has been rarely reported. To fill
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Electric-field-controlled highly regioselective thiocyanation of N-containing heterocycles Sci. China Chem. (IF 9.6) Pub Date : 2024-02-07 Ming Gong, Qian Wu, Jung Keun Kim, Mengmeng Huang, Yabo Li, Yangjie Wu, Jong Seung Kim
Achieving highly regioselective synthesis in organic chemistry is challenging due to the uncontrollable orientation between reacting partners. External electric fields (EEFs) can influence the reactivity and selectivity of the substrate by causing directional adsorption. However, scalable and efficient techniques for using EEFs as “smart catalysts” have been lacking, hindering their application. In
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Tuning the local coordination environment of silver(I) coordination networks with counterions for enhanced electrocatalytic CO2 reduction Sci. China Chem. (IF 9.6) Pub Date : 2024-02-04 Xiaofeng Cui, Xueting Wang, Cong Fu, Bing Liu, Mei-Yan Gao, Tingting Kong, Yujie Xiong
Very recently, the local coordination environment of active sites has been found to strongly influence their performance in electrocatalytic CO2 reduction by tuning the intrinsic kinetics of CO2 activation and intermediate stabilization. It is imperative to elucidate the mechanism for such an influence towards the rational design of efficient catalysts; however, the complex interactions between the
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Surficial modification enabling planar Al growth toward dendrite-free metal anodes for rechargeable aluminum batteries Sci. China Chem. (IF 9.6) Pub Date : 2024-02-04 Wenhao Liu, Yu Li, Bo Long, Haoyi Yang, Lumin Zheng, Ying Bai, Feng Wu, Chuan Wu
Al metal possesses ultrahigh theoretical volumetric capacity of 8,040 mAh cm−3, and gravimetric capacity of 2,980 mAh g−1, and thus is highly attractive for electrochemical energy storage. However, it suffers from several issues, such as the dendrite formation, during Al stripping–deposition cycling, which has been verified to account for the short circuit and limited cyclic performance. Herein, we
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Room-temperature ferrimagnetism and size-modulated electronic structures in two-dimensional cluster-based metal-organic frameworks Sci. China Chem. (IF 9.6) Pub Date : 2024-01-29 Jing Cheng, Xingxing Li, Jinlong Yang
Cluster-assembled materials have attracted particular attention for their complex hierarchical structures and unique properties. However, the majority of cluster-based assemblies developed so far are either non-magnetic or only exhibit magnetic ordering with a relatively low Curie temperature, limiting their applications in spintronics. Thus, two-dimensional (2D) cluster-assembled materials with room-temperature
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Co-aromatization of methane and hexane over Pt encapsulated in ZSM-5 zeolite and the electronic effect of K promoters Sci. China Chem. (IF 9.6) Pub Date : 2024-01-23 Bei Liu, Fan Wang, Xiaomeng Dou, Pengfei Li, Hongwei Xiang, Yong Yang, Peng He
The co-aromatization of methane with higher hydrocarbons represents a promising route to valorize methane, an abundant but underexploited carbon resource. In this study, we elucidate a novel approach to enhance the catalytic co-aromatization of hexane and methane by confining Pt within zeolite catalysts and modulating its electron density. Our findings show that encapsulating Pt within MFI structure
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Nickel-modified In2O3 with inherent oxygen vacancies for CO2 hydrogenation to methanol Sci. China Chem. (IF 9.6) Pub Date : 2024-01-23 Zixuan Zhou, Yuchen Wang, Yuanjie Bao, Haiyan Yang, Jiong Li, Chunran Chang, Shenggang Li, Peng Gao
Methanol synthesis is one of the most important industrially-viable approaches for carbon dioxide (CO2) utilization, as the produced methanol can be used as a platform chemical for manufacturing green fuels and chemicals. The In2O3 catalysts are ideal for sustainable methanol synthesis and have received considerable attention. Herein, Co-, Ni- and Cu-modified In2O3 catalysts were fabricated with high
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Advanced cellulose-based materials toward stabilizing zinc anodes Sci. China Chem. (IF 9.6) Pub Date : 2024-01-23 Zhijiang Li, Xiang Chen, Rui Zhang, Taoyi Shen, Jianchao Sun, Zhongce Hu, Lin Li, Lanlan Yang, Hou-Yong Yu
Rechargeable aqueous zinc metal batteries (RAZMBs) have received extensive attention for large-scale energy storage systems due to the merits of Zn anodes, including moderate volumetric and gravimetric energy density, low redox potential, abundant reserve, low cost and impressive intrinsic safety. However, Zn anodes suffer from a series of adverse reactions (dendrite growth, hydrogen evolution, and
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Illuminating spin-crossover octanuclear metal-organic cages Sci. China Chem. (IF 9.6) Pub Date : 2024-01-25 Zhi-Kun Liu, Alyona A. Starikova, Yu-Xia Li, Ke Sun, Meng Yu, Zi-Shuo Yao, Jun Tao
Spin-crossover (SCO) materials that reversibly switch between high- and low-spin states have potential for the storage of spin state-relative information, and have gained much attention incorporating secondary physical properties, such as fluorescence and magneto-optical switching. In this study, we synthesized three octanuclear metal-organic cages (MOCs) using tetra-phenylethylene-based luminophores
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Cyclic-acyclic monomers metathesis polymerization to access photodegradable polydicyclopentadiene and polyethylene-like materials Sci. China Chem. (IF 9.6) Pub Date : 2024-01-25
Abstract The development of degradable and recyclable polymers is an attractive strategy to tackle the post-consumption pollution issue of commercial plastics. Cyclic-acyclic monomers metathesis polymerization (CAMMP) has been recently reported to produce degradable thermoset, thermoplastic and elastomeric polymers, and their degradability is enabled with addition of various chemicals. In this contribution
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Heptagonal intramolecular-lock strategy enables high-performance thermally activated delayed fluorescence emitters Sci. China Chem. (IF 9.6) Pub Date : 2024-01-19 Zhenmei Huang, Dezhi Yang, Dongge Ma, Zhengyang Bin, Jingsong You
The development of highly efficient thermally activated delayed fluorescence (TADF) emitters is persistently pursued for the application of organic light-emitting diodes (OLED) in full-colour display and solid-state lighting. Herein, we present a heptagonal intramolecular-lock strategy to design high-performance TADF emitters. As a proof-of-concept, a new type of tribenzotropone (TBP) acceptor has
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Activity promotion of Rh1Cax/Al2O3 single-atom catalyst in 1-octene hydroformylation: a volcano curve exists between Ca adding ratio and catalytic activity Sci. China Chem. (IF 9.6) Pub Date : 2024-01-18
Abstract Single-atom catalysts (SACs) are considered the best candidates for olefin hydroformylation due to their combined advantages of homogeneous and heterogeneous catalysts. Unlike conventional organo-phosphine modification, Rh SAC is modified by introducing Ca, resulting in a significant increase in activity (maximum ∼5.7-fold) and stability. Furthermore, a volcano curve between Ca addition ratio
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Strain-promoted S-arylation and alkenylation of sulfinamides using arynes and cyclic alkynes Sci. China Chem. (IF 9.6) Pub Date : 2024-01-15 Xi Zou, Boming Shen, Gao-lin Li, Qian Liang, Yanhua Ouyang, Binghe Yang, Peiyuan Yu, Bing Gao
The conversion of commercially available chiral sulfinamides into pharmaceutically useful chiral sulfoximines via direct SIV-functionalization is synthetically attractive but challenging due to the competitive reaction of N-functionalization. Herein, we disclose a novel strain-release strategy to access stereospecific and chemoselective SIV-arylation and alkenylation of sulfinamides using arynes and
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Regulating atomic Fe–Rh site distance for efficient oxygen reduction reaction Sci. China Chem. (IF 9.6) Pub Date : 2024-01-15 Tong Liu, Yudan Chen, Airong Xu, Xiaokang Liu, Dong Liu, Sicheng Li, Hui Huang, Li Xu, Shuaiwei Jiang, Qiquan Luo, Tao Ding, Tao Yao
Exploring the atomic interaction mechanisms of dense single-atom catalysts (SACs) is of great significance for their application in oxygen reduction reaction (ORR). However, the intrinsic mechanism of the site-distance effect on the catalytic performance has been largely ignored. Here, we demonstrate the site-distance effect of Fe–Rhx@NC catalysts in ORR theoretically and experimentally. Bader charge
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Generation, bonding and reactivity of transient zinc-substituted silylenes Sci. China Chem. (IF 9.6) Pub Date : 2024-01-09 Cheng Xu, Thayalan Rajeshkumar, Laurent Maron, Xuebing Leng, Yaofeng Chen
The metal-substituted silylenes are of high interest, as the theoretical studies indicated that the silylenes with electropositive substituents have a small ΔES−T (singlet-triplet energy gap) or even the ground-state triplets. However, such compounds are highly unstable, and only two transient alkali metal-substituted silylenes M(tBu3Si)Si: (M = Li, K) were generated by photoextrusion of the alkali