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Science China Materials 2021年第1期64卷 128-136页

作者： Changjin Xu Yue Zhang Jing Chen Song Li Ya-Wen Zhang Gaowu Qin key lab for Anisotropy and Texture of Materials(moe) School of Materials Science and EngineeringNortheastern UniversityShenyang110819China Institute of Microscale Optoelectronics(IMO) Shenzhen UniversityShenzhen518060China Beijing National laboratory for Molecular Sciences State Key Laboratory of Rare Earth Materials Chemistry and ApplicationsPKU-HKU Joint Laboratory in Rare Earth Materials and Bioinorganic ChemistryPeking UniversityBeijing100871China Research Center for Metallic Wires Northeastern UniversityShenyang110819China

Noble metals are downsized to nano-/subnanoscale to improve their catalytic activity and ***,the stabilities in chemical state and catalytic performance of these nanocatalysts often suffer during harsh *** Pt nanoparticles(NPs)supported on CeO2,activated oxygen diffused from the support over-stabilizes the active sites of Pt,degrading its performance at mild *** this work,Pt nanocatalysts with unique structure of triple-junction are synthesized by selectively growing Pt NPs on the carbon-CeO2 ***,the Pt NPs exhibit much enhanced catalytic stability and high activity for CO oxidation at mild *** enhancement is attributed to electron donation from graphitized carbon and the confinement effect from the high-density nanopores of the CeO2 *** triple-junction of Pt-C-CeO2,combining the merits of CeO2 for activating O2 and electron donating capability of carbon,provides new inspiration to the fabrication of high-performance nanocatalysts.

关键词： catalyst stability Pt nanocatalyst interface confinement

Development and characterization of hot dip aluminide coated stainless steel 316L

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Journal of Central South University 2018年第11期25卷 2578-2588页

作者： Sehrish MUKHTAR Waqas ASGHAR Zubair BUTT Zaheer ABBAS Mudaser ULLAH Rana ATTA-UR-REHMAN College of engineering and Emerging Technologies University of the PunjabLahorePakistan University of engineering and Technology Taxila 47050TaxilaPakistan Ningbo Institute of Materials Technology and engineering(NIMTE) Chinese Academy of Sciences(CAS)Ningbo 315201China Mechatronics engineering Department University of Engineering and Technology TaxilaChakwal Campus48800ChakwalPakistan moe key lab for Liquid-Solid Structure Evolution and Materials Processing Institute of Materials JoiningShandong UniversityJi’nan 250061China Department of Mechanical engineering CETUniversity of SargodhaPakistan

Stainless steel(SS)grade 316L is used for orthopedic implants due to its biocompatibility;yet the effort should be done to minimize the carcinogenic and inflammatory effects related to SS 316L *** this research,aluminide coating of Al–Si alloy on SS 316L is characterized by using optical microscopy,energy dispersive spectroscopy(EDS),nano-indentation and corrosion testing *** dip aluminizing process is used to coat the SS 316L specimens at 765°C for 2 min immersion *** of the specimens are also diffusion treated in a Muffle furnace at 550°C for 4 h to produce diffused specimens of SS *** examination shows the formation of flat coating/substrate interface due to Si *** analysis confirms the formation of complex intermetallic at the coating/substrate interface which finally results in increasing the hardness and corrosion resistance properties of coating.

关键词： stainless steel aluminide coating microstructure intermetallics nano-indentation corrosion testing

Integration of partially phosphatized bimetal centers into trifunctional catalyst for high-performance hydrogen production and flexible Zn-air battery

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Science China Materials 2022年第5期65卷 1176-1186页

作者： Miaosen Yang Yifan Liu Jiaqiang Sun Shusheng Zhang Xijun Liu Jun Luo School of Chemical engineering Northeast Electric Power UniversityJilin 132012China Nanchang Institute of Technology Nanchang 330044China College of Physics and Optoelectronic engineering Shenzhen UniversityShenzhen 518060China State key laboratory of Coal Conversion Institute of Coal ChemistryChinese Academy of SciencesTaiyuan 030001China College of Chemistry Zhengzhou UniversityZhengzhou 450000China Institute for New Energy Materials&Low-Carbon Technologies and Tianjin key lab for Photoelectric Materials&Devices School of Materials Science and EngineeringTianjin University of TechnologyTianjin 300384China moe key laboratory of New Processing Technology for Non-Ferrous Metals and Materials and Guangxi Key Laboratory of Processing for Non-Ferrous Metals and Featured MaterialsSchool of ResourceEnvironments and MaterialsGuangxi UniversityNanning 530004China

The development of robust and efficient trifunctional catalysts showing excellent oxygen evolution reaction(OER), oxygen reduction reaction(ORR) and hydrogen evolution reaction(HER) kinetics has been ***, we prepared a hybrid iron and cobalt-based metal alloy phosphide on a phosphorus and nitrogen co-doped carbon substrate(Fe Co-P/PNC) as a catalyst using a one-step Pregulation method. The catalyst exhibited a positive half-wave potential of 0.86 V versus the reversible hydrogen electrode(RHE) for ORR, and low overpotentials of 350 and 158 m V for OER and HER, respectively, to achieve a current density of10 m A cm^(-2). Density functional theory calculations demonstrated the dominant role of P in both Fe Co phosphide and carbon matrix, which led to the good ORR, OER and HER kinetics. The assembled aqueous and flexible Zn-air batteries with Fe Co-P/PNC as the air cathode displayed excellent peak power densities of 195.1 and 90.8 m W cm^(-2), respectively, as well as outstanding charging-discharging performance, long lifetime, and high flexibility. Moreover, the self-powered overall water-splitting cell exhibited a low working voltage of1.71 V to achieve a current density of 10 m A cm^(-2), confirming its excellent multifunctional OER/ORR/HER activity.

关键词： trifunctional electrocatalyst multi-active sites alloy/phosphide hydrogen production flexible Zn-air battery

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单晶二维材料生长中的层数调控机制

Science Bulletin 2023年第23期68卷 2936-2944,M0005页

作者：张磊宁孔潇董际臣丁峰 Beijing key laboratory of Construction Tailorable Advanced Functional Materials and Green Applications MOE Key Laboratory of Cluster ScienceSchool of Chemistry and Chemical EngineeringBeijing Institute of TechnologyBeijing 100081China State key laboratory of Information Functional Materials 2020 X-LabShanghai Institute of Microsystem and Information TechnologyChinese Academy of SciencesShanghai 200050China Beijing National laboratory for Molecular Sciences Key Laboratory of Organic SolidsInstitute of ChemistryChinese Academy of SciencesBeijing 100190China School of Chemical Sciences University of Chinese Academy of SciencesBeijing 100049China Faculty of Materials Science and engineering/Institute of Technology for Carbon Neutrality Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen 518055China

最近,通过将外延生长的多层二维晶畴进行无缝拼接,研究人员成功实现了晶圆级单晶二维多层材料的合成.不同于以往观察到的类似婚礼蛋糕或倒置婚礼蛋糕结构,这些多层二维晶畴中所有层都具有完全相同的尺寸和形状,即多层同步生长.基于此,... 详细信息

最近,通过将外延生长的多层二维晶畴进行无缝拼接,研究人员成功实现了晶圆级单晶二维多层材料的合成.不同于以往观察到的类似婚礼蛋糕或倒置婚礼蛋糕结构,这些多层二维晶畴中所有层都具有完全相同的尺寸和形状,即多层同步生长.基于此,本文通过理论计算探索了多层二维材料的不同生长模式,提出了多层同步生长的物理模型,揭示了基底上液体异质表面层的形成是保证同步生长的关键性因素.作者指出在生长过程中,多层二维材料嵌入在衬底的异质表面层中,同时底层与固态基底直接接触.异质层能有效钝化二维材料的边缘,从而防止这些活性边缘的融合,而异质层与基底之间的高界面则迫使不同层的二维材料边缘保持同步生长.通过对多层同步生长机理的深入了解,本文揭示了发生多层同步生长的条件,为合成层数可控的晶圆级单晶二维材料提供了新的思路.

关键词： 2D materials Epitaxial growth Thickness control Synchronic growth

Stretchable Luminescent Perovskite‑Polymer Hydrogels for Visual‑Digital Wearable Strain Sensor Textiles

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Advanced Fiber Materials 2023年第5期5卷 1671-1684页

作者： Xinxin Li Long Chen Shuanglong Yuan Hua Tong Qilin Cheng Huidan Zeng Lei Wei Qichong Zhang key laboratory for Ultrafine Materials of Ministry of Education School of Materials Science and EngineeringEast China University of Science and TechnologyShanghai 200237China key laboratory of Multifunctional Nanomaterials and Smart Systems Suzhou Institute of Nano-Tech and Nano-BionicsChinese Academy of SciencesSuzhou 215123China School of Electrical and Electronic engineering Nanyang Technological UniversitySingapore 639798Singapore

The integration of a display function with wearable interactive sensors offers a promising way to synchronously detect physiological signals and visualize pressure/***,combining these two functions in a strain sensor textile is a longstanding challenge due to the physical separation of sensors and display ***,a water-stable luminescent perovskite hydrogel(emission band approximately 25 nm)is constructed by blending as-prepared CsPbBr_(3)@PbBr(OH)with stretchable polyacrylamide(PAM)*** facile introduction of CsPbBr_(3)@PbBr(OH)endows the hydrogels with excellent optical properties and a high mechanical strength of 51.3 kPa at a fracture strain of 740%.Interestingly,the resulting hydrogels retain bright green fluorescence under conditions including water,ultraviolet light,and extensive stretching(>700%).As a proof-of-concept,a novel wearable stretchable strain sensor textile based on these hydrogels is developed,and it displays visual-digital synergetic strain detection *** can perceive various motions on the human body in real time with electronic output signals from changes in resistance and simultaneously readable optical output signals,whether on land or *** work provides a meaningful guide to rationally design perovskite hydrogels and accelerates the development of wearable visual-digital strain sensor textiles.

关键词： Metal halide perovskites Stretchable luminescent hydrogels Strain sensor textiles Amphibious Visualdigital synergies

Simple and scalable synthesis of super-repellent multilayer nanocomposite coating on Mg alloy with mechanochemical robustness,high-temperature endurance and electric protection

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Journal of Magnesium and Alloys 2022年第9期10卷 2446-2459页

作者： Shuqi Wang Yaming Wang Junchen Chen Yongchun Zou Jiahu Ouyang Dechang Jia Yu Zhou Institute for Advanced Ceramics Harbin Institute of TechnologyHarbin 150080China key laboratory of Advanced Structure-Function Integrated Materials and Green Manufacturing Technology Harbin Institute of TechnologyHarbin 150001China Center of Analysis and Measurement Harbin Institute of TechnologyHarbin 150001China School of New Energy and Materials Southwest Petroleum UniversityChengdu 610500China

Multi-functionalization is the future development direction for protective coatings on metal surface,but has not yet been explored a *** effective integration of multiple functions into one material remains a huge ***,a superhydrophobic multilayer coating integrated with multidimensional organic-inorganic components is designed on magnesium alloy via one-step plasma-induced thermal field assisted crosslinking deposition(PTCD)processing followed by after-thermal *** porous MgO ceramic layer and polytetrafluoroethylene(PTFE)nano-particles work as the bottom layer skeleton and filler components separately,forming an organic-inorganic multilayer structure,in which organic nano-particles can be crosslinked and cured to form a compact polymer-like outer layer with hierarchical surface ***,the chemical robustness after prolonged exposure to aqua regia,strong base and simulated seawater solution profits from polymer-like nanocomposite layer uniformly and compactly across the film ***,the self-similar multilayer structure coating endows it attractive functions of strong mechanical robustness(>100th cyclic rotary abrasion),stable and ultra-low friction coefficient(about 0.084),high-temperature endurance,and robust *** organic-inorganic multilayer coating also exhibits high insulating property with breakdown voltage of 1351.8±42.4 V,dielectric strength of 21.4±0.7 V/μm and resistivity of 3.2×10^(10)Ω·*** excellent multifunction benefits from ceramic bottom skeleton,the assembly and deposition of multidimensional nano-particles,and the synergistic effect of organic inorganic *** study paves the way for designing next generation protective coating on magnesium alloy with great potential for multifunctional applications.

关键词： Magnesium alloy Multifunctional multilayer coating Mechanochemical robustness Robust wettability High-temperature endurance

Time-sequential color code division multiplexing holographic display with metasurface

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Opto-Electronic Advances 2023年第8期6卷 8-16页

作者： Xin Li Qinmiao Chen Xue Zhang Ruizhe Zhao Shumin Xiao Yongtian Wang Lingling Huang Beijing engineering Research Center of Mixed Reality and Advanced Display School of Optics and PhotonicsBeijing Institute of TechnologyBeijing 100081China moe key laboratory of Photoelectronic Imaging Technology and System and MIIT Key Laboratory of Photonics Information TechnologySchool of Optics and PhotonicsBeijing Institute of TechnologyBeijing 100081China State key laboratory on Tunable Laser Technology Ministry of Industry and Information Technology Key Lab of Micro-Nano Optoelectronic Information SystemHarbin Institute of Technology(Shenzhen)Shenzhen 518055China National key laboratory of Science and Technology on Advanced Composites in Special Environments Harbin Institute of TechnologyHarbin 150080China Collaborative Innovation Center of Extreme Optics Shanxi UniversityTaiyuan 030006China

Color metasurface holograms are powerful and versatile platforms for modulating the amplitude,phase,polarization,and other properties of light at multiple operating ***,the current color metasurface holography can only realize static *** this study,we propose and demonstrate a multiplexing metasurface technique combined with multiwavelength code-division multiplexing(CDM)to realize dynamic *** code references are utilized to record information within a single metasurface and increase the information capacity and security for anticracks.A total of 48 monochrome images consisting of pure color characters and multilevel color video frames were reconstructed in dual polarization channels of the birefringent metasurface to exhibit high information density,and a video was displayed via sequential illumination of the corresponding code patterns to verify the ability of dynamic *** approach demonstrates significant application potential in optical data storage,optical encryption,multiwavelengthversatile diffractive optical elements,and stimulated emission depletion microscopy.

关键词： metasurface color holography dynamic display code division multiplexing

Critical Metals Ga,Ge and In in the Global Pb-Zn Deposits:Current Understanding,Challenges and Perspectives

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Journal of Earth Science 2023年第4期34卷 1308-1311页

作者： Yi Zheng Peng-Peng Yu Zhan-Ke Li Suo-Fei Xiong Ling-Li Zhou Jia-Xi Zhou ChangMing Wang Yu-Miao Meng Yu Zhang Ye-Jian Wang Jing Xu Yue Wu Lan-Xuan Guo Taiping Zhao Guangdong Provincial key lab of Geological Process and Mineral Resources Survey School of Earth Sciences and Geological EngineeringSun Yat-sen UniversityGuangzhou 510275China State key laboratory of Geological Processes and Mineral Resources School of Earth ResourcesChina University of GeosciencesWuhan 430074China Collaborative Innovation Center for Exploration of Strategic Mineral Resources China University of GeosciencesWuhan 430074China Department of Earth Sciences Vrije Universiteit Amsterdam de Boelelaan 1085Amsterdam 1081HVNetherlands key laboratory of Critical Minerals Metallogeny in Universities of Yunnan Province School of Earth SciencesYunnan UniversityKunming 650500China State key laboratory of Geological Processes and Mineral Resources School of Earth Sciences and ResourcesChina University of GeosciencesBeijing 100083China State key laboratory of Ore Deposit Geochemistry Institute of GeochemistryChinese Academy of ScienceGuiyang 550081China key laboratory of Metallogenic Prediction of Nonferrous Metals and Geological Environment Monitoring School of Geosciences and Info-PhysicsCentral South UniversityChangsha 410083China key laboratory of Submarine Geosciences Second Institute of OceanographyMinistry of Natural ResourcesHangzhou 310012China Zijin School of Geology and Mining Fuzhou UniversityFuzhou 350108China key laboratory of Exploration Technologies for Oil and Gas Resources Key Laboratory of Petroleum Geochemistry and EnvironmentYangtze UniversityWuhan 430100China Zhongjin Lingnan Nonfemetal Co. LtdShenzhen 518000China key laboratory of Mineralogy and Metallogeny Guangzhou Institute of GeochemistryChinese Academy of SciencesGuangzhou 510640China

BACKGROUND A spectrum of strategically critical metals, such as gallium(Ga), germanium(Ge) and indium(In), with promising applications in green and high-tech fields, are produced as byproducts of zinc ores in a variet... 详细信息

关键词： magmatic hydrothermal porphyry

Erratum： Silver-Doping Induced Lattice Distortion in TiO2 Nanoparticles [Chin. Phys. Lett. 26（2009）077809]

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Chinese Physics Letters 2009年第10期26卷 241-241页

作者：吴雪炜吴大建刘晓峻 Department of Electronic Science and engineering Key Lab of Modern Acoustics of MOE Nanjing University Nanjing 210093 State key laboratory of Electrical Insulation and Power Equipment Xi'an Jiaotong University Xi'an 710049

We found an error in our previous report [Chin. Phys. Lett. 26（2009）077809] concerning the JCPDS data which was used to compare with our data. It should read as JCPDS No 21-1272 （α = 3.7850A, c = 9.5140A, c/α = 2... 详细信息

关键词： No English keyword

Scalable Electrophysiology of Millimeter-Scale Animals with Electrode Devices

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Biomedical engineering Frontiers 2023年第1期4卷 3-20页

作者： Kairu Dong Wen-Che Liu Yuyan Su Yidan Lyu Hao Huang Nenggan Zheng John A.Rogers Kewang Nan College of Pharmaceutical Sciences Zhejiang UniversityHangzhou 310058China National key laboratory of Advanced Drug Delivery and Release Systems Zhejiang UniversityHangzhou 310058China College of Biomedical engineering&Instrument Science Zhejiang UniversityHangzhou310027China Department of Gastroenterology Brigham and Women’s HospitalHarvard Medical SchoolBostonMA 02115USA College of Chemical and Biological engineering Zhejiang UniversityHangzhou 310058China Qiushi Academy for Advanced Studies Zhejiang UniversityHangzhou 310027China College of Computer Science and Technology Zhejiang UniversityHangzhou 310027China State key lab of Brain-Machine Intelligence Zhejiang UniversityHangzhou 310058China CCAI by moe and Zhejiang Provincial Government(ZJU) Hangzhou 310027China Querrey Simpson Institute for Bioelectronics Northwestern UniversityEvanstonIL 60208USA Department of Biomedical engineering Northwestern UniversityEvanstonIL 60208USA Department of Materials Science and engineering Northwestern UniversityEvanstonIL 60208USA Department of Mechanical engineering Northwestern UniversityEvanstonIL 60208USA Jinhua Institute of Zhejiang University Jinhua 321299China

Millimeter-scale animals such as Caenorhabditis elegans,Drosophila larvae,zebrafish,and bees serve as powerful model organisms in the fields of neurobiology and *** methods exist for recording large-scale electrophysiological signals from these *** approaches often lack,however,real-time,uninterrupted investigations due to their rigid constructs,geometric constraints,and mechanical mismatch in integration with soft *** recent research establishes the foundations for 3-dimensional flexible bioelectronic interfaces that incorporate microfabricated components and nanoelectronic function with adjustable mechanical properties and multidimensional variability,offering unique capabilities for chronic,stable interrogation and stimulation of millimeter-scale animals and miniature tissue *** review summarizes the most advanced technologies for electrophysiological studies,based on methods of 3-dimensional flexible bioelectronics.A concluding section addresses the challenges of these devices in achieving freestanding,robust,and multifunctional biointerfaces.

关键词： offering recording millimeter