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An update for brain–computer interfaces Nat. Electron. (IF 33.7) Pub Date : 2024-09-25
Advances in sensors, electrodes and probes are helping to expand the capabilities of brain–computer interfaces.
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Theoretical Description of Pump-Probe Experiments in Charge-Density-Wave Materials out to Long Times Phys. Rev. X (IF 11.6) Pub Date : 2024-09-25 Marko D. Petrović, Manuel Weber, James K. Freericks
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Author Correction: A microspectrometer with dual-signal spectral reconstruction Nat. Electron. (IF 33.7) Pub Date : 2024-09-24 Xinchuan Du, Yang Wang, Yi Cui, Gaofeng Rao, Jianwen Huang, Xinrui Chen, Ting Zhou, Chunyang Wu, Zongyin Yang, Hanxiao Cui, Yicheng Zhao, Jie Xiong
Correction to: Nature Electronics https://doi.org/10.1038/s41928-024-01242-9, published online 17 September 2024.
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Hybrid multimodal wearable sensors for comprehensive health monitoring Nat. Electron. (IF 33.7) Pub Date : 2024-09-23 Kuldeep Mahato, Tamoghna Saha, Shichao Ding, Samar S. Sandhu, An-Yi Chang, Joseph Wang
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A self-filtering liquid acoustic sensor for voice recognition Nat. Electron. (IF 33.7) Pub Date : 2024-09-23 Xun Zhao, Yihao Zhou, Aaron Li, Jing Xu, Shreesh Karjagi, Edward Hahm, Lara Rulloda, Justin Li, John Hollister, Pirouz Kavehpour, Jun Chen
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Exploring the Strong Interaction of Three-Body Systems at the LHC Phys. Rev. X (IF 11.6) Pub Date : 2024-09-24 S. Acharyaet al.(ALICE Collaboration)
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Spontaneous Brain Activity Emerges from Pairwise Interactions in the Larval Zebrafish Brain Phys. Rev. X (IF 11.6) Pub Date : 2024-09-23 Richard E. Rosch, Dominic R. W. Burrows, Christopher W. Lynn, Arian Ashourvan
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The dependence of Zener-Hollomon parameter on softening behavior and dynamic recrystallization mechanism of a biodegradable Zn-Cu-Mg alloy Int. J. Plasticity (IF 9.4) Pub Date : 2024-09-21 Peng Pan, Chao Chen, Guohua Wang, Kao Ning, Zhongliang Shu, Jiaqi Zhang, Taomei Zhang, Dan Li, Lu Gao, Zhaowen Geng, Li Song, Weimin Zou, Yingzhe Zhang, Jianling Liu, Kechao Zhou
The Zn-Cu-Mg alloy exhibits good strength, ductility, anti-aging and antibacterial properties, which lays the foundation for developing high performance Zn-based biodegradable alloys. However, the constitutive equation and dynamic recrystallization (DRX) behavior of this alloy remain unclear, making the optimization of hot processing parameters almost dependent on trial and error. This work aims to
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Dynamics of Active Defects on the Anisotropic Surface of an Ellipsoidal Droplet Phys. Rev. X (IF 11.6) Pub Date : 2024-09-20 Martina Clairand, Ali Mozaffari, Jerôme Hardoüin, Rui Zhang, Claire Doré, Jordi Ignés-Mullol, Francesc Sagués, Juan J. de Pablo, Teresa Lopez-Leon
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Flexible strain gauges that can be picked and placed Nat. Electron. (IF 33.7) Pub Date : 2024-09-18 Matthew Parker
Each sensor consists of multiple micro-strain gauges containing a stressed layer of silicon dioxide that, after the stress is released by dissolving a sacrificial layer, deforms into a three-dimensional geometry. Thin metal or alloy wires on the strain gauges can measure normal force, shear force and temperature. Because the sensors are made by standard processes used in microelectromechanical system
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Two-dimensional transistors heat up Nat. Electron. (IF 33.7) Pub Date : 2024-09-18 Stuart Thomas
The researchers — who are based at the Institute of Metal Research in Shenyang China, the University of Science and Technology of China, Peking University and the Shenzhen Institute of Advanced Technology — fabricated micrometre-scale devices using a p-type germanium substrate as the current collector and two separate monolayer graphene emitter and base layers placed on top. Under bias, stimulated
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A sense of touch without skin Nat. Electron. (IF 33.7) Pub Date : 2024-09-18 Katharina Zeissler
The researchers — who are based at the German Aerospace Center and Technical University of Munich — created a mechatronic design for sensing redundancy, where the number of sensor measurements exceeds the number of possible motions of the robotic arm, and combined it with a momentum-based monitoring method to provide the arm with an intrinsic sense of touch across its surface. Two force-torque sensors
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Magnesium niobate as a high-κ gate dielectric for two-dimensional electronics Nat. Electron. (IF 33.7) Pub Date : 2024-09-18 Cheng-Yi Zhu, Meng-Ru Zhang, Qing Chen, Lin-Qing Yue, Rong Song, Cong Wang, Hui-Zhen Li, Feichi Zhou, Yang Li, Weiwei Zhao, Liang Zhen, Mengwei Si, Jia Li, Jingli Wang, Yang Chai, Cheng-Yan Xu, Jing-Kai Qin
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Superconducting thin films of [formula omitted][formula omitted][formula omitted][formula omitted] with zero-resistance transition temperature close to 100 K Mater. Today Phys. (IF 10.0) Pub Date : 2024-09-18 Meng-Jun Ou, Yuecong Liu, Yi Wang, Hai-Hu Wen
High superconducting transition temperature is favorable for the applications of superconductors. Some cuprate superconductors have the transition temperatures above 100 K, such as the Hg- or Tl-based 1223 and 1234 phases, but many of them contain the toxic elements, like Hg and Tl. Meanwhile, the anisotropy of upper critical field or the effective mass of above mentioned Hg-, Tl-based systems, or
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A highly conductive and superhydrophobic PEDOT: PSS@PDMS@SiO2 coated melamine foam for pressure monitoring and high-accuracy human motion recognition using deep-learning methods Appl. Surf. Sci. (IF 6.3) Pub Date : 2024-09-18 Si Sun, Li-De Guo, Xi Shu, Yang-Tao Wang, Yan-Zhao Xie, Qian-Ru Xiao, Xiao-Long Shi
Constructing high-performance wearable sensors with multifunctional properties and low cost is of great importance. In this work, a multifunctional wearable sensor with highly conductive and superhydrophobic properties was fabricated using commercially available melamine foam as cheap substrate. The sensor was prepared by simply coating the melamine foam with poly(3,4-ethylenedioxythiophene)-poly (styrene
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Enhanced oxygen evolution on A-site defect perovskite oxide through interfacial engineering Appl. Surf. Sci. (IF 6.3) Pub Date : 2024-09-18 Wenli Kang, Haoran Guo, Zhouhang Li, Hua Wang, Tao Zhu, Xing Zhu, Kongzhai Li, Zhishan Li
Perovskite oxides are emerging as promising alternative to precious metal-based electrocatalysts for oxygen evolution reactions. Despite their potential, their catalytic activity is often insufficient for practical applications. In this study, we demonstrate that introducing A-site defects in LaNiO3 perovskite oxides promotes B-site exsolution during the reduction process. Subsequent chemical vapor
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First-principles study of Ti adsorption on Al4C3 (0001) surface Appl. Surf. Sci. (IF 6.3) Pub Date : 2024-09-18 Fei Wang, Maoliang Hu, Bo Jiang, Pengxing Cui, Hongyu Xu, Ye Wang, Zesheng Ji
Al4C3 phase is hypothesized to undergo a solid–solid phase transition into TiC, thereby facilitating the heterogeneous nucleation of α-Al. However, capturing this transition process experimentally is challenging, which undermines the credibility of this transition theory. In this study, first-principles calculations are employed to investigate the feasibility of Ti atom adsorption on the exposed (0001)
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Statistics of Matrix Elements of Local Operators in Integrable Models Phys. Rev. X (IF 11.6) Pub Date : 2024-09-17 F. H. L. Essler, A. J. J. M. de Klerk
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Anderson Localization of Walking Droplets Phys. Rev. X (IF 11.6) Pub Date : 2024-09-17 Abel J. Abraham, Stepan Malkov, Frane A. Ljubetic, Matthew Durey, Pedro J. Sáenz
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Characterization and Exploitation of the Rotational Memory Effect in Multimode Fibers Phys. Rev. X (IF 11.6) Pub Date : 2024-09-16 Rodrigo Gutiérrez-Cuevas, Arthur Goetschy, Yaron Bromberg, Guy Pelc, Esben Ravn Andresen, Laurent Bigot, Yves Quiquempois, Maroun Bsaibes, Pierre Sillard, Marianne Bigot, Ori Katz, Julien de Rosny, Sébastien M. Popoff
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A microspectrometer with dual-signal spectral reconstruction Nat. Electron. (IF 33.7) Pub Date : 2024-09-17 Xinchuan Du, Yang Wang, Yi Cui, Gaofeng Rao, Jianwen Huang, Xinrui Chen, Ting Zhou, Chunyang Wu, Zongyin Yang, Hanxiao Cui, Yicheng Zhao, Jie Xiong
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Achieving superior strength-ductility balance by tailoring dislocation density and shearable GP zone of extruded Al-Cu-Li alloy Int. J. Plasticity (IF 9.4) Pub Date : 2024-09-17 Xuanxi Xu, Guohua Wu, Xin Tong, Liang Zhang, Cunlong Wang, Fangzhou Qi, Xiaopeng Zeng, Youjie Guo
Pre-stretching is commonly employed to accelerate ageing precipitation kinetics in wrought Al-Cu-Li alloys, but uneven precipitation resulting from dislocation pile-ups often degrades ductility. Herein, the strength and ductility of extruded Al-Cu-Li alloy are significantly improved through a novel thermomechanical treatment, involving pre-ageing and pre-stretching, followed by low-temperature interrupted
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Fabrication of abundant oxygen vacancies in MOF-derived (Fe,Co)3O4 for oxygen evolution reaction and as an air cathode for zinc-air batteries Appl. Surf. Sci. (IF 6.3) Pub Date : 2024-09-17 Jiapeng Wang, Xinpeng Chen, Hua-Bin Yuan, Lili Xing, Desheng Sha, Aijing Li, Guoqiang Chen, Tieling Xing
Metal-organic frameworks (MOFs) find wide-ranging applications owing to their adjustable structures, diverse compositions, and large specific surface area. In this work, MOFs materials were grown in situ on carbon cloth, yielding self-supported electrodes VO-(Fe,Co)3O4@CC rich in oxygen vacancies through a simple high-temperature annealing treatment utilizing NaBH4 as an etchant. Thus the resulting
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Low-carbon upcycling of spent anode graphite: Integrating graphene and dislocations for sustainable lithium/potassium storage Appl. Surf. Sci. (IF 6.3) Pub Date : 2024-09-17 Yixuan Su, Hongjie Chen, Yucong Chen, Jia Li, Mingjun Wu, Yao Cheng, Qiang Ru
Nowadays, the recycling and sustainable energy storage techniques of spent rechargeable batteries have garnered tremendous passion and scrutiny on account of the escalating environmental crisis and energy shortage. This study presents a facile and green method for upcycling graphite from spent lithium-ion batteries. Unlike conventional high-temperature calcination approaches, our technique leverages
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Fluoropyridine modulated local charge distribution of carbon nitride to facilitate photocatalytic oxidative γ-valerolactone production Appl. Surf. Sci. (IF 6.3) Pub Date : 2024-09-17 Conghao Ku, Jiansheng He, Pengxin Yu, Jinglong Chen, Weiran Yang
Synthesis of γ-valerolactone (GVL) from renewable biomass resources under mild reaction condition with metal-free catalysis is attractive but challenging. Herein, a novel porous fluoropyridine-incorporated carbon nitride (FPCN) was constructed and applied for photocatalytic oxidation of biomass-based 5-methyltetrahydrofurfural alcohol (5-MTHFA) to GVL. The catalyst exhibits excellent photocatalytic
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Enhanced photocatalytic degradation of organic dyes by dual heterojunction of ZnO/NiWO4/V2C MXene Appl. Surf. Sci. (IF 6.3) Pub Date : 2024-09-17 Weibing Zhou, Lilong Sun, Shiqiao Xiang, Shouqin Tian
Multiphase composite catalysts can be designed for efficient photocatalytic treatment of organic pollutants in wastewater. Herein, the multiphase ZnO/NiWO4/V2C composite catalysts with dual heterojunction and hierarchically assembled nanoflower structures were constructed via a facile two-step hydrothermal and electrostatic self-assembly method. Utilizing NiWO4 and V2C as co-catalysts, these catalysts
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Enhancement of photocatalytic degradation of ciprofloxacin via constructing conductive matrix Appl. Surf. Sci. (IF 6.3) Pub Date : 2024-09-17 Shi-Ming Niu, Xin-Hui Li, Hao-Yang Ding, Wo-Long Wang, Peng-Fei Li, Xia-Chen Zheng, Min-Hua Cui
The application of heterogeneous photocatalysts is severely limited by the high charge transfer resistance (Rct). BiVO4/g-C3N4 photocatalysts were prepared and loaded on the conductive matrix material carbon paper (CP) to reduce electron transfer resistance and improve the photocatalytic performance. The Rct of BiVO4/g-C3N4@CP was remarkedly reduced by 94.3 % compared to the photocatalysts on the oil
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Crack-tip cleavage/dislocation emission competition behaviors/mechanisms in magnesium: ALEFM prediction and atomic simulation Int. J. Plasticity (IF 9.4) Pub Date : 2024-09-16 Jia-ping Ma, Lin Yuan, Ying-ying Zong, Ming-yi Zheng, De-bin Shan, Bin Guo
Structural properties and reliability of materials can be improved by increasing fracture toughness. At the atomic scale, the fracture is a material separation process, and the fracture toughness of materials is associated with the atomic-scale crack-tip behaviors/mechanisms. The crack-tip behaviors are relevant to the energy state of atoms in the system. Atomic thermal oscillation increases with increasing
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Electronic regulation of Ce,F-Ni2P/CoP catalyst for efficient water splitting Appl. Surf. Sci. (IF 6.3) Pub Date : 2024-09-16 Jing Peng, Yucheng Wu, Ning Long, Wei Shen, Yimin Jiang, Rongxing He, Ming Li
Designing efficient non-precious-metal bifunctional electrocatalysts is still challenging at present. Herein, the efficient Ce,F-Ni2P/CoP electrocatalyst for water splitting was successfully fabricated. As shown from the present investigation, the codoping of Ce and F in Ni2P/CoP induced the f-p-d gradient orbital coupling in the Ce-F-metal structural unit of the catalyst, significantly reducing the
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Zn-doped CuSe Nano cones as an efficient catalyst for photodegradation of imidacloprid- a commonly used pesticide Appl. Surf. Sci. (IF 6.3) Pub Date : 2024-09-16 Ambreen Ashraf, Saadia Rashid Tariq, Ghayoor Abbas Chotana
The present study focused on using Zn-doped CuSe nanomaterial for the complete mineralization of imidacloprid to ensure a pollutant-free and innocuous environment. Imidacloprid is an emergent contaminant with varying harmful effects on several non-target organisms, including humans. The Zn-doped CuSe nano-cones were prepared by using simple ion exchange and chemical precipitation methods and characterized
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Sol-gel hydrothermal synthesis of lead-free BT nanoparticles for enhanced dielectric properties in PVDF nanocomposites Appl. Surf. Sci. (IF 6.3) Pub Date : 2024-09-16 Olfa Turki, Ahmed Slimani, Sami Boufi, Laurence Seveyrat, Veronique Perrin, Rached Ben Hassen, Hamadi Khemakhem
In the present work BaTiO3 nanoparticles (NPs) with different sizes from 150 to 400 nm were prepared by sol–gel hydrothermal method at a temperature lower than 220 °C, and were used as nanofiller for PVDF composites with a loading from 10 to 25 vol%. The morphology of the BT NPs was analyzed by Scanning Electron Microscopy (SEM), and the structural composition was studied by Raman spectroscopy and
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Construction of immobilized spherical TS-1 molecular sieve membranes using oriented aggregation of nanocrystals Appl. Surf. Sci. (IF 6.3) Pub Date : 2024-09-15 Yichuan Li, Xinyan Zhang, Mingxing Luan, Yuntong Zhao, Shibin Feng, Zhaosheng Yang, Bin Liu, Yongming Chai
Molecular sieve membranes are widely used in separation and catalysis due to their good chemical and thermal stability, resistance to contamination, long life, and easy modification. Although immobilized molecular sieve membranes combine catalytic reactivity with recycling separation properties, preparing high-performance TS-1 molecular sieve membrane catalysts is still challenging. In this study,
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Construction of S/Sv-ZnIn2S4 heterojunction for significantly enhanced photocatalytic degradation of TBBPA Appl. Surf. Sci. (IF 6.3) Pub Date : 2024-09-15 Ya-Ge Liu, Zhenyu Han, Jiale Shi, Yibing Jia, Ruixue Zhang, Yalin Wang, Jiawei Hou, Xiaochun Liu, Hongna Zhang, Hai-Ying Jiang
Composites consisting of singlet S and sulfur vacancy − rich ZnIn2S4 (S/SV-ZnIn2S4) synthesized by a solvothermal method. The singlet S, grows on the surface of ZnIn2S4, forms a type II heterojunction with ZnIn2S4 to promote the separation of the photocarriers. The doping of sulfur vacancies (SV) enhanced the absorption of the catalyst in the visible region, promoted the generation and separation of
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A durable superhydrophobic surface with bud-particle structure prepared by one-step spray method Appl. Surf. Sci. (IF 6.3) Pub Date : 2024-09-15 Zhitao Huang, Shicai Zhu, Manfu Zhu, Yu Tian, Liran Ma
Superhydrophobic surfaces play an essential role in numerous applications such as anti-fouling, waterproofing, and drag reduction due to their water-repellent. However, for most fabrication methods, there are high requirements for the preparation process and conditions. Meanwhile, the superhydrophobic surfaces generally have the problem of insufficient durability. In this study, a one-step method to
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Study on flotation behavior and mechanism of galena flotation separation from chalcopyrite by sodium periodate depressant Appl. Surf. Sci. (IF 6.3) Pub Date : 2024-09-15 Yanling Jin, Haiyun Xie, Liuyang Dong, Peilun Shen, Dianwen Liu
The successful separating galena and chalcopyrite by flotation presents difficulties owing to their analogous surface chemical properties. This study investigated sodium periodate (SP) as a novel depressant for selectively oxidizing and modifying chalcopyrite and galena surfaces, enabling successful flotation separation. In micro-flotation tests were carried out at pH 8.5 and SP concentration of 5 × 10−4
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Transformation of MoSe2 to MoSe2-xOyvia controlled oxidation for high-performance resistive switching Appl. Surf. Sci. (IF 6.3) Pub Date : 2024-09-15 Anita Khichar, Arnab Hazra
The current study shows an improvised resistive switching in oxygenated MoSe2 (MoSe2-xOy) thin film. 2D nanosheets assembled nanoflower morphology of MoSe2 was synthesized with hydrothermal route and then treated with thermal oxidation process at 300⁰C in presence of 0, 0.5, 5 and 20 % of oxygen. The coexistence of MoSe2 and MoOx in each samples was investigated with various spectroscopic techniques
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Near stoichiometric-ratio Mg3Sb2 thermoelectric thin films fabricated via multi-step annealing strategies Mater. Today Phys. (IF 10.0) Pub Date : 2024-09-14 Qi Zou, Hongjing Shang, Zhongxin Liang, Lin Zhang, Xiaolei Wang, Yutong Chen, Changping Feng, Hongwei Gu, Zhifeng Ren, Fazhu Ding
Recently, Zintl Mg3Sb2-based compounds have attracted attention due to high thermoelectric performance, but most studies are concentrated on bulk materials with few on films and devices, limiting their applications for microelectronics. Here, p-type Mg3Sb2 films near stoichiometric-ratio are successfully fabricated using the multi-step experimental strategies based on the magnetron sputtering method
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Nickel aluminum selenide wrapped by NiCoAl-layered double hydroxide enables a robust structure for supercapacitors Appl. Surf. Sci. (IF 6.3) Pub Date : 2024-09-14 Liu Wan, Yan Zhang, Cheng Du, Mingjiang Xie, Jian Chen
To explore a simple and convenient strategy for the construction of hybrid composites as advanced electrode materials for supercapacitors (SCs), this research realized the construction of nickel − aluminium selenide (NiAlSe)@NiCoAl-layered double hydroxide (NiCoAl-LDH) heterostructure. In-situ hybridization of NiCoAl-LDH nanosheets onto NiAlSe nanoparticles anchored on carbon cloth generates a special
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Boosting photocatalytic H2 evolution in B-doped g-C3N4/O-doped g-C3N4 through synergistic band structure engineering and homojunction formation Appl. Surf. Sci. (IF 6.3) Pub Date : 2024-09-14 Inju Hong, Yi-An Chen, Jen-An Shih, Huiju Jung, Yongju Yun, Ying-Chih Pu, Yung-Jung Hsu, Hyun Sik Moon, Kijung Yong
Photocatalytic hydrogen production is a promising method to address the increasing energy demand and depletion of fossil fuels. Among various photocatalysts, g-C3N4 (CN) has attracted significant attention due to its favorable properties and tunable band structure. CN-based heterojunctions have been developed to enhance photocatalytic efficiency through improved charge separation via interfacial charge
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Antibacterial mechanism of water-soluble CeO2 nanoflowers and its product design in antibacterial application Appl. Surf. Sci. (IF 6.3) Pub Date : 2024-09-14 Chang Song, Shuangli Luo, Mingxia He, Xiaoqing Zhao, Mengmeng Sun
Antibacterial surface coatings have attracted growing attention in the textile industry. In this study, water-soluble CeO2 nanoflowers were synthesized by a modified critical micelle antisolvent method, displaying the potential for mass production at a low cost. The structure and electronic states of CeO2 were investigated deeply. Moreover, the antibacterial mechanism of CeO2 was studied in depth.
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Tailoring the tribological properties of Cu composite coatings via integrating strengthening W particles and lubricant graphene Appl. Surf. Sci. (IF 6.3) Pub Date : 2024-09-14 Yuantao Shi, Yan Lin, Jiahang Liu, Wanli Song, Cheng Zhang, Xiang Chen, Lin Liu, Jie Pan
In this study, by integrating the strengthening strategy with solid lubricant modification, we fabricated Cu composite coatings that incorporate both strengthening W particles and lubricative graphene nanoplatelets (GNPs) through cold spraying. Experimental findings demonstrate that the Cu-W-GNPs coating achieves a remarkably low coefficient of friction (COF) of 0.16 and a wear rate of only 1.9 × 10−5 mm3/N·m
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Electronic regulation by constructing RGO/MoCQD/CF double interface to enhance performance in solar cells Appl. Surf. Sci. (IF 6.3) Pub Date : 2024-09-14 Jixin Yao, Shibin Lu, Ying Meng, Feng Zhou, Dongmeng Chen, Huaibao Tang, Haifeng Xu, Wen Wang, Feng Du, Guang Li
The intrinsic defects such as the low electrical conductivity and sluggish kinetics for counter electrode seriously hinder its ability to meet the requirements of daily applications for dye-sensitized solar cells (DSSCs). Herein, to propel the development of DSSCs toward ultra-high stability and fast dynamics, the counter electrode (CE) of RGO/MoCQD/CF nanoreactors are created by sandwiching stable
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Enhanced PEC generation of hydrogen from seawater driven by efficient and stable Ti-Fe2O3 photoanode Appl. Surf. Sci. (IF 6.3) Pub Date : 2024-09-14 Karthick Ramalingam, Krzysztof Bieńkowski, Nabila Nawaz, Renata Solarska
Incorporation of Ti4+ ions into the hematite (α-Fe2O3) photoanodes has garnered significant consideration for the photoelectrochemical water splitting process since it improves the charge transport and optical properties of pristine hematite material. Herein, we have approached a facile route to fabricate the thin films of Ti-Fe2O3 by spray pyrolysis treatment. The Ti-Fe2O3 photocurrent density delivers
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The effect of Nb additions on the passive behavior of NiTi shape memory alloys Appl. Surf. Sci. (IF 6.3) Pub Date : 2024-09-14 M.E.R. Cronemberger, R. Silva, C.B. Martins Junior, G.S. Vacchi, E.D. Gonzalez, C.A.D. Rovere
This study explores the passivity and localized corrosion behavior of Ni(100-x)/2Ti(100-x)/2Nbx shape memory alloys (where x = 3, 6, and 9 at.%) through potentiodynamic and potentiostatic polarization tests in 3.5 wt% NaCl solution. The results reveal a significant dependence of the surface passive film’s stability on the Nb concentration. Using X-ray photoelectron spectroscopy (XPS), the chemical
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Wetting behavior of Ti-Ni-xNb filler alloy on (HfTaZrNbTi)C high-entropy carbide ceramic Appl. Surf. Sci. (IF 6.3) Pub Date : 2024-09-14 Kongbo Sun, Zhenwen Yang, Shiyu Niu, Ruijie Mu, Ying Wang
Exploring the wetting behavior of active filler alloys on high-entropy ceramic is critical to clarifying the solid/liquid interface reaction mechanism and guiding the preparation of high-performance composites. The wetting and spreading behaviors of the molten Ti-Ni-xNb filler alloys, both without and with different Nb concentrations, on (HfTaZrNbTi)C high-entropy carbide (HEC) ceramic were investigated
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Vacuum evaporation synthesizing Sc film layer and elucidation of near-surface Ba-O-Sc electronic configuration for dispenser cathode Appl. Surf. Sci. (IF 6.3) Pub Date : 2024-09-14 Junhao Sun, Yunfei Yang, Liran Dong, Zheng Liu, Peng Liu, Yongfeng Cai, Hexiong Liu, Jinshu Wang
One of the important issues with the scandate cathode is the mechanism by which Sc works on the cathode surface. A surface Sc-rich dispenser cathode was prepared via the vacuum evaporation method to clarify the role of Sc in the cathode performance. The XPS results indicate that the surface chemical state of Sc on the surface after activation is consists of Sc0 and ScƐ+ (0<Ɛ<3). Furthermore, the adsorption
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Strain effects on the structural stability and defect properties of γ-CsPbI3 Appl. Surf. Sci. (IF 6.3) Pub Date : 2024-09-14 Jianen Zhang, Li Guan, Zhijuan Chen, Tao Luo, Tao Yin, Xiaojie Ren, Weicai Shi, Chunzhi Liu, Xiaobo Chen, Xu Li
Black γ phase CsPbI3 exhibits better structure stability at room temperature, making it a compelling candidate for perovskite solar cells. However, the long-term stability remains a challenge due to lattice strain. Here, the lattice structure stability and defect properties of γ-CsPbI3 under biaxial strains on the different planes were investigated by first-principles method. The results show that
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In situ determination of indium/gallium composition in InxGa1-x nanodroplets on GaAs(1 1 1)A based on the complementarity between XPS and REELS Appl. Surf. Sci. (IF 6.3) Pub Date : 2024-09-14 Romain Jouanneaud, Guillaume Monier, Luc Bideux, Nicolas Pauly, Christine Robert-Goumet
This work provides a new tool based on the complementarity between X-ray Photoelectron Spectroscopy (XPS) and Reflection Electron Energy Loss Spectroscopy (REELS). More precisely, this study is focused on the in situ precise determination of indium and gallium composition of self-assembled InxGa1-x nanodroplets on GaAs(111)A substrate during the first stage of III-V quantum dots growth by droplet epitaxy
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Rational H2O deintercalation effects on cobalt vanadium oxide hydrates for ultrafast energy storage devices Appl. Surf. Sci. (IF 6.3) Pub Date : 2024-09-14 Gyu-Jin Park, Myeong-Hun Jo, Hyo-Jin Ahn
Pseudocapacitive materials have been employed in supercapacitors owing to their high specific capacitance. Nevertheless, high-level ultrafast capabilities are emphasized to overcome their rapid capacitance degradation under ultrafast-rate ion diffusion conditions. We demonstrated rational HO deintercalation effects on cobalt vanadium oxide hydrate (CVOH) with increasing temperature. As the temperature
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Revelation of the high surface insulation performance of the electron-delocalized group through molecule self-assembly on alumina insulator Appl. Surf. Sci. (IF 6.3) Pub Date : 2024-09-13 Yankun Huo, Wenyuan Liu, Yajiao He, Hongjie Wang, Xianchen Bai, Jun Cheng, Changfeng Ke
Surface modification of vacuum insulators is a promising way to improve their surface insulation performance but commonly used surface modification technologies in surface insulation area such as fluorination and plasmas treatment are unable to control the surface chemical components at the molecular level, which makes it hard to explore molecular groups with high surface insulation performance. In
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Enhanced marmatite activation by copper with ammonium sulfate: An experimental and DFT investigation Appl. Surf. Sci. (IF 6.3) Pub Date : 2024-09-13 Jing Yang, Luzheng Chen, Dandan Wu, Qi Zuo, Huiqin Chen, Qi Nie
The presence of iron atoms on the marmatite surface hinders effective interaction between the activator and the mineral, leading to unsatisfactory flotation performance through direct copper (Cu) activation. Hence, this study introduced ammonium sulfate to enhance the marmatite-activation capability by Cu ions. Additionally, the reinforcement mechanism was investigated through microflotation tests
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GaInN hexagonal nanopyramid-based structures with coaxial multiple-quantum shells for red-light micro-LEDs Appl. Surf. Sci. (IF 6.3) Pub Date : 2024-09-13 Soma Inaba, Weifang Lu, Ayaka Shima, Naoto Fukami, Yuta Hattori, Kai Huang, Motoaki Iwaya, Tetsuya Takeuchi, Satoshi Kamiyama
The core–shell GaInN/GaN multiple-quantum shells (MQSs) grown on (11¯01) semipolar plane nanopyramids with a thick n-GaInN were characterized, in terms of effectively suppressing quantum-confined Stark effect and enhancing In composition. The panchromatic mappings revealed that the MQS grown on GaInN nanopyramids exhibited a brighter emission throughout the entire structures, in contrast to that on
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Evaluating diffusivity for efficient electrocatalytic conversion of carbon dioxide into multicarbon products using dealloyed hierarchically nanoporous copper Appl. Surf. Sci. (IF 6.3) Pub Date : 2024-09-13 Wen-Han Tsai, Jun Yi Lok, Tsu-Chin Chou, I-Chung Cheng
Hierarchical nanoporous copper (Hi-NPC) is a promising catalyst for carbon dioxide reduction reaction (CO2RR) due to its high surface area and excellent mass transport properties. To evaluate the effect of its architecture, eutectic-phased Cu18Al82 and single-phased Cu33Al67 were potentiostatically dealloyed to produce Hi-NPC and homogeneous nanoporous copper (Ho-NPC), respectively. At a comparable
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Enhancing electric field intensity of interfacial electric double layer to improve properties of solid electrolyte interface for sodium-ion batteries Appl. Surf. Sci. (IF 6.3) Pub Date : 2024-09-13 Dongni Zhao, Yanjun Zhao, Peng Wang, Junwei Zhang, Jinlong Sun, Ling Hu, Junfei Zhou, Hui Wang, Yijie Yao, Shiyou Li
The electrical double layer (EDL) provides a critical area, where the specific adsorption on the electrode dominates the initial structure and chemical composition of the solid electrolyte interface (SEI) film. Therefore, the SEI can be optimized by adjusting the properties of the EDL. Here, we regulate the properties of EDL to optimize the composition and morphology of the SEI film on the hard carbon
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Localization and other properties of electronic states in a semiconductor revealed by their response to surface doping and band-bending potential Appl. Surf. Sci. (IF 6.3) Pub Date : 2024-09-13 Jacek J. Kolodziej, Dawid Wutke, Mariusz Garb, Natalia Olszowska, Marcin Rosmus
Using photoelectron spectroscopy (PES), we study InAs(001) and InAs(110) surfaces, doped with Te atoms to induce strong band-bending phenomena and a formation of two-dimensional electron gases (2DEGs). The band structure of the 2DEGs as well as the coexisting 3D bulk electronic structure are investigated. We discuss several schemes to estimate the band-bending potentials at surfaces by PES methods
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Interface stabilization strategy realizing low-temperature sodium storage in Sb anode prepared by ball milling method Appl. Surf. Sci. (IF 6.3) Pub Date : 2024-09-13 Jing Zhou, Qing Chang, Da Zhang, Li Gao, Yong Gao, Long Wang, Jiayi Shang, Yu Cao
Antimony (Sb) is an attractive anode material for sodium-ion batteries (SIBs) owing to its low operating potential, low cost, and high theoretical capacity. However, the large volume expansion of Sb during the Na alloying/dealloying process, which greatly limits its application in SIBs. Simultaneously, as the temperature decreases, the formation of a poor coating on the anode surface significantly
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High-density integration of uniform sub-22 nm silicon nanowires for transparent thin film transistors on glass Appl. Surf. Sci. (IF 6.3) Pub Date : 2024-09-13 Wei Liao, Ying Zhang, Dianlun Li, Junzhuan Wang, Linwei Yu
Ultrathin catalytical silicon nanowires (SiNWs), grown as orderly arrays upon glass substrates, are ideal 1D channels for the construction of high-performance field effect transistors for low-power and high aperture/transparency electronics. In this work, a rather uniform growth integration of high-density ultrathin SiNWs has been accomplished directly on glass substrate at 290 °C, via an in-plane
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Porous carbon nanosheets loaded Co4N as ORR/OER bifunctional catalysts for zinc-air battery Appl. Surf. Sci. (IF 6.3) Pub Date : 2024-09-13 Beibei Li, Yangyang Ren, Guichao Zhang, Chenhao Lv, Lanlan Li, Xiaojing Yang, Zunming Lu, Xinghua Zhang, Xiaofei Yu
Efficient and durable oxygen evolution reaction (OER) and oxygen reduction reaction (ORR) bifunctional electrocatalysts are critical for the development of zinc-air battery (ZAB). Unfortunately, conventional commercial catalysts usually display selective activity in only one reaction and cannot efficiently catalyze the two reactions at the same time. In this paper, porous carbon nanosheets loaded CoN
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Dynamical Correlations and Order in Magic-Angle Twisted Bilayer Graphene Phys. Rev. X (IF 11.6) Pub Date : 2024-09-11 Gautam Rai, Lorenzo Crippa, Dumitru Călugăru, Haoyu Hu, Francesca Paoletti, Luca de’ Medici, Antoine Georges, B. Andrei Bernevig, Roser Valentí, Giorgio Sangiovanni, Tim Wehling
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Structural and electronic transformations in TiO2 induced by electric current Mater. Today Phys. (IF 10.0) Pub Date : 2024-09-12 Tyler C. Sterling, Feng Ye, Seohyeon Jo, Anish Parulekar, Yu Zhang, Gang Cao, Rishi Raj, Dmitry Reznik
In-situ diffuse neutron scattering experiments revealed that when electric current is passed through single crystals of rutile TiO under conditions conducive to flash sintering, it induces the formation of parallel planes of oxygen vacancies. Specifically, a current perpendicular to the -axis generates planes normal to the (132) reciprocal lattice vector, whereas currents aligned with the -axis form