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Designing a 0D/2D S‐Scheme Heterojunction over Polymeric Carbon Nitride for Visible‐Light Photocatalytic Inactivation of Bacteria

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Angewandte Chemie 2020年第13期132卷

作者： Pengfei Xia Shaowen Cao Bicheng Zhu Mingjin Liu Miusi Shi Jiaguo Yu Yufeng Zhang State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology 122 Luoshi Road Wuhan 430070 P. R. China State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education School and Hospital of Stomatology Wuhan University Wuhan Hubei 430079 P. R. China

Constructing heterojunctions between two semiconductors with matched band structure is an effective strategy to acquire high‐efficiency photocatalysts. The S‐scheme heterojunction system has shown great potential in facilitating separation and transfer of photogenerated carriers, as well as acquiring strong photoredox ability. Herein, a 0D/2D S‐Scheme heterojunction material involving CeO 2 quantum dots and polymeric carbon nitride (CeO 2 /PCN) is designed and constructed by in situ wet chemistry with subsequent heat treatment. This S‐scheme heterojunction material shows high‐efficiency photocatalytic sterilization rate (88.1 %) towards Staphylococcus aureus (S. aureus) under visible‐light irradiation ( λ ≥420 nm), which is 2.7 and 8.2 times that of pure CeO 2 (32.2 %) and PCN (10.7 %), respectively. Strong evidence of S‐scheme charge transfer path is verified by theoretical calculations, in situ irradiated X‐ray photoelectron spectroscopy, and electron paramagnetic resonance.

关键词： Antibakterielle materialien Photokatalyse Polymeres Kohlenstoffnitrid S-Schema-Heterokontakte

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手性生物界面材料

手性生物界面材料

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2012年全国高分子材料科学与工程研讨会

作者： Taolei Sun 孙涛垒 State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology No.122 Luoshi Road Wuhan 430070 武汉理工大学材料复合新技术国家重点实验室武汉珞狮路122号 430070

生命体实际上是一个典型的多层次手性体系。作为生命体的基本构成单元，天然生物分子通常都是手性分子，并表现出高度的手性选择性。这些手性分子通过化学键或氢键及疏水相互作用等组装形成具有具有特殊立体构象和功能的生物大分子，这... 详细信息

生命体实际上是一个典型的多层次手性体系。作为生命体的基本构成单元，天然生物分子通常都是手性分子，并表现出高度的手性选择性。这些手性分子通过化学键或氢键及疏水相互作用等组装形成具有具有特殊立体构象和功能的生物大分子，这些生物大分子进一步装配形成细胞器、细胞，乃至组织和器官等更高级的生命体存在形式。相应的，生命体的宏观形态也表现出独特的非对称特征，并且许多生物及生理过程也与分子的手性密切相关。这不仅是生命起源研究中的一个重大问题，也启示人们将手性性质入生物/材料界面相互作用的研究中，从而发展出一个新的研究方向—手性生物界面材料。发现材料的手性性质强烈影响细胞及生物大分子(如蛋白质、DNA等)在材料表面的行为，实验及理论研究表明，立体选择的氢键及疏水相互作用在其中起着关键的作用。在此启示下，进一步将此效应和响应性生物界面材料的研究结合，实现了分子手性性质及相互作用向材料界面宏观性质的转变。

关键词：生物界面材料手性性质宏观形态

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Effect of Topology Structure on the Output Performance of an Automobile Exhaust Thermoelectric Generator

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IOP Conference Series: materials Science and Engineering 2017年第1期199卷

作者： W Fang S H Quan C J Xie B Ran X L Li L Wang Y T Jiao T W Xu Hubei Key Laboratory of Advanced Technology for Automotive Components Automobile Engineering Institute Wuhan University of Technology 205 Luoshi Road Hongshan District Wuhan 430070 China. School of Automation Wuhan University of Technology Wuhan 430070 China Corresponding author. Tel.: +86 027 87859589 Department of Civil & Environment Engineering University of Wisconsin Madison USA State Key Laboratory of Advanced Technology for Material Synthesis and Processing Wuhan University of Technology Wuhan China Fax: +86 027 87859589.

The majority of the thermal energy released in an automotive internal combustion cycle is exhausted as waste heat through the tail pipe. This paper describes an automobile exhaust thermoelectric generator (AETEG), designed to recycle automobile waste heat. A model of the output characteristics of each thermoelectric device was established by testing their open circuit voltage and internal resistance, and combining the output characteristics. To better describe the relationship, the physical model was transformed into a topological model. The connection matrix was used to describe the relationship between any two thermoelectric devices in the topological structure. Different topological structures produced different power outputs; their output power was maximised by using an iterative algorithm to optimize the series-parallel electrical topology structure. The experimental results have shown that the output power of the optimal topology structure increases by 18.18% and 29.35% versus that of a pure in-series or parallel topology, respectively, and by 10.08% versus a manually defined structure (based on user experience). The thermoelectric conversion device increased energy efficiency by 40% when compared with a traditional car.

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Microstructures of Nanotubes Reinforced Alumina Fabricated by Two Fast-Sintering Methods

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IOP Conference Series: materials Science and Engineering 2011年第1期20卷

作者： L W Huang Z Y Fu H Wang S W Lee K Niihara State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan 430070 China Department of Environmental Engineering Sun Moon University Chungnam 336-708 Korea Extreme Energy-Density Research Institute Nagaoka University of Technology Niigata 940-2188 Japan

Spark plasma sintering (SPS) and Self-propagating High-temperature synthesis/ quick pressing (SHS/QP) methods were used to fabricate nanotubes reinforced alumina. The difference in microstructure was discussed. In the SHS/QP process, the maximum densification temperature is 1660°C and the heating rate is about 1600°C /min. The whole densification process in SHS/QP is very short, which is much beneficial to protect the nanotubes and restrain the growing of grains. The fracture toughness of the sample prepared by SHS/QP is up to 4.9MPam½ for 1mass% CNTs/Al2O3 composites, which shows excellent toughening effects of nanotubes.

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Low-Cost Hydroxyacid Potassium Synergists as an Efficient In Situ Defect Passivator for High Performance Tin-Oxide-Based Perovskite Solar Cells

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Angewandte Chemie 2023年第25期135卷

作者： Wei Dong Chenpu Zhu Cong Bai Yue Ma Linfeng Lv Juan Zhao Fuzhi Huang Yi-Bing Cheng Jie Zhong Research Centre for Advanced Thin Film Photovoltaics State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan 430070 P. R. China Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory Foshan 528216 Guangdong Province P. R. China School of Automobile Engineering Wuhan University of Technology Wuhan 430070 P. R. China

Perovskite solar cells (PSCs) based on SnO 2 electron transport layers have attracted extensive research due to their compelling photovoltaic performance. Herein, we presented an in situ passivation of SnO 2 with low-cost hydroxyacid potassium synergist during deposition to optimize the interface carrier extraction and transport for high power conversion efficiency (PCE) and stabilities of PSCs. The orbital overlap of the carboxyl oxygen with the Sn atom alongwith the homogenous nano-particle deposition effectively suppresses the interfacial defects and releases the internal residual strains in the perovskite. Accordingly, a PCE of 24.91 % with a fill factor (FF) up to 0.852 is obtained for in situ passivated devices, which is one of the highest values for SnO 2 -based PSCs. Moreover, the unencapsulated device maintained 80 % of its initial PCE at 80 °C over 600 h, 100 % PCE at ambient conditions for 1300 h, and 98 % after one week maximum power point tracking (MPPT) under continuous AM1.5G illumination.

关键词： Chemical Bath Deposition Defect Passivation Electron Transport Layer Perovskite Solar Cells

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Corrigendum to “Simultaneously suppressing the dendritic lithium growth and polysulfides migration by a polyethyleneimine grafted bacterial cellulose membrane in lithium-sulfur batteries” [Appl. Surf. Sci. 597 (2022) 153683]

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Applied Surface Science 2022年 599卷

作者： Zhihuang Fang Long Tu Zhijia Zhang Jiankun Wei Yinyu Xiang Wei Guo JunSheng Li School of Chemistry Chemical Engineering and Life Sciences Wuhan University of Technology Wuhan 430070 PR China Advanced Production Engineering Engineering and Technology Institute Groningen University of Groningen 9747AG Groningen the Netherlands State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan 430070 PR China Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory Xianhu Hydrogen Valley Foshan 528200 PR China

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Chirality‐Assisted Ring‐Like Aggregation of Aβ(1–40) at Liquid–Solid Interfaces: A Stereoselective Two‐Step Assembly Process†

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Angewandte Chemie 2014年第7期127卷

作者： Guanbin Gao Mingxi Zhang Pei Lu Guanlun Guo Dong Wang Taolei Sun State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan 430070 (PR China) Beijing National Laboratory for Molecular Sciences (BNLMS) Institute of Chemistry Chinese Academy of Sciences Beijing 100190 (PR China) Hubei Key Laboratory of Advanced Technology of Automotive Components Wuhan University of Technology Wuhan 430070 (PR China) School of Chemistry Chemical Engineering and Life Science Wuhan University of Technology Wuhan 430070 (PR China)

Molecular chirality is introduced at liquid–solid interfaces. A ring‐like aggregation of amyloid Aβ(1–40) on N ‐isobutyryl‐ L ‐cysteine ( L ‐NIBC)‐modified gold substrate occurs at low Aβ(1–40) concentration, while D ‐NIBC modification only results in rod‐like aggregation. Utilizing atomic force microscope controlled tip‐enhanced Raman scattering, we directly observe the secondary structure information for Aβ(1–40) assembly in situ at the nanoscale. D ‐ or L ‐NIBC on the surface can guide parallel or nonparallel alignment of β‐hairpins through a two‐step process based on electrostatic‐interaction‐enhanced adsorption and subsequent stereoselective recognition. Possible electrostatic interaction sites (R5 and K16) and a chiral recognition site (H14) of Aβ(1–40) are proposed, which may provide insight into the understanding of this effect.

关键词： Adsorption Amyloide Chiralität Oberflächenchemie Stereoselektivität

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Work-function-induced Interfacial Built-in Electric Fields in Os-OsSe2Heterostructures for Active Acidic and Alkaline Hydrogen Evolution

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Angewandte Chemie 2022年第36期134卷

作者： Ding Chen Ruihu Lu Ruohan Yu Yuhang Dai Hongyu Zhao Dulan Wu Pengyan Wang Jiawei Zhu Dr. Zonghua Pu Lei Chen Jun Yu Prof. Shichun Mu State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan 430070 P. R. China Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory Xianhu Hydrogen Valley Foshan 528200 P. R. China NRC (Nanostructure Research Centre) Wuhan University of Technology Wuhan 430070 P. R. China

Theoretical calculations unveil that the formation of Os-OsSe 2 heterostructures with neutralized work function (WF) perfectly balances the electronic state between strong (Os) and weak (OsSe 2 ) adsorbents and bidirectionally optimizes the hydrogen evolution reaction (HER) activity of Os sites, significantly reducing thermodynamic energy barrier and accelerating kinetics process. Then, heterostructural Os-OsSe 2 is constructed for the first time by a molten salt method and confirmed by in-depth structural characterization. Impressively, due to highly active sites endowed by the charge balance effect, Os-OsSe 2 exhibits ultra-low overpotentials for HER in both acidic (26 mV @ 10 mA cm −2 ) and alkaline (23 mV @ 10 mA cm −2 ) media, surpassing commercial Pt catalysts. Moreover, the solar-to-hydrogen device assembled with Os-OsSe 2 further highlights its potential application prospects. Profoundly, this special heterostructure provides a new model for rational selection of heterocomponents.

关键词： Charge Balance Effect DFT Calculation Heterostructure Engineering Hydrogen Evolution Os-Based Electrocatalyst Electrocatalysis

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Enhancing Resistance to Chloride Corrosion by Controlling the Morphologies of PtNi Electrocatalysts for Alkaline Seawater Hydrogen Evolution

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Chemistry (Weinheim an der Bergstrasse, Germany) 2023年第5期29卷 e202202811页

作者： Xue-Qi Zhang Yu-Xuan Xiao Ge Tian Xiong Yang Yuan Dong Fan Zhang Xiao-Yu Yang State Key Laboratory of Advanced Technology for Materials Synthesis and Processing & Shenzhen Research Institute & Joint Laboratory for Marine Advanced Materials in Pilot National Laboratory for Marine Science and Technology (Qingdao) Wuhan University of Technology Wuhan 430070 P. R. China. School of Chemical Engineering and Technology Sun Yat-sen University Zhuhai 519082 P. R. China.

A solvothermal method to prepare PtNi alloys that have differing morphologies is described. By adjusting the feed ratio of Pt and Ni precursors in this process, PtNi alloys with different compositions (Pt : Ni atomic ratio from 1 : 3 to 3 : 1) and morphologies (evolution from nanobranches to nanoparticles) are generated. The prepared Pt Ni alloy, which has a composite morphology comprised of nanobranches and nanoparticles, exhibits superior activity and durability towards the hydrogen evolution reaction (HER) in seawater compared to those of commercial Pt/C catalyst and other PtNi alloys that have different compositions and morphologies. The excellent seawater HER performance of Pt Ni is ascribed to its nanobranch/nanoparticle morphology that optimally facilitates electron accumulation on Pt, which enhances resistance to chloride corrosion in seawater.

关键词： PtNi alloys chloride corrosion resistance hydrogen evolution reaction morphology control seawater

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Energy Storage: Novel Polygonal Vanadium Oxide Nanoscrolls as Stable Cathode for Lithium Storage (Adv. Funct. Mater. 12/2015)

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advanced Functional materials 2015年第12期25卷

作者： Qiulong Wei Shuangshuang Tan Xiaoyi Liu Mengyu Yan Fengchao Wang Qidong Li Qinyou An Ruimin Sun Kangning Zhao Hengan Wu Liqiang Mai State Key Laboratory of Advanced Technology for Materials Synthesis and Processing WUT‐Harvard Joint Nano Key Laboratory Wuhan University of Technology Hubei Wuhan 430070 China CAS Key Laboratory of Mechanical Behavior and Design of Materials Department of Modern Mechanics University of Science and Technology of China Hefei Anhui 230027 China Cullen College of Engineering Department of Electrical and Computer Engineering University of Houston Houston TX USA

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