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Frequency-Self-Adaptive Radio Frequency Power Harvester Enabled by Shape-Reconfigurable Liquid Metal

Electromagnetic Science 2024年第2期2卷 91-103页

作者： Cheng Zhang Yuchao Wang Zebin Zhu Hai Lin Kun Wang Xintong Shi Yi Du Chaoyun Song Long Ren Qiang Cheng Key Laboratory of Materials for High-Power Laser Shanghai Institute of Optics and Fine MechanicsChinese Academy of SciencesShanghai 201800China Hangzhou Institute for Advanced Study University of Chinese Academy of SciencesHangzhou 310024China College of Physical Science and Technology Central China Normal UniversityWuhan 430000China Center of Quantum and Matter Science and School of Physics Beihang UniversityBeijing 100191China Department of Engineering King’s College LondonLondon WC2R 2LSUK State Key Laboratory of Radio Frequency Heterogeneous Integration College of Electronics and Information EngineeringShenzhen UniversityShenzhen 518000China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing International School of Materials Science and EngineeringWuhan University of TechnologyWuhan 430000China State Key Laboratory of Millimeter Waves Southeast UniversityNanjing 210096China

Radio frequency(RF)energy harvester as an efficient tool for capturing and converting the flourishing ambient RF energy provides a promising solution for long-term powering the wireless sensor networks and the Internet of things(IoTs).However,the actual distribution of the environmental RF signals is dynamically frequency-dependent due to the diverse wireless terminals only interacting with specified *** take full advantage of the RF energy carrying this characteristic,an intelligent RF energy harvester is in demand to automatically sense the frequency information of an incident signal and conduct the corresponding RF-to-direct current transformation ***,to the best of my knowledge,a frequency-self-adaptive RF harvester is first presented with the help of the shape-reconfigurable liquid metal,which can precisely identify and efficiently convert an arbitrary signal from the frequency span of 1.8 to 2.6 *** with a microcontroller unit and a tensile system,the dynamic functionality of the entire system is comprehensively demonstrated,showing promising potential to significantly advance various fields,including sustainable IoT applications,green wearable technologies,and self-powered devices.

关键词： Liquid metal Radio frequency power harvesting Frequency-self-adaptive Broadband rectification

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Acid-catalyzed chemodivergent reactions of 2,2-dimethoxyacetaldehyde and anilines

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Chinese Chemical Letters 2021年第4期32卷 1419-1422页

作者： Luxia Guo Zihao Chen Hongmei Zhu Minghao Li Yanlong Gu Huazhong University of Science and Technology Hubei Key Laboratory of Material Chemistry and Service FailureWuhan 430074China State Key Laboratory for Oxo Synthesis and Selective Oxidation Lanzhou Institute of Chemical PhysicsLanzhou 730000China The Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan Shihezi UniversityShihezi 832004China

Chemodivergent reactions of 2,2-dimethoxyacetaldehyde and anilines were described,which were established on the basis of either a C—C bond cleavage or a rearrangement process of a reaction inte *** reactions proceeded in a condition-determined manner with good functional group *** the first model,2,2-dimethoxyacetaldehyde reacted with aniline to form a new C—N bond,in the presence of O_(2),via a C—C bond cleavage ***,in the second model,by performing the reaction in the absence of O_(2),Heyns rearrangement occurred and generated a new C—O bond to form methyl *** condition-determined reactions not only offered the new way for valueadded conversion of biomass-derived platform molecule,2,2-dimethoxyacetaldehyde,but also provided efficient methods for the synthesis of N-arylformamides and methyl phenylglycinates.

关键词： Condition-determined reaction Chemodivergent reaction 2 2-Dimethoxyacetaldehyde C-C bond cleavage Heyns rearrangement

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Oriented Growth for Efficient and Scalable Perovskite Solar Cells by Vapor-Solid Reaction

SSRN

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SSRN 2023年

作者： Duan, Changyu Zhong, Jialing Hu, Shenghan Dou, Yichen Lu, Jianfeng Cheng, Yi-Bing Ku, Zhiliang State Key Laboratory of Advanced Technologies for Materials Synthesis and Processing Wuhan University of Technology Wuhan430070 China State Key Laboratory of Silicate Materials for Architectures Wuhan University of Technology Wuhan430070 China

The precise control and understanding of crystal orientation in perovskite polycrystalline films are crucial for the development of efficient and stable devices. However, achieving this control remains a significant challenge. Herein, we have developed a PbI2 oriented growth strategy, combining with in-situ vapor-solid reaction transformations, to achieve oriented growth of full-vacuum perovskite films. GIWAXS analysis revealed the general pattern of PbI2 oriented vapor growth and in-situ vapor-solid reaction transformation in this two-step process. The resulting preferred orientation has effectively reduced trap states density, optimizing the carrier dynamics. As a result, champion efficiencies of 22.11% (0.148 cm2), 20.60% (1 cm2) and 19.41% (5 × 5 cm2 mini-modules) are achieved, which are the highest value for perovskite based on vapor-solid reaction. Additionally, the oriented growth method is applicable to a variety of guide layers and is extended to 30 × 30 cm2 film, demonstrating the universality and scalability of the method. © 2023, The Authors. All rights reserved.

关键词： Perovskite solar cells

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Single-cell yolk-shell nanoencapsulation for long-term viability with size-dependent permeability and molecular recognition

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国家科学评论（英文版） 2021年第4期8卷 120-136页

作者： Li Wang Yu Li Xiao-Yu Yang Bo-Bo Zhang N(o)elle Ninane Henk J.Busscher Zhi-Yi Hu Cyrille Delneuville Nan Jiang Hao Xie Gustaaf Van Tendeloo Tawfique Hasan Bao-Lian Su State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan 430070 China Laboratory of Inorganic Materials Chemistry (CMI) University of Namur Namur B-5000 Belgium State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan 430070 China Laboratory of Inorganic Materials Chemistry (CMI) University of Namur Namur B-5000 Belgium Namur Research Institute for Life Sciences (Narilis) University of Namur Namur B-5000 Belgium Department of Biomedical Engineering University of Groningen and University Medical Centre Groningen Groningen 9713 AV The Netherlands State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan 430070 China Nanostructure Research Centre (NRC) Wuhan University of Technology Wuhan 430070 China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan 430070 China School of Engineering and Applied Sciences Harvard University Cambridge MA 02138 USA Nanostructure Research Centre (NRC) Wuhan University of Technology Wuhan 430070 China Electron Microscopy for Materials Science (EMAT) University of Antwerp Antwerp B-2020 Belgium Cambridge Graphene Centre University of Cambridge Cambridge CB3 0FA UK

Like nanomaterials,bacteria have been unknowingly used for *** hold significant economic potential for fuel and medicinal compound *** full exploitation,however,is impeded by low biological activity and stability in industrial *** cellular encapsulation addresses these limitations,cell survival is usually compromised due to shell-to-cell contacts and low ***,we report ordered packing of silica nanocolloids with organized,uniform and tunable nanoporosities for single cyanobacterium nanoencapsulation using protamine as an electrostatic template.A space between the capsule shell and the cell is created by controlled internalization ofprotamine,resulting in a highly ordered porous shell-void-cell structure *** unique yolk-shell nanostructures provide long-term cell viability with superior photosynthetic activities and resistance in harsh *** addition,engineering the colloidal packing allows tunable shell-pore diameter for size-dependent permeability and introduction of new functionalities for specific molecular *** strategy could significantly enhance the activity and stability of cyanobacteria for various nanobiotechnological applications.

关键词： cell surface engineering protein internalization ordered colloidal packing high photosynthetic ability harsh condition resistance thiol-functionalization

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Enhanced Photocatalytic H_(2)-production Activity of CdS Nanoflower using Single Atom Pt and Graphene Quantum Dot as Dual Cocatalysts

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Chinese Journal of Structural Chemistry 2022年第6期41卷 6-14页

作者： Yi Yang Jinsong Wu Bei Cheng Liuyang Zhang Ahmed Abdullah Al-Ghamdi Swelm Wageh Youji Li State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Nanostructure Research Centre(NRC)Wuhan University of TechnologyWuhan 430070China Laboratory of Solar Fuel Faculty of Materials Science and ChemistryChina University of GeosciencesWuhan 430074China Department of Physics Faculty of ScienceKing Abdulaziz UniversityJeddah 21589Saudi Arabia College of Chemistry and Chemical engineering Jishou UniversityJishouHunan 416000China

Single-atom catalysts have high catalytic activity due to their unique quantum size effects and optimal atom ***,visi-ble-light-responsive photocatalysts were designed by coupling CdS with graphene quantum dots(GQDs)and platinum single atoms(PtSAs).GQDs and PtSAs were successively loaded on ultrathin CdS nanosheets through freeze-drying and in-situ photocatalytic *** synergistic effect between PtSAs and GQDs results in superior photocatalytic activity with a hydrogen production rate of 13488μmol h^(-1)g^(-1)as well as the maximum apparent quantum efficiency(AQE)of 35.5%in lactic acid aqueous solution,which is 62 times higher than that of pristine CdS(213μmol g^(-1)h^(-1)).The energy conversion efficiency is ca.13.05%.As a photosensitizer and an electron reservoir,GQDs can not only extend the light response of CdS to the visible-light region(400-800 nm),but also promotes the separation of photoinduced electron-hole ***,PtSAs,with unique electronic and geometric features,can provide more efficient proton reduction *** finding provides an effective strategy to remarkably improve the photocatalytic H_(2) production performance.

关键词： hierarchical nanostructure single-atom catalysts graphene quantum dots CdS nanosheets hydrogen production

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High-entropy alloy nanocrystals boosting photocatalytic hydrogen evolution coupled with selective oxidation of cinnamyl alcohol

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Chinese Journal of Catalysis 2025年第1期68卷 326-335页

作者： Xianglin Xiang Bei Cheng Bicheng Zhu Chuanjia Jiang Guijie Liang Faculty of Materials Science and Engineering Kunming University of Science and TechnologyKunming 650093YunnanChina State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070HubeiChina Laboratory of Solar Fuel Faculty of Materials Science and ChemistryChina University of GeosciencesWuhan 430078HubeiChina College of Environmental Science and Engineering Nankai UniversityTianjin 300350China Hubei Key Laboratory of Low Dimensional Arts and Science Hubei University of Arts and ScienceXiangyang 441053HubeiChina

Photocatalysis provides a promising solution to the worldwide shortages of energy and industrially important raw materials by utilizing sunlight for coupled hydrogen(H_(2))production with controllable organic ***,we demonstrate that PtFeNiCoCu high-entropy alloy(HEA)nanocrystals can act as efficient cocatalysts for H_(2)evolution coupled with selective oxidation of cinnamyl alcohol to cinnamaldehyde by cubic cadmium sulfide(CdS)quantum dots(QDs)with uniform sizes of 4.0±0.5 *** nanocrystals were prepared via a simple solvothermal approach,and were successfully integrated with CdS QDs by an electrostatic self-assembly method to construct HEA/CdS *** optimized HEA/CdS sample presented an enhanced photocatalytic H_(2)production rate of 7.15 mmol g^(-1)h^(-1),which was 13 times that of pure CdS ***,a cinnamyl alcohol conversion of 96.2%with cinnamaldehyde selectivity of 99.5%was achieved after photoreaction for 3 *** integration of HEA with CdS QDs extended the optical absorption edge from 475 to 484 *** d-band center analysis,Pt atoms in the HEA are the active sites for H_(2)evolution,exhibiting higher catalytic activity than pure ***,the band structure of the CdS QDs enables the oxidative transformation of cinnamyl alcohol to cinnamaldehyde with high ***,femtosecond transient absorption spectroscopy shows that HEA can significantly promote the separation of photogenerated carriers in CdS,which is vital for achieving enhanced photocatalytic *** work inspires atomic-level design of photocatalytic materials for coordinated production of green energy carriers and value-added products.

关键词： Artificial photosynthesis d-Band center Photocatalytic hydrogen evolution Quantum dots Value-added organic synthesis

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银掺杂镍的硫醇盐类团簇用于非均相电催化二氧化碳还原

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Science China materials 2023年第1期66卷 407-412页

作者：田凡李旺轩郭文锦李广芳陈嵘 School of Chemistry and Environmental Engineering Wuhan Institute of TechnologyWuhan 430205China State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile UniversityWuhan 430200China Key Laboratory of Material Chemistry for Energy Conversion and Storage(Ministry of Education) Hubei Key Laboratory of Material Chemistry and Service FailureSchool of Chemistry and Chemical EngineeringHuazhong University of Science and TechnologyWuhan 430074China

精细调控具有原子尺度精确的团簇结构并将其应用于非均相催化研究,对于从分子水平阐明催化反应机制,明确催化反应活性位具有重要意义.本文基于环已硫醇保护的Ni_(4)团簇体系,成功制备了一种全新的Ni_(3)Ag_(2)双金属团簇,该团簇为Ni_(4... 详细信息

精细调控具有原子尺度精确的团簇结构并将其应用于非均相催化研究,对于从分子水平阐明催化反应机制,明确催化反应活性位具有重要意义.本文基于环已硫醇保护的Ni_(4)团簇体系,成功制备了一种全新的Ni_(3)Ag_(2)双金属团簇,该团簇为Ni_(4)团簇中一个Ni原子被两个Ag原子取代的结果.研究发现将该团簇用于非均相电催化二氧化碳还原,Ni_(3)Ag_(2)双金属团簇催化二氧化碳还原产生一氧化碳的法拉第效率可达90%以上,而母体结构Ni_(4)团簇的催化产物主要为氢气.对照实验与DFT理论计算结果表明,电解中去配体过程对于Ni_(3)Ag_(2)团簇的高选择性催化具有重要作用.其催化二氧化碳选择性还原的主要活性位为去配体后暴露出的Ni原子而非Ag原子.

关键词：非均相催化二氧化碳还原团簇结构活性位一氧化碳选择性催化选择性还原原子尺度

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Powder metallurgy of high-entropy alloys and related composites: A short review

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International Journal of Minerals,Metallurgy and materials 2021年第6期28卷 931-943页

作者： Bo-ren Ke Yu-chen Sun Yong Zhang Wen-rui Wang Wei-min Wang Pei-yan Ma Wei Ji Zheng-yi Fu State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China Beijing Advanced Innovation Center of Materials Genome Engineering State Key Laboratory for Advanced Metals and MaterialsUniversity of Science and Technology BeijingBeijing 100083China School of Mechanical Engineering University of Science and Technology BeijingBeijing 100083China School of Physics and Astronomy Shanghai Jiao Tong UniversityShanghai 200240China School of Chemistry Chemical Engineering and Life ScienceWuhan University of TechnologyWuhan 430070China

High-entropy alloys(HEAs)have attracted increasing attention because of their unique properties,including high strength,hardness,chemical stability,and good wear *** metallurgy is one of the most important methods used to fabricate HEA *** paper introduces the methods used to synthesize HEA powders and consolidate HEA *** phase transformation,microstructural evolution,and mechanical properties of HEAs obtained by powder metallurgy are *** also address HEA-related materials such as ceramic–HEA cermets and HEA-based composites fabricated by powder metallurgy.

关键词： high-entropy alloys powder metallurgy mechanical alloying consolidation

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在导电陶瓷基体中加入hBN薄片来创制材料性能的各向异性

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Science China materials 2023年第11期66卷 4317-4325页

作者：梁华岳邹冀刘晶晶顾熠涵季伟王子涵王为民傅正义 Hubei Longzhong Laboratory Wuhan University of Technology Xiangyang Demonstration ZoneXiangyang 441000China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China School of Materials Science and Engineering Wuhan University of TechnologyWuhan 430070China Jingdezhen Huaxun Special Ceramics Co. Ltd.Jingdezhen 333000China

导电陶瓷的物理性能由连续的导电基体所决定,调控困难.在这项研究中,通过在陶瓷基体中引入hBN薄片,成功实现了导电陶瓷力学和物理性能各向异性的调控.以包含TiN、Al、硼和hBN的混合粉末为原料,通过放电等离子烧结制备了两种hBN含量不同... 详细信息

导电陶瓷的物理性能由连续的导电基体所决定,调控困难.在这项研究中,通过在陶瓷基体中引入hBN薄片,成功实现了导电陶瓷力学和物理性能各向异性的调控.以包含TiN、Al、硼和hBN的混合粉末为原料,通过放电等离子烧结制备了两种hBN含量不同的导电TiB_(2)-AlNhBN陶瓷.在垂直于烧结压力的方向上,TiB_(2)-AlN-60vol%hBN陶瓷在室温下的弯曲强度、断裂韧性、电导率和热导率分别为151±6.34MPa、2.62±0.31MPam^(1/2)、5.3×10^(5)S m^(−1)和77.87Wm^(-1)K^(-1).而在平行于烧结压力的方向上,室温电导率和热导率分别降低到2.0×10^(5)S m^(−1)和32.25Wm^(-1)K^(-1).这些差异是通过在导电基体中加入少量额外排列的hBN薄片而产生的,为材料选择和设计提供了新的机会.

关键词： hexagonal boron nitride texture microstructure mechanical property physical property

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Bilayer metal halide perovskite for efficient and stable solar cells and modules

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materials Futures 2022年第4期1卷 53-72页

作者： Yanqing Zhu Min Hu Mi Xu Bo Zhang Fuzhi Huang Yi-Bing Cheng Jianfeng Lu State Key Laboratory of Silicate Materials for Architectures Wuhan University of TechnologyWuhan 430070People’s Republic of China School of Electronic and Electrical Engineering Hubei Province Engineering Research Centre for Intelligent Micro-Nano Medical Equipment and Key TechnologiesWuhan Textile UniversityWuhan 430200People’s Republic of China Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory Foshan 528216People’s Republic of China Shanxi Lu’An Photovoltaics Technology Co. LtdChangzhi 046011People’s Republic of China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070People’s Republic of China

To reach the target of carbon neutral,a transition from fossil energy to renewable energy is *** technology is considered one of the most prominent sources of renewable ***,metal halide perovskite materials have attracted tremendous interest in the areas of optoelectronic devices due to their ease of processing and outstanding *** date,perovskite solar cells(PSCs)have shown high power conversion efficiency up to 25.7%and 31.3%for the perovskite-silicon tandem solar cells,which promises to revolutionize the PV ***,the stability of PSCs under operating conditions has yet to match state-of-the-art silicon-based solar cell technology,in which the stability of the absorbing layer and relevant interfaces is the primary *** issues become more serious in the larger area solar modules due to the additional interfaces and more defects within the *** perovskite film composed of a thin low dimensional perovskite layer and a three-dimensional perovskite layer shows great potential in fabricating solar cells with high efficiency and stability *** this review,recent advancements,including composition design and processing methods for constructing bilayer perovskite films are *** then analyze the challenges and resolutions in deposition bilayer perovskite films with scalable *** summarizing the beneficial effect of the bilayer structure,we propose our thinking of feasible strategies to fabricate high efficiency perovskite solar modules with a long ***,we outline the directions for future work that will push the perovskite PV technology toward commercialization.

关键词： perovskite solar cell perovskite solar module bilayer stability scalable technique

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