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In-situ physical/chemical cross-linked hydrogel electrolyte achieving ultra-stable zinc anode-electrolyte interface towards dendrite-free zinc ion battery

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Journal of Energy Chemistry 2024年第10期97卷 342-351,I0007页

作者： Chen-Yang Li Jiang-Lin Wang Dong-Ting Zhang Min-Peng Li Hao Chen Wei-Hai Yi Xin-Ying Ren Bao Liu Xue-Feng Lu Mao-Cheng Liu State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals Lanzhou University of TechnologyLanzhou 730050GansuChina School of Materials Science and Engineering Lanzhou University of TechnologyLanzhou 730050GansuChina Chaowei Power Group Co. LTDChangxing 313100ZhejiangChina School of Vehicle Engineering Jiangsu UniversityNanjing 210031jiangsuChina

Hydrogen evolution reaction(HER),zinc corrosion,and dendrites growth on zinc metal anode are the major issues limiting the practical applications of zinc-ion ***,an in-situ physical/chemical cross-linked hydrogel electrolyte(carrageenan/polyacrylamide/ZnSO_(4),denoted as CPZ)has been developed to stabilize the zinc anode-electrolyte interface,which can eliminate side reactions and prevent dendrites *** in-situ CPZ hydrogel electrolyte improves the reversibility of zinc anode due to eliminating side reactions caused by active water ***,the electrostatic interaction between the SO_(4)^(-)groups in CPZ and Zn^(2+)can encourage the preferential deposition of zinc atoms on(002)crystal plane,which achieve dendrite-free and homogeneous zinc *** in-situ hydrogel electrolyte offers a streamlined approach to battery manufacturing by allowing for direct integration into the ***,the Zn//Zn half battery with CPZ hydrogel electrolyte can enable an ultra-long cycle over 5500 h at a current density of 0.5 mA cm^(-2),and the Zn//Cu half battery reach an average coulombic efficiency of 99.37%.The Zn//V_(2)O_5-GO full battery with CPZ hydrogel electrolyte demonstrates94.5%of capacity retention after 2100 *** study is expected to open new thought for the development of commercial hydrogel electrolytes for low-cost and long-life zinc-ion batteries.

关键词： In-suit CPZ hydrogel electrolyte Hydrogen evolution reaction and zinc corrosion Dendrites growth Zinc anode-electrolyte interface Zn ion batteries

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High‑permittivity ceramics enabled highly homogeneous zero‑index metamaterials for high‑directivity antennas and beyond

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eLight 2024年第1期4卷 262-271页

作者： Yueyang Liu Tian Dong Xu Qin Weijia Luo Ning Leng Yujing He Yong Yuan Ming Bai Jingbo Sun Ji Zhou Yue Li Yang Li State Key Laboratory of Precision Measurement Technology and Instruments Department of Precision InstrumentTsinghua UniversityBeijing 100084China Department of Electronic Engineering Tsinghua UniversityBeijing 100084China State Key Laboratory of New Ceramics and Fine Processing School of Materials Science and EngineeringTsinghua UniversityBeijing 100084China The School of Electronic and Information Engineering Beihang UniversityBeijing 100191China

Zero-index metamaterials(ZIMs)can support uniform electromagnetic field distributions at any frequency,but their applications are hampered by the ZIM’s homogenization level—only 3 unit cells per free-space wavelength,which is fundamentally limited by the low-permittivity inclusions(εr≈12)and background matrix(εr≈1).Here,by filling high-permittivity SrTiO3 ceramic(εr≈294)pillars in BaTiO3(εr≈25)background matrix,we demonstrate a highly homogeneous microwave ZIM with an over threefold increase in the homogenization *** such a ZIM,we achieve not only an antenna,approaching the fundamental limit in the directivity with outstanding scalability,but also a concave lens with a focal length of as short as 1λ*** highly homogeneous ZIM has profound implications in ceramics,ZIM-based waveguides and cavities,free-space wavefront manipulation,and microwave quantum optics,and opens up enormous possibilities in wireless communications,remote sensing,global positioning satellites,etc.

关键词： Zero-refractive index Metamaterials Antenna

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Scalable and Fast Electrophoresis-Accelerated Assembly of Chiroptical Carbon Fibers With Multi Functions

SSRN

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SSRN 2025年

作者： Jiao, Haixing Song, Baiqi Li, Fa Tang, Yuanhan Zhang, Na Zhang, Xiaofang Xu, Weilin State Key Laboratory of New Textile Materials and Advanced Processing Wuhan Textile University Wuhan430200 China School of Transportation Science and Engineering Harbin Institute of Technology Harbin150090 China

Colorful carbon fibers (CFs) with combinations of structural robustness, environmental stability, and advanced functions are very promising in the cutting-edge fields. However, the efficient coloration simultaneously with the functionalization for CFs in a fast, scalable, and sustainable manner remains a grand challenge. In this work, we develop large-area chiroptical CFs with long-ranged chirality decoration via the electrophoresis-accelerated self-assembly of renewable cellulose nanocrystals (CNCs).That leads a cholesteric photonic "cast" conformally and tightly coated on CFs surface in a seamlessly tessellated way to bring chiroptical functionalities and mechanical adaption. The resulting chiroptical CFs not only comprise strong optical properties with controllable and brilliant colors, but also demonstrate impressive opt-mechanical combination against external mechanical forces, hydration effect, and extreme environments. More importantly, chiroptical CFs with customized patterns on the surface can be used as programmable infrared display for encryption and anti-counterfeiting. Those exciting findings extend the potentials of CF materials towards optical encryption, wearable device display, defense, and aerospace special applications. © 2025, The Authors. All rights reserved.

关键词： Cellulose nanocrystals

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A model cathode for mechanistic study of organosulfide electrochemistry in Li-organosulfide batteries

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Journal of Energy Chemistry 2022年第3期31卷 440-447,I0012页

作者： Wei Zhang Fenfen Ma Sibei Guo Xin Chen Ziqi Zeng Qiang Wu Shuping Li Shijie Cheng Jia Xie State Key Laboratory of Advanced Electromagnetic Engineering and Technology School of Electrical and Electronic EngineeringHuazhong University of Science and TechnologyWuhan 430074HubeiChina GuSu Laboratory of Materials Suzhou 215123JiangsuChina Hefei National Laboratory for Physical Sciences at the Microscale School of Chemistry and Materials ScienceUniversity of Science and Technology of ChinaHefei 230026AnhuiChina State Key Laboratory of Materials Processing and Die&Mould Technology School of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhan 430074HubeiChina

Organosulfides offer new opportunities for high performance lithium-sulfur(Li-S)batteries because of materials abundance,versatile structures and unique ***,their redox kinetics as well as cycling performance need to be further *** redox mediators is a highly effective strategy to address above ***,the underlying mechanism in this chemistry is so far insufficiently ***,phenyl disulfide(Ph S–SPh)and phenyl diselenide(Ph Se–Se Ph)are used as a model system for mechanistic understanding of organosulfide electrochemistry,particularly the rate *** the reaction thermodynamics and charge-discharge process reveals redox of both S–S and C–S bonds,as well as that the coupling between radical exchange and electrochemical redox is the key to enhance the sulfur *** study not only establishes a basic understanding of orgaonsulfide electrochemistry in Li-S batteries,but also points out a general strategy for enhancing the kinetics of sulfur electrodes in electrochemical devices.

关键词： Organosulfide Radical exchange Reaction kinetics Rate acceleration

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Scalable and Fast Electrophoresis-Accelerated Assembly of Chiroptical Carbon Fibers With Multi Functions

SSRN

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SSRN 2025年

关键词： Cellulose nanocrystals

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Synthesis and application of single-atom catalysts in sulfur cathode for high-performance lithium–sulfur batteries

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Chinese Chemical Letters 2023年第1期34卷 73-83页

作者： Yingjie Miao Yufan Zheng Feng Tao Zhijun Chen Yi Xiong Fengzhang Ren Yong Liu Provincial and Ministerial Co-Construction of Collaborative Innovation Center for Non-Ferrous Metal New Materials and Advanced Processing Technology Henan Key Laboratory of Non-Ferrous Materials Science and Processing TechnologySchool of Materials Science and EngineeringHenan University of Science and TechnologyLuoyang 471023China School of Intelligent Manufacturing Ecosystem Xi’an Jiaotong–Liverpool UniversitySuzhou 215123China Luoyang Bearing Research Institute Co. Ltd.Luoyang 471039China

Lithium–sulfur(Li-S)batteries are regarded as one of the most promising energy storage devices because of their low cost,high energy density,and environmental ***,Li-S batteries suffer from sluggish reaction kinetics and serious“shuttle effect”of lithium polysulfides(LiPSs),which causes rapid decay of battery capacity and prevent their practical *** address these problems,introducing single-atom catalysts(SACs)is an effective method to improve the electrochemical performance of Li-S batteries,due to their high catalytic efficiency and definite active sites for *** this paper,we summarized the latest developments in enhancing the electrochemical performance of cathode for Li-S batteries through introducing different ***,we briefly introduced the catalytic mechanism of SACs and discussed the strategies of synthesizing SACs,including the spatial confinement strategy and the coordination design ***,the challenges and prospects in this field are *** believe that this review would help to design and fabricate high-performance Li-S batteries via introducing SACs and boost their practical application.

关键词： Single-atom catalysts Lithium-sulfur batteries Sulfur cathode Synthesis and application Polysulfide conversion Shuttle effect

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Permeable carbon fiber based thermoelectric film with exceptional EMI shielding performance and sensor capabilities

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Journal of advanced Ceramics 2024年第8期13卷 1119-1131页

作者： Junjie Zhu Chuan Sun Wanlin Feng Mengran Chen Peng-An Zong Chunlei Wan College of Materials Science and Engineering Nanjing Tech UniversityNanjing 211800China Nationai Innovation Institute of Defense Technology Academy of Military Sciences of the People's Liberation Army of ChinaBeijing 100089China Institute of Nuclear Physics and Chemistry Innovation Research Team for Advanced CeramicsChina Academy of Engineering PhysicsMianyang 621900China State Key Laboratory of New Ceramics and Fine Processing School of Materials Science and EngineeringTsinghua UniversityBeijing 100084China

Thermoelectric(TE)technologies offer a promising approach for directly converting skin heat into electricity for wearable *** p-type Sb2Tes and n-type BizTes as top-performing materials at room temperature,their rigid inorganic structure,with ultralow moisture permeability,poses challenges in warm and humid conditions,fostering bacterial growth and potential skin *** address this issue,we developed a cross-linked core-shell structure by electrodepositing Sb_(2)Te_(3)(Bi_(2)Te_(3))onto carbon fiber(CF).This architecture significantly improved the electrical conductivity and the Seebeck coefficient,resulting in a remarkable 300-fold increase in the power factor compared to that of pure *** CF/Sb_(2)Te_(3) and CF/Bi2Te films demonstrated optimal power factors of 450 and 121μW·m^(-1)·K^(-2),***,the fabricated films exhibited outstanding moisture permeability,over 3000 g·m^(-2)·d^(-1),exceptional electromagnetic interference shielding efficiency approaching 93 dB,and versatility as sensors for language assistance and respiratory *** attributes underline their broad applicability,emphasizing their suitability for human health protection in diverse scenarios.

关键词： thermoelectric(TE) carbon fiber(CF) Bi_(2)Te_(3) electrodeposition moisture permeability electromagnetic interference shielding

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Wrinkling modes of graphene oxide assembled on curved surfaces

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Nano Research 2023年第2期16卷 1801-1809页

作者： Kaiwen Li Zhanpo Han Lidan Wang Jiaqing Wang Chuanwei Zhang Jiahao Lin Shiyu Luo Li Peng Wenzhang Fang Yingjun Liu Ziliang Wu Yeqiang Tan Chao Gao Zhen Xu MOE Key Laboratory of Macromolecular Synthesis and Functionalization Department of Polymer Science and EngineeringKey Laboratory of Adsorption and Separation Materials&Technologies of Zhejiang ProvinceZhejiang UniversityHangzhou 310027China State Key Laboratory of Bio-Fibers and Eco-Textiles Collaborative Innovation Center of Marine Biobased Fiber and Ecological Textile TechnologySchool of Materials Science and EngineeringQingdao UniversityQingdao 266071China MOE Key Laboratory of Macromolecular Synthesis and Functionalization Department of Polymer Science and EngineeringZhejiang UniversityHangzhou 310027China Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering Taiyuan 030000China

Assembling two-dimensional(2D)sheets into macroscopic three-dimensional(3D)forms has created a promising material family with rich *** wrinkles are intrinsic features of 2D sheets in their 3D ***,the precise wrinkling modulation optimizes the transition of outstanding properties of 2D sheets to expected performances of assembled materials and dominates their fabrication *** wrinkling evolution of 2D sheets assembling onto flat surfaces has been extensively understood,however,the wrinkling behaviors on the more generally curved surface still remain ***,we investigate the wrinkling behaviors of graphene oxide sheets assembled onto curved surfaces and reveal the selection rule of wrinkling modes that determined by the curvature mismatch between 2D sheets and target *** uncover that three wrinkling modes including isotropic cracked land,labyrinth,and anisotropic curtain phases,respectively emerge on flat,spherical,and cylindrical surfaces.A favorable description paradigm is offered to quantitatively measure the complex wrinkling patterns and assess the curvature mismatch constraint underlying the wrinkling mode *** research provides a general and quantitative description framework of wrinkling modulation of 2D materials such as high performance graphene fibers,and guides the precise fabrication of particles and functional coatings.

关键词： two-dimensional(2D)sheets three-dimensional(3D)assembles curved surfaces wrinkling modes selection curvature mismatch constraint wrinkling modulation

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Semitransparent organic photovoltaics enabled by transparent p-type inorganic semiconductor and near-infrared acceptor

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Journal of Energy Chemistry 2024年第9期96卷 351-358页

作者： Xue Yan Jiayu Wang Wei He Top Archie Dela Peña Can Zhu Hailin Yu Yingyue Hu Cenqi Yan Shengqiang Ren Xingyu Chen Zhe Wang Jiaying Wu Mingjie Li Jianlong Xia Lei Meng Shirong Lu Dewei Zhao Mikhail Artemyev Yongfang Li Pei Cheng College of Polymer Science and Engineering State Key Laboratory of Polymer Materials EngineeringSichuan UniversityChengdu 610065SichuanChina Department of Applied Physics The Hong Kong Polytechnic UniversityKowloonHong Kong 999077China Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Organic SolidsInstitute of ChemistryChinese Academy of SciencesBeijing 100190China College of Materials Science and Engineering&Engineering Research Center of Alternative Energy Materials&Devices Ministry of EducationSichuan UniversityChengdu 610065SichuanChina Department of Material Science and Technology Taizhou UniversityTaizhou 318000ZhejiangChina Advanced Materials Thrust Function HubThe Hong Kong University of Science and Technology(Guangzhou)Guangzhou 511400GuangdongChina State Key Laboratory of Advanced Technology for Materials Science and Processing Center of Smart Materials and DevicesWuhan University of TechnologyWuhan 430070HubeiChina Department of Civil1nd Environmental Engineering The Hong Kong University of Science and TechnologyHong Kong 999077China Research Institute for Physical Chemical Problems Belarusian State UniversityMinsk 220006Belarus

Semitransparent organic photovoltaics(STOPVs)have gained wide attention owing to their promising applications in building-integrated photovoltaics,agrivoltaics,and floating *** semiconductors with high charge carrier mobility usually have planar and conjugated structures,thereby showing strong absorption in visible *** this work,a new concept of incorporating transparent inorganic semiconductors is proposed for high-performance ***(I)thiocyanate(CuSCN)is a visible-transparent inorganic semiconductor with an ionization potential of 5.45 eV and high hole *** transparency of CuSCN benefits high average visible transmittance(AVT)of *** energy levels of CuSCN as donor match those of near-infrared small molecule acceptor BTP-eC9,and the formed heterojunction exhibits an ability of exciton *** mobility of CuSCN contributes to a more favorable charge transport channel and suppresses charge *** control STOPVs based on PM6/BTP-eC9 exhibit an AVT of 19.0%with a power conversion efficiency(PCE)of 12.7%.Partial replacement of PM6 with CuSCN leads to a 63%increase in transmittance,resulting in a higher AVT of 30.9%and a comparable PCE of 10.8%.

关键词： Copper(I)thiocyanate Inorganic semiconductor Semitransparent Organic photovoltaics Charge dissociation

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Delicate chemical structure regulation of nonfullerene acceptor for efficient and large thickness organic solar cells

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Science China Chemistry 2024年第5期67卷 1596-1604页

作者： Zhe Zhang Wanying Feng Yunxin Zhang Shaohui Yuan Yuyang Bai Peiran Wang Zhaoyang Yao Chenxi Li Tainan Duan Xiangjian Wan Bin Kan Yongsheng Chen State Key Laboratory and Institute of Elemento-Organic Chemistry Frontiers Science Center for New Organic MatterThe Centre of Nanoscale Science and Technology and Key Laboratory of Functional Polymer MaterialsRenewable Energy Conversion and Storage Center(RECAST)College of ChemistryNankai UniversityTianjin 300071China School of Materials Science and Engineering National Institute for Advanced MaterialsNankai UniversityTianjin 300350China Chongqing Institute of Green and Intelligent Technology Chongqing SchoolUniversity of Chinese Academy of Sciences(UCAS Chongqing)Chinese Academy of SciencesChongqing 400722China

Inspired by the success of CH-series acceptors, a small-molecular acceptor, CH-Tz was reported by adopting a new conjugationextended electron-deficient unit([1,2,5]thiadiazolo[3,4-b]pyrazine) on the central core. Owing to the enhanced inter-/intramolecular interactions, CH-Tz exhibited near-infrared absorption and an effective three-dimensional molecular packing network in its single crystal. When blended with polymer donor PM6, the binary device achieved a high power conversion efficiency(PCE) of 18.54%, with a notable short-circuit current density(J_(sc)) of 27.54 m A cm-2and an excellent fill factor(FF) over 80%,which can be partly ascribed to the balanced charge transport properties in the blend film. After employing D18-Cl as the third component, an enhanced PCE of 18.85% was achieved due to a more obvious fiber network. Impressively, the CH-Tz-based OSC devices show excellent thermal stability and thickness insensitivity. Record-breaking Jscof 28.92 m A cm-2was reached for PM6:D18-Cl:CH-Tz ternary device with a thickness of 560 nm. Besides, CH-Tz shows potential in fabricating multicomponent high-performance organic solar cells, where over 19% efficiency could be realized in the quaternary device. Our work advances the strong influence of electron-deficient central units on molecular photovoltaic properties and guides the design of acceptors for stable and large-thickness organic solar cells.

关键词： organic solar cells non-fullerene acceptor central unit large thickness molecular packing

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