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Interfacially Ordered NiCoMoS Nanosheets Arrays on Hierarchical Ti3C2TxMXene for High-Energy-Density Fiber-Shaped Supercapacitors with Accelerated Pseudocapacitive Kinetics

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Angewandte Chemie 2024年第36期136卷

作者： Xiaotong Mei Dr. Chao Yang Fangyuan Chen Yuting Wang Dr. Yang Zhang Dr. Zengming Man Prof. Wangyang Lu Prof. Jianhong Xu Prof. Guan Wu National Engineering Lab for Textile Fiber Materials and Processing Technology School of Materials Science and Engineering Zhejiang Sci-Tech University Hangzhou 310018 P. R. China Zhejiang Provincial Innovation Center of Advanced Textile Technology Shaoxing 312000 P. R. China The State Key Laboratory of Chemical Engineering Department of Chemical Engineering Tsinghua University Beijing 100084 P. R. China

Balancing electrochemical activity and structural reversibility of fibrous electrodes with accelerated Faradaic charge transfer kinetics and pseudocapacitive storage are highly crucial for fiber-shaped supercapacitors (FSCs). Herein, we report novel core–shell hierarchical fibers for high-performance FSCs, in which the ordered NiCoMoS nanosheets arrays are chemically anchored on Ti 3 C 2 T x fibers. Beneficial from architecting stable polymetallic sulfide arrays and conductive networks, the NiCoMoS−Ti 3 C 2 T x fiber maintains fast charge transfer, low diffusion and OH − adsorption barrier, and stabilized multi-electronic reaction kinetics of polymetallic sulfide. Consequently, the NiCoMoS−Ti 3 C 2 T x fiber exhibits a large volumetric capacitance (2472.3 F cm −3 ) and reversible cycling performance (20,000 cycles). In addition, the solid-state symmetric FSCs deliver a high energy density of 50.6 mWh cm −3 and bending stability, which can significantly power electronic devices and offer sensitive detection for dopamine.

关键词： Transition polymetallic sulfide nanosheets Core-shell hierarchical fiber Flexible supercapacitors Wearable applications

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Doped Lead Halide White Phosphors for Very High Efficiency and Ultra‐High Color Rendering

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Angewandte Chemie 2019年第7期132卷

作者： Hailong Yuan Florian Massuyeau Nicolas Gautier Antoine Blaise Kama Eric Faulques Fei Chen Qiang Shen Lianmeng Zhang Michael Paris Romain Gautier State Key Lab of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan 430070 China Institut des Matériaux Jean Rouxel (IMN) Université de Nantes CNRS F-44000 Nantes cedex 3 France Laboratoire de Chimie Minérale et Analytique (LA.CHI.MIA) Département de Chimie Faculté des sciences et techniques Université Cheikh Anta Diop de Dakar Dakar Senegal

Near‐UV‐pumped white‐light‐emitting diodes with ultra‐high color rendering and decreased blue‐light emission is highly desirable. However, discovering a single‐phase white light emitter with such characteristics remains challenging. Herein, we demonstrate that Mn doping as low as 0.027 % in the hybrid post‐perovskite type (TDMP)PbBr 4 (TDMP= trans ‐2,5‐dimethylpiperaziniium) enables to achieve a bright pure white emission replicating the spectrum of the sun's rays. Thus, a white phosphor exhibiting an emission with CIE coordinates (0.330, 0.365), a high photoluminescence quantum yield of 60 % (new record for white light emission of hybrid lead halides), and an ultra‐high color rendering index (CRI=96, R9=91.8), corresponding to the record value for a single phase emitter was obtained. The investigation of the photoluminescence properties revealed how free excitons, self‐trapped excitons, and low amount of Mn dopants are coupled to give rise to such pure white emission.

关键词： Einzelphasen-Leuchtstoff Hybrid-Bleihalogenide Photolumineszenz Quantenausbeute Ultrahoher Farbwiedergabeindex

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Frontispiz: Interfacially Ordered NiCoMoS Nanosheets Arrays on Hierarchical Ti3C2TxMXene for High-Energy-Density Fiber-Shaped Supercapacitors with Accelerated Pseudocapacitive Kinetics

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Angewandte Chemie 2024年第36期136卷

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A 3D-printed metamaterial with electromagnetically induced transmission

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IOP Conference Series: materials Science and Engineering 2017年第1期250卷

作者： Zhengpeng Qin Xiran Chen Yawei Zheng Guochao Wei Luman Qin Nangang Zhang Kan Liu Songzhan Li Shengxiang Wang School of Electronic and Electrical Engineering Wuhan Textile University Wuhan 430020 P. R. China Advanced Micro-Nano Textile Innovation Research Center Wuhan Textile University Wuhan 430020 P. R. China State Key Laboratory for Hubei New Textile Materials and Advanced Processing Technology Wuhan Textile University Wuhan 430020 P. R. China

Metamaterials have recently enabled coupling electromagnetic transparency due to interference effects in coupled sub-wavelength resonators. In this work, it presents a three dimensional (3D) metamaterial designed with hollow cube whose simulation shows electromagnetically induced transparency in GHz regime with polarization insensitive to the incident electromagnetic wave due to the ultra-sharp resonance line width as a result of interaction between the constituent meta-atoms. Influences of various parameters including incident angle and frequency have been investigated numerically in detail. The simulation shows significant transmission magnitude of 99.8% at ~12GHz.

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Regulating Reconstruction-Engineered Active Sites for Accelerated Electrocatalytic Conversion of Urea

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Angewandte Chemie 2024年第36期136卷

作者： Jichao Zhang Jianrui Feng Jiexin Zhu Liqun Kang Longxiang Liu Fei Guo Jing Li Kaiqi Li Jie Chen Wei Zong Mingqiang Liu Ruwei Chen Ivan P. Parkin Liqiang Mai Guanjie He Christopher Ingold Laboratory Department of Chemistry University College London (UCL) 20 Gordon Street London WC1H 0AJ UK State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan Hubei 430070 China Department of Inorganic Spectroscopy Max-Planck-Institute for Chemical Energy Conversion Stiftstr. 34–36 45470 Mülheim an der Ruhr Germany Department of Materials University of Oxford Parks Road Oxford OX1 3PH Materials Research Institute School of Engineering and Materials Science Faculty of Science and Engineering Queen Mary University of London Mile End Road London E1 4NS UK

Reconstruction-engineered electrocatalysts with enriched high active Ni species for urea oxidation reaction (UOR) have recently become promising candidates for energy conversion. However, to inhibit the over-oxidation of urea brought by the high valence state of Ni, tremendous efforts are devoted to obtaining low-value products of nitrogen gas to avoid toxic nitrite formation, undesirably causing inefficient utilization of the nitrogen cycle. Herein, we proposed a mediation engineering strategy to significantly boost high-value nitrite formation to help close a loop for the employment of a nitrogen economy. Specifically, platinum-loaded nickel phosphides (Pt-Ni 2 P) catalysts exhibit a promising nitrite production rate (0.82 mol kWh −1 cm −2 ), high stability over 66 h of Zn-urea-air battery operation, and 135 h of co-production of nitrite and hydrogen under 200 mA cm −2 in a zero-gap membrane electrode assembly (MEA) system. The in situ spectroscopic characterizations and computational calculations demonstrated that the urea oxidation kinetics is facilitated by enriched dynamic Ni 3+ active sites, thus augmenting the “cyanate” UOR pathway. The C−N cleavage was further verified as the rate-determining step for nitrite generation.

关键词： Mediation engineering strategy Urea oxidation reaction Dynamic active sites High-value products

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Structure‐Property Relationships: High Energy Storage Performance of Opposite Double‐Heterojunction Ferroelectricity–Insulators (Adv. Funct. Mater. 10/2018)

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advanced Functional materials 2018年第10期28卷

作者： Tiandong Zhang Weili Li Yu Zhao Yang Yu Weidong Fei School of Materials Science and Engineering Harbin Institute of Technology Harbin 150001 P. R. China Key Laboratory of Engineering Dielectrics and Its Application Ministry of Education Harbin University of Science and Technology Harbin 150080 P. R. China School of Electrical and Electronic Engineering Harbin University of Science and Technology Harbin 150080 P. R. China National Key Laboratory of Science and Technology on Precision Heat Processing of Metals Harbin Institute of Technology Harbin 150001 P. R. China State Key Laboratory of Advanced Welding and Joining Harbin Institute of Technology Harbin 150001 P. R. China

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A Metamaterial with Dual-Band Perfect Terahertz Transmission

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IOP Conference Series: materials Science and Engineering 2017年第1期250卷

作者： Guochao Wei Yawei Zheng Xiran Chen Zhengpeng Qin Luman Qin Nangang Zhang Kan Liu Songzhan Li Shengxiang Wang School of Electronic and Electrical Engineering Wuhan Textile University Wuhan 430020 P. R. China Advanced Micro-Nano Textile Innovation Research Center Wuhan Textile University Wuhan 430020 P. R. China State Key Laboratory for Hubei New Textile Materials and Advanced Processing Technology Wuhan Textile University Wuhan 430020 P. R. China

In recent years, the electromagnetic metamaterial has been development rapidly. Meanwhile, its peculiar electromagnetic properties have been widely studied in the fields of electromagnetism and optics. Compared to conventional natural materials, metamaterials show some unusual phenomena, for example, negative refractive index. Because of their exotic properties, metamaterials have been found with many applications, such as perfect lens, cloaking, solar cells and so on. In this paper, we report a metamaterial with dual-band perfect transmission in terahertz range. By tailoring the periodicity of the unit cell, significantly high transmission can be obtained with the metamaterial. The simulation results show that significant transmission peaks at 3.56THz and 7.16THz with the magnitudes of 99.8% and 99.7%, respectively.

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Polycyclic Aromatic Hydrocarbons as a New Class of Promising Cathode materials for Aluminum-Ion Batteries

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Angewandte Chemie 2021年第3期134卷

作者： Dr. Dongqing Kong Dr. Tonghui Cai Haodong Fan Dr. Haoyu Hu Xiaohui Wang Yongpeng Cui Dandan Wang Yesheng Wang Prof. Dr. Han Hu Mingbo Wu Prof. Dr. Qingzhong Xue Prof. Dr. Zifeng Yan Xuejin Li Lianming Zhao Wei Xing State Key Laboratory of Heavy Oil Processing China University of Petroleum Qingdao 266580 P. R. China Weifang Key Lab of Advanced Light Materials Manufacturing and Forming Weifang University of Science and Technology Weifang 262700 P. R. China Department of Materials Chemistry School of Materials Science and Engineering China University of Petroleum Qingdao 266580 P. R. China Department of Materials Physics School of Materials Science and Engineering China University of Petroleum Qingdao 266580 P. R. China

As an emerging post-lithium battery technology, aluminum ion batteries (AIBs) have the advantages of large Al reserves and high safety, and have great potential to be applied to power grid energy storage. But current graphite cathode materials are limited in charge storage capacity due to the formation of stage-4 graphite-intercalated compounds (GICs) in the fully charged state. Herein, we propose a new type of cathode materials for AIBs, namely polycyclic aromatic hydrocarbons (PAHs), which resemble graphite in terms of the large conjugated π bond, but do not form GICs in the charge process. Quantum chemistry calculations show that PAHs can bind AlCl 4 − through the interaction between the conjugated π bond in the PAHs and AlCl 4 − , forming on-plane interactions. The theoretical specific capacity of PAHs is negatively correlated with the number of benzene rings in the PAHs. Then, under the guidance of theoretical calculations, anthracene, a three-ring PAH, was evaluated as a cathode material for AIBs. Electrochemical measurements show that anthracene has a high specific capacity of 157 mAh g −1 (at 100 mA g −1 ) and still maintains a specific capacity of 130 mAh g −1 after 800 cycles. This work provides a feasible “theory guides practice” research model for the development of energy storage materials, and also provides a new class of promising cathode materials for AIBs.

关键词： Aluminum ion batteries Anthracene Cathode materials Conjugated π bond Polycyclic aromatic hydrocarbons

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Low-coordination Nanocrystalline Copper-based Catalysts through Theory-guided Electrochemical Restructuring for Selective CO2Reduction to Ethylene

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Angewandte Chemie 2024年第16期136卷

作者： Wensheng Fang Ruihu Lu Fu-Min Li Chaohui He Dan Wu Kaihang Yue Yu Mao Wei Guo Bo You Fei Song Tao Yao Ziyun Wang Prof. Bao Yu Xia School of Chemistry and Chemical Engineering State Key Laboratory of Materials Processing and Die & Mould Technology Key Laboratory of Material Chemistry for Energy Conversion and Storage (Ministry of Education) Hubei Key Laboratory of Material Chemistry and Service Failure Wuhan National Laboratory for Optoelectronics Huazhong University of Science and Technology (HUST) 1037 Luoyu Rd Wuhan 430074 China School of Chemical Sciences University of Auckland Auckland 1010 New Zealand National Synchrotron Radiation Laboratory University of Science and Technology of China Hefei 230029 P. R. China CAS Key Laboratory of Materials for Energy Conversion Shanghai Institute of Ceramics Chinese Academy of Sciences (SICCAS) Shanghai 200050 China Shanghai Synchrotron Radiation Facility Shanghai Advanced Research Institute Chinese Academy of Sciences Shanghai 201800 China

Revealing the dynamic reconstruction process and tailoring advanced copper (Cu) catalysts is of paramount significance for promoting the conversion of CO 2 into ethylene (C 2 H 4 ), paving the way for carbon neutralization and facilitating renewable energy storage. In this study, we initially employed density functional theory (DFT) and molecular dynamics (MD) simulations to elucidate the restructuring behavior of a catalyst under electrochemical conditions and delineated its restructuring patterns. Leveraging insights into this restructuring behavior, we devised an efficient, low-coordination copper-based catalyst. The resulting synthesized catalyst demonstrated an impressive Faradaic efficiency (FE) exceeding 70 % for ethylene generation at a current density of 800 mA cm −2 . Furthermore, it showed robust stability, maintaining consistent performance for 230 hours at a cell voltage of 3.5 V in a full-cell system. Our research not only deepens the understanding of the active sites involved in designing efficient carbon dioxide reduction reaction (CO 2 RR) catalysts but also advances CO 2 electrolysis technologies for industrial application.

关键词： Carbon dioxide reduction Restructuring behavior Cu catalyst Ethylene Low coordination number

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A facile spray-pressing synthesis approach for reusable photothermal masks

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iScience 2023年第8期26卷 107286页

作者： Yi Lu Yi-Xuan Liu Yong Wang Robert Oestreich Zi-Yan Xu Wen Zhang Philipp Hügenell Christoph Janiak Xiao-Yu Yang Hoffmann Institute of Advanced Materials Shenzhen Polytechnic 7098 Liuxian Boulevard Nanshan District Shenzhen 518055 China. Institut für Anorganische Chemie und Strukturchemie Heinrich-Heine-Universität Düsseldorf Universitätsstraße 1 40225 Düsseldorf Germany. School of Chemical Engineering and Technology Sun Yat-sen University Zhuhai 519082 China. State Key Laboratory of Advanced Technology for Materials Synthesis and Processing & Shenzhen Research Institute Wuhan University of Technology Wuhan 430070 China. Division Thermal Systems and Buildings Fraunhofer Institute for Solar Energy Systems ISE Heidenhofstraße 2 Freiburg 79110 Germany.

Certain types of face masks are highly efficient in protecting humans from bacterial and viral pathogens, and growing concerns with high safety, low cost, and wide market suitability have accelerated the replacement of reusable face masks with disposable ones during the last decades. However, wearing these masks creates countless problems associated with personnel comfort as well as more significant issues related to the cost of fabrication, the generation of medical waste, and environmental contaminants. In this work, we present a facile spray-pressing technique for the production of P-masks with a potential scale-up prospect by adding a graphene layer on one side of meltblown fabric and a functional layer on the other side. In principle, this technique could be easily integrated into the present automatic mask production process and the masks have self-cleaning and/or self-sterilizing properties when it is exposed to solar or simulated solar irradiation.

关键词： Applied sciences materials synthesis Nanotechnology fabrication

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