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Fabricating films composed of tin selenides (SnSex, x = 1, 2) nanosheets via one-step vapor deposition and application in photoelectrochemical photodetectors

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Applied Surface Science 2025年 704卷

作者： Li, Menglong Feng, Haodi Yang, Xiongfeng Lei, Bingxin Du, Jun Chen, Ling Fan, Xing Su, Liumei School of Materials and Environment Guangxi Key Laboratory of Advanced Structural Materials and Carbon Neutralization Guangxi Colleges and Universities Key Laboratory of Eco-friendly Materials and Ecological Restoration Guangxi Minzu University Nanning530105 China State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures MOE Key Laboratory of New Processing Technology for Nonferrous Metals and Materials School of Resources Environment and Materials Guangxi University Nanning530004 China

Photoelectrochemical (PEC) devices have great potentials in the fields of photocatalysis and photoelectric conversion. Preparing nano-sized electrode materials with excellent properties through a simple and convenient method is significant in developing these devices. Here in this work, a facile one-step vapor deposition is adopted to fabricate photoelectrodes coated by tin selenides (SnSex, x = 1, 2) nanosheets films using single SnSe precursor. The chemical vapor deposition (CVD) feature during preparation process is the cause for the emergence of SnSe2. Corresponding phase formation mechanism as well as spatial phase distribution are studied. Taking advantage of deposition regularities, nanosheets composed of single phase (SnSe or SnSe2) or heterojunction (SnSe/SnSe2) are selectively in-situ grown on conductive substrate. When applied in PEC-type photo-detecting system, the one based on SnSe/SnSe2 heterojunction exhibits excellent photoresponse behaviors of high photoresponsivity (2.5 μA mW−1) and specific detectivity (108 Jones) as well as noteworthy self-powered activity, superior than the counterparts based on single phase. The increased separation efficiency of photogenerated carriers under the built-in electric field at the interface of SnSe/SnSe2 heterojunction is the reason of enhanced photoresponse performances. This work may enlighten and promote the further controllable preparation of heterojunction materials with satisfied photoelectrochemical performances. © 2025 Elsevier B.V.

关键词： Plasma CVD

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Cell-interface engineering of Shewanella oneidensis MR-1 for enhanced stability of viability and functions

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Colloids and Surfaces B: Biointerfaces 2025年 254卷

作者： Tong-Kai Zhang Jie Liu Zi-Qian Yi Kai-Qi Ye Wei Geng Yao-Qi Huang Ge Tian Xiao-Yu Yang State Key Laboratory of Silicate Materials for Architectures & State Key Laboratory of Advanced Technology for Materials Synthesis and Processing & School of Chemistry Chemical Engineering and Life Sciences & Laoshan Laboratory & School of Materials Science and Engineering Wuhan University of Technology Wuhan 430070 China School of Engineering and Applied Sciences Harvard University Cambridge MA 02138 USA National energy key laboratory for new hydrogen-ammonia energy technologies Foshan Xianhu Laboratory Foshan 528200 China

Creating synthetic interface from non-life materials to improve Shewanella stability and endow them with precise functionalities could revolutionize cell-based biotechnologies. Herein, a stable and cytoprotective biointerface on Shewanella surface are rapidly generated through immediate coordination complexes of TA and Fe (Ⅲ) ions. TA-Fe Ⅲ -based biointerface engineered Shewanella cells can be endowed with extremophile properties of resistance to high temperature, osmotic stress, UV light and lysozyme, and can be released from TA-Fe Ⅲ biointerface through the acidic condition-triggered decomplexation. Furthermore, various functional materials with abiotic properties like conductivity and magnetism can be induced onto surface of Shewanella through co-self-assembly with TA-Fe Ⅲ interface.

关键词： Cell-interface engineering Cytoprotective Degradable Precise functions TA-FeⅢ

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Chemical-diffusion Metamaterials with "Plug and Switch" Modules for Ion Cloaking, Concentrating and Selection: Design and Experiments

Research Square

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Research Square 2021年

作者： Li, Yang Yu, Chengye Liu, Chuanbao Xu, Zhengjiao Su, Yan Jing Qiao, Lijie Zhou, Ji Bai, Yang Beijing Advanced Innovation Center for Materials Genome Engineering Institute for Advanced Materials and Technology University of Science and Technology Beijing Beijing100083 China School of Materials Science and Engineering University of Science and Technology Beijing Beijing100083 China State Key Laboratory of New Ceramics and Fine Processing School of Materials Science and Engineering Tsinghua University Beijing100084 China

The outstanding abilities of metamaterials to manipulate physical fields have been extensively studied in wave-based fields. Recently, this research has been extended to diffusion fields. Chemical diffusion behavior is crucial in a wide range of fields including the transportation of various matters, and metamaterials with the ability to manipulate diffusion with practical applications associated with chemical and biochemical engineering have not yet been proposed. In this work, we propose the idea of a "plug and switch" metamaterial to achieve the switchable functions of ion cloaking, concentrating and selection in liquid solvents by plugging modularized functional units into a functional motherboard. The respective modules are theoretically designed based on scattering cancellation, and the properties are verified by both simulations and experiments. Plugging in any module barely affects the environmental diffusion field, but the module choice impacts different diffusion behaviors in the central region. Cloaking strictly hinds ion diffusion, and concentrating promotes a large diffusion flux, while cytomembrane-like ion selection permits the entrance of some ions but blocks others. In addition to property characterization, these functions are demonstrated in special applications. The concentrating function is experimentally verified by catalytic enhancement, and the ion selection function is verified by protein protection. This work not only demonstrates the effective manipulation of metamaterials in terms of chemical diffusion behavior but also shows that the "plug and switch" design is extensible and multifunctional, and facilitates novel applications including sustained drug release, catalytic enhancement, bioinspired cytomembranes, etc. © 2021, CC BY.

关键词： Ions

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Antagonism between ambient ozone increase and urbanization-oriented population migration on Chinese cardiopulmonary mortality

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The Innovation 2023年第6期4卷 48-58页

作者： Haitong Zhe Sun Junchao Zhao Xiang Liu Minghao Qiu Huizhong Shen Serge Guillas Chiara Giorio Zosia Staniaszek Pei Yu Michelle W.L.Wan Man Mei Chim Kim Robin van Daalen Yilin Li Zhenze Liu Mingtao Xia Shengxian Ke Haifan Zhao Haikun Wang Kebin He Huan Liu Yuming Guo Alexander T.Archibald lYusuf Hamied Department of Chemistry University of CambridgeCambridge CB21EWUK Department of Earth Sciences University of CambridgeCambridge CB23EQUK Department of Environmental Health and Engineering Johns Hopkins Bloomberg School of Public HealthBaltimoreMD 21205USA State Key Joint Laboratory of ESPC State Environmental Protection Key Laboratory of Sources and Control of Air Pollution ComplexSchool of EnvironmentTsinghua UniversityBejing 100084China School of Atmospheric Sciences Nanjing UniversityNanjing 210023China Department of Earth System Science Stanford UniversityStanfordCA 94305USA School of Environmental Science and Engineering Southern University of Science and TechnologyShenzhen 518p55China Department of Statistical Science University College LondonLondon WC1E 6BTUK The Alan Turing Institute London NW12DBUK School of Public Heath and Preventive Medicine Monash UniversityMelboumeVIC 3004Australia British Heart Foundation Cardiovascular Epidemiology Unit Department of Public Health and Primary CareUniversity of CambridgeCambridge CB18RNUK Heart and Lung Research Institute University of CambridgeCambridge CB20BDUK Baroelona Supercomputing Center Department of Earth Sciences08034 BarcelonaSpain School of Environmental Science and Engineering Nanjing University of Information Science and TechnologyNanjing 210044China Department of Mathematics University of CaliformiaLos AngelesLos AngelesCA 90095USA State Key Laboratory of New Ceramics and Fine Processing KeyLaboratory of Advanced Materials of Ministry of EducationSchool of Materials Science and EngineeringTsinghua UniversityBeijing 100084China Department of Engineering University of CambridgeCambridge CB21PZUK National Centre for Atmospheric Science Cambridge CB21EWUK

Everincreasing ambient ozone(O3)pollution in China has been exacerbating cardiopulmonary premature ***,the urban-rural exposure inequity has seldom been ***,we assess populationcale 03 exposure and mortality burdens between 1990 and 2019 based on integrated pollution tracking and epidemiological *** find Chinese population have been suffering from climbing 03 exposure by 4.3±2.8 ppb per decade as a result of rapid urbanization and growing prosperity of socioeconomic *** residents are broadly exposed to 9.8±4.1 ppb higher ambient O3 than the adjacent urban citizens,and thus urbaniza-tion-oriented migration compromises the exposure-associated mortality on total *** excess premature deaths attributable to longterm 03 exposure,373,500(95%uncertainty interval[U]:240,600-510,900)in 2019,is underestimated in previous studies due to ignorance of cardiovascular *** 03 pollution policy should focus more on rural population who are facing an aggravating threat of mortality risks to ameliorate environmental health injustice.

关键词： ambient urban urbanization

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Interfacial component coupling effects induce electron redistribution for enhanced hydrazine-assisted hydrogen production at ampere-level current densities

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Nano Energy 2025年 142卷

作者： Xinru Zhao Hongshun Zheng Huachuan Sun Mingpeng Chen Boxue Wang Qingjie Lu Bin Xiao Tong Zhou Dequan Li Guoyang Qiu Jin Zhang Yumin Zhang Feng Liu Tianwei He Hui Pan Chundong Wang Qingju Liu Yunnan Key Laboratory for Micro/Nano Materials & Technology National Center for International Research on Photoelectric and Energy Materials School of Materials and Energy Yunnan University Kunming 650091 PR China Yunnan Precious Metals Laboratory Co. Ltd. Kunming 650106 PR China Institute of Applied Physics and Materials Engineering (IAPME) University of Macau Taipa 999078 Macao School of Integrated Circuits State Key Laboratory of New Textile Materials and Advanced Processing Huazhong University of Science and Technology Wuhan 430074 PR China

Hydrazine-assisted hydrogen production promises to boost water electrolysis with low energy consumption. Herein, a silver willow flower-like heterostructure is constructed by coupling Pt nanoparticles with NiMoO 4 nanowires that are annealed under nitrogen (N 2 ) conduction (Pt@NMO-N 2 ). Comprehensive electronic structure characterization and theoretical calculations reveal that the built-in electric field (BEF) significantly promotes the transfer of electrons from the oxygen vacancy-rich carrier (NMO-N 2 ) to the Pt sites, thereby accelerating the adsorption and desorption of H-intermediates during the hydrogen evolution reaction (HER) process. Meanwhile, the interfacial component coupling effects and oxygen vacancies result in the d-band center (ε d ) shift down to promote the dehydrogenation process from *NH 4 to *NH 3 in the hydrazine oxidation reaction (HzOR). Additionally, the Pt@NMO-N 2 exhibits super-hydrophilicity and superaerophobic properties, which synergistically enhance mass transfer. Impressively, the Pt@NMO-N 2 exhibits low overpotentials of 149 and 180 mV at 1000 mA cm –2 for the HER in alkaline freshwater and seawater, respectively, and it only requires a work potential of 121 mV to achieve 1000 mA cm –2 for the HzOR. Notably, the Pt@NMO-N 2 (+) || Pt@NMO-N 2 (−) electrolyzer operates at a low voltage of 0.32 V to reach 500 mA cm –2 for the hydrazine-assisted water splitting. Furthermore, the self-supported Pt@NMO-N 2 catalyst, employed as the cathode in an anion exchange membrane (AEM) electrolyzer, requires only 1.77 V to achieve 500 mA cm⁻² at T  = 60 ℃. This work opens avenues for future research on advanced heterostructures in sustainable energy applications.

关键词： Diffusion in liquids

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Nitrate wastewater regeneration in coastal arid region

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Science Bulletin 2025年

作者： Zhang, Xia Feizpoor, Solmaz Humayun, Muhammad Fu, Xianbiao Wang, Chundong School of Integrated Circuits State Key Laboratory of New Textile Materials and Advanced Processing Huazhong University of Science and Technology Wuhan430074 China Energy Water and Environment Lab College of Humanities and Sciences Prince Sultan University Riyadh11586 Saudi Arabia Department of Materials Science and Engineering National University of Singapore Singapore117576 Singapore

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Self-Accelerating Diels–Alder Reaction for Preparing Polymers of Intrinsic Microporosity

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Angewandte Chemie 2023年第24期135卷

作者： Dr. Yuanxing Zhang Prof. Qingquan Tang Dr. Zi Li Prof. Ke Zhang Laboratory of Polymer Physics and Chemistry Beijing National Laboratory for Molecular Sciences Institute of Chemistry The Chinese Academy of Sciences Beijing 100190 China University of Chinese Academy of Sciences Beijing 100049 China College of Materials Science and Engineering State Key Laboratory of New Textile Materials & Advanced Processing Technology Wuhan Textile University Wuhan Hubei 430200 China

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Cryogenic Rolling Impacts on Microstructures and Properties of a Novel Medium Heavy Alloy

SSRN

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SSRN 2022年

作者： Shu, Kang-Hao Xiong, Yi Li, Yong Yue, Yun Chen, Zheng-Ge Zha, Xiao-Qin Han, Shun Wang, Chun-Xu School of Materials Science and Engineering Henan University of Science and Technology Luoyang471023 China Collaborative Innovation Center of New Nonferrous Metal Materials and Advanced Processing Technology Ministry of Science and Technology Henan Luoyang471023 China Central Iron and Steel Research Institute Beijing100081 China State Key Laboratory of Laser Interaction with Matter Northwest Institute of Nuclear Technology Shaanxi Xi’an710024 China Luoyang Ship Material Research Institute Henan Luoyang471000 China

Based on the design concept of solution and aging strengthening, a novel medium heavy alloy (MHA) was prepared for the first time through the melting-casting-forging process. The obtained MHA was cryogenically rolled and characterized to uncover evolutions of microstructural and mechanical properties following cryorolling conditions. Results show that equiaxial grains are elongated along the rolling direction and the fiber texture can be observed with the increase of deformation, during which a large number of slip bands are generated to coordinate the intensive plastic deformation. The sharp increase of dislocation density can promote the dislocation interaction significantly, which in turn refines the grain size of MHA down to nanometer scale. The strength and hardness of MHA increase significantly with the deformation, while the elongation decreases sharply. The fracture morphology changes from a typical ductile fracture for the undeformed sample to quasi-cleavage and ductile mixed fracture for the 90% cryogenic rolled one. © 2022, The Authors. All rights reserved.

关键词： Cryogenics

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technology Roadmap for Flexible Sensors

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ACS NANO 2023年第6期17卷 5211-5295页

作者： Luo, Yifei Abidian, Mohammad Reza Ahn, Jong-Hyun Akinwande, Deji Andrews, Anne M. Antonietti, Markus Bao, Zhenan Berggren, Magnus Berkey, Christopher A. Bettinger, Christopher John Chen, Jun Chen, Peng Cheng, Wenlong Cheng, Xu Choi, Seon-Jin Chortos, Alex Dagdeviren, Canan Dauskardt, Reinhold H. Di, Chong-an Dickey, Michael D. Duan, Xiangfeng Facchetti, Antonio Fan, Zhiyong Fang, Yin Feng, Jianyou Feng, Xue Gao, Huajian Gao, Wei Gong, Xiwen Guo, Chuan Fei Guo, Xiaojun Hartel, Martin C. He, Zihan Ho, John S. Hu, Youfan Huang, Qiyao Huang, Yu Huo, Fengwei Hussain, Muhammad M. Javey, Ali Jeong, Unyong Jiang, Chen Jiang, Xingyu Kang, Jiheong Karnaushenko, Daniil Khademhosseini, Ali Kim, Dae-Hyeong Kim, Il-Doo Kireev, Dmitry Kong, Lingxuan Lee, Chengkuo Lee, Nae-Eung Lee, Pooi See Lee, Tae-Woo Li, Fengyu Li, Jinxing Liang, Cuiyuan Lim, Chwee Teck Lin, Yuanjing Lipomi, Darren J. Liu, Jia Liu, Kai Liu, Nan Liu, Ren Liu, Yuxin Liu, Yuxuan Liu, Zhiyuan Liu, Zhuangjian Loh, Xian Jun Lu, Nanshu Lv, Zhisheng Magdassi, Shlomo Malliaras, George G. Matsuhisa, Naoji Nathan, Arokia Niu, Simiao Pan, Jieming Pang, Changhyun Pei, Qibing Peng, Huisheng Qi, Dianpeng Ren, Huaying Rogers, John A. Rowe, Aaron Schmidt, Oliver G. Sekitani, Tsuyoshi Seo, Dae-Gyo Shen, Guozhen Sheng, Xing Shi, Qiongfeng Someya, Takao Song, Yanlin Stavrinidou, Eleni Su, Meng Sun, Xuemei Takei, Kuniharu Tao, Xiao-Ming Tee, Benjamin C. K. Thean, Aaron Voon-Yew Trung, Tran Quang Wan, Changjin Wang, Huiliang Wang, Joseph Wang, Ming Wang, Sihong Wang, Ting Wang, Zhong Lin Weiss, Paul S. Wen, Hanqi Xu, Sheng Xu, Tailin Yan, Hongping Yan, Xuzhou Yang, Hui Yang, Le Yang, Shuaijian Yin, Lan Yu, Cunjiang Yu, Guihua Yu, Jing Yu, Shu-Hong Yu, Xinge Zamburg, Evgeny Zhang, Haixia Zhang, Xiangyu Zhang, Xiaosheng Zhang, Xueji Zhang, Yihui Zhang, Yu Zhao, Siyuan Zhao, Xuanhe Zheng, Yuanjin Zheng, Yu-Qing Zheng, Zijian Zhou, Tao Zhu, Bowen Zhu, Ming Zhu, Rong Zhu, Yangzhi Zhu, Yong Zou, Guijin Chen, Xiaodong 08-03 Innovis Singapore 138634 Republic of Singapore Innovative Centre for Flexible Devices (iFLEX) School of Materials Science and Engineering Nanyang Technological University Singapore 639798 Singapore Department of Biomedical Engineering University of Houston Houston Texas 77024 United States School of Electrical and Electronic Engineering Yonsei University Seoul 03722 Republic of Korea Department of Electrical and Computer Engineering The University of Texas at Austin Austin Texas 78712 United States Microelectronics Research Center The University of Texas at Austin Austin Texas 78758 United States Department of Chemistry and Biochemistry California NanoSystems Institute and Department of Psychiatry and Biobehavioral Sciences Semel Institute for Neuroscience and Human Behavior and Hatos Center for Neuropharmacology University of California Los Angeles Los Angeles California 90095 United States Colloid Chemistry Department Max Planck Institute of Colloids and Interfaces 14476 Potsdam Germany Department of Chemical Engineering Stanford University Stanford California 94305 United States Laboratory of Organic Electronics Department of Science and Technology Campus Norrköping Linköping University 83 Linköping Sweden Wallenberg Initiative Materials Science for Sustainability (WISE) and Wallenberg Wood Science Center (WWSC) SE-100 44 Stockholm Sweden Department of Materials Science and Engineering Stanford University Stanford California 94301 United States Department of Biomedical Engineering and Department of Materials Science and Engineering Carnegie Mellon University Pittsburgh Pennsylvania 15213 United States Department of Bioengineering University of California Los Angeles Los Angeles California 90095 United States School of Chemistry Chemical Engineering and Biotechnology Nanyang Technological University Singapore 637457 Singapore Nanobionics Group Department of Chemical and Biological Engineering Monash University Clayton Australia 3800 Monash

Humans rely increasingly on sensors to address grand challenges and to improve quality of life in the era of digitalization and big data. For ubiquitous sensing, flexible sensors are developed to overcome the limitations of conventional rigid counterparts. Despite rapid advancement in bench-side research over the last decade, the market adoption of flexible sensors remains limited. To ease and to expedite their deployment, here, we identify bottlenecks hindering the maturation of flexible sensors and propose promising solutions. We first analyze continued...challenges in achieving satisfactory sensing performance for real-world applications and then summarize issues in compatible sensor-biology interfaces, followed by brief discussions on powering and connecting sensor networks. Issues en route to commercialization and for sustainable growth of the sector are also analyzed, highlighting environmental concerns and emphasizing nontechnical issues such as business, regulatory, and ethical considerations. Additionally, we look at future intelligent flexible sensors. In proposing a comprehensive roadmap, we hope to steer research efforts towards common goals and to guide coordinated development strategies from disparate communities. Through such collaborative

关键词： soft materials mechanics engineering flexible electronics conformable sensors bioelectronics human-machine interfaces body area sensor networks technology translation sustainable electronics

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Spatial confinement of ruthenium nanoclusters in three-dimensional hierarchical porous carbon for high-performance lithium-oxygen batteries

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Carbon 2025年 243卷

作者： Xiaoyang Yang Wenxia Liu Xiaodong Lv Yuxue Zhang Chuanxin Hou Xiubo Xie Ping Ren Qingchao Liu Yunhai Zhu Wei Du School of Environmental and Material Engineering Yantai University Yantai 264005 China Green Catalysis Center and College of Chemistry Zhengzhou University Zhengzhou 450001 China State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile University Wuhan 430200 China Shandong University of Aeronautics Binzhou Shandong 256600 China

Lithium-oxygen (Li–O 2 ) batteries have attracted significant attention in the field of energy storage owing to their high energy density, environmental benignity, and low cost. To make Li–O 2 batteries practical, it is crucial to develop affordable and advanced cathodes with porous structures and high catalytic activity since the existing Li–O 2 batteries are troubled by the insoluble and chemically stable lithium peroxide (Li 2 O 2 ). Herein, Ru nanoclusters-modified hierarchical porous carbon (denoted RPC) is crafted from waste corn straw via a facile space-confined carbonization strategy. The natural fibrovascular structure of corn straw provides sufficient individual space for the accommodation of Li 2 O 2 . The ordered distribution of Ru nanoclusters with a controlled average size of ca. 4.3 nm induces uniform nucleation and growth of Li 2 O 2 . Benefiting from the synergy between the hierarchical structure and Ru catalyst, the Li – O 2 battery exhibits remarkable electrochemical properties, including excellent specific capacity (13940 mAh g −1 ) and long cycle stability (over 214 cycles). Density functional theory (DFT) calculations reveal that the Ru nanoclusters facilitate the decomposition of Li 2 O 2 , leading to a lower overpotential. This versatile method provides a promising approach for reusing waste biomass in the construction of high-performance Li–O 2 battery cathodes.

关键词： Hierarchical porous carbon Lithium-oxygen battery Ru nanoclusters

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