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Atomic Modulation of 3D Conductive Frameworks Boost Performance of MnO2 for Coaxial Fiber‑Shaped Supercapacitors

nano-Micro Letters 2021年第1期13卷 44-55页

作者： Xiaona Wang Zhenyu Zhou Zhijian Sun Jinho Hah Yagang Yao Kyoung‑Sik Moon Jiangtao Di Qingwen Li Ching‑ping Wong Division of Advanced Nanomaterials Key Laboratory of Nanodevices and ApplicationsJoint Key Laboratory of Functional Nanomaterials and DevicesCAS Center for Excellence in NanoscienceSuzhou Institute of Nano‑Tech and Nano‑BionicsChinese Academy of SciencesSuzhou 215123People’s Republic of China School of Materials Science and Engineering Georgia Institute of TechnologyAtlantaGA 30332USA

Coaxial fiber-shaped supercapacitors are a promising class of energy storage devices requiring high performance for flexible and miniature electronic ***,they are still struggling from inferior energy density,which comes from the limited choices in materials and structure ***,Zn-doped CuO nanowires were designed as 3D framework for aligned distributing high mass loading of MnO2 *** could be introduced into the CuO crystal lattice to tune the covalency character and thus improve charge *** Zn–CuO@MnO2 as positive electrode obtained superior performance without sacrificing its areal and gravimetric capacitances with the increasing of mass loading of MnO2 due to 3D Zn–CuO framework enabling efficient electron transport.A novel category of free-standing asymmetric coaxial fiber-shaped supercapacitor based on Zn0.11CuO@MnO2 core electrode possesses superior specific capacitance and enhanced cell potential *** asymmetric coaxial structure provides superior performance including higher capacity and better stability under deformation because of sufficient contact between the electrodes and *** on these advantages,the as-prepared asymmetric coaxial fiber-shaped supercapacitor exhibits a high specific capacitance of 296.6 mF cm^−2 and energy density of 133.47μWh cm^−*** addition,its capacitance retention reaches 76.57%after bending 10,000 times,which demonstrates as-prepared device’s excellent flexibility and long-term cycling stability.

关键词： Coaxial fiber-shaped supercapacitors 3D framework Zn-CuO nanowires Zn-CuO@MnO2 core-shell structure

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ITO/Cu multilayer electrodes for high-brightness electrochromic displays

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eScience 2022年第6期2卷 632-638页

作者： Xueqing Tang Zishou Hu Zhen Wang Jian Chen Xinyang Mu Ge Song Peiyan Sun Zhengji Wen Jiaming Hao Shan Cong Zhigang Zhao School of Nano-Tech and Nano-Bionics University of Science and Technology of Chin1Hefei 230000China Key Laboratory of Multifunctional Nanomaterials and Smart Systems Chinese Academy of Sciences(CAS)Suzhou 215123China Key Lab of Nanodevices and Applications Suzhou Institute of Nano-Tech and Nano-BionicsChinese Academy of SciencesSuzhou 215123China Division of Nanomaterials Suzhou Institute of Nano-Tech and Nano-BionicsChinese Academy of SciencesNanchang 330200China State Key Laboratory of Infrared Physics Shanghai Institute of Technical PhysicsChinese Academy of SciencesShanghai 200083China

Fabry-Perot(F-P)nanocavity-type electrochromic devices with multicolor tunability have attracted significant interest in the past two years for their potential uses in a wide variety of applications,such as electronic display,military camouflage,and dynamic ***,challenges such as insufficient brightness,lengthy switching times,and poor cycling stability have yet to be ***,we demonstrate electrochromic electrodes based on ITO/Cu as both the current collector and the reflective layer,with WO_(3 )as the electrochromic material,forming a unique three-layered *** constituted WO_(3 )/ITO/Cu films present a high brightness value of about 84%before coloration,and a decent brightness value of 48%after coloration at−0.8***,a fast switching time between different coloration states(tc=2.2s;tb=1s)is recorded,attributed to the extremely low sheet resistivity of the ITO/Cu current *** films also reveal excellent electrochemical cycling stability across 2000 cycles.

关键词： Electrochromic High brightness Tungsten trioxide Copper

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High-voltage Linear LED for Three-phase AC Power applications

High-voltage Linear LED for Three-phase AC Power Application...

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China International Forum o Solid State Lighting: International Forum on Wide Bandgap Semiconductors China (SSLChina: IFWS)

作者： Xiu Zhang Baoxing Wang Shuqi Li Haojie Guo Rui Yue Yong Cai School of Nano-Tech and Nano-Bionics University of Science and Technology of China Hefei Key Laboratory of Nanodevices and Applications Suzhou Institute of Nano-Tech and Nano-Bionics CAS Suzhou Ningbo SkyTorch Optoelectronics Technology Co. Ltd. Ningbo

This paper investigates high-voltage light emitting diodes (LEDs) driven linearly by three-phase AC power, which features high reliability, cost effectiveness, all-solid-state components, and a minimum number of driving elements. To verify the optical and electrical properties of high-voltage LED, a high-voltage LED lighting system driven linearly by three-phase AC power was built as a prototype in this paper. At the rated voltage of 380V, the LED lighting system has input power of 145W, total luminance flux of 18500lm, luminous efficacy of 127lm/W, correlated color temperature (CCT) of 5617K, and color rendering index (Ra) of 70.6, power factor (PF) of 0.95. Further, the experimental results show that stable output luminance, high luminous efficacy, high PF, and flicker-free are achieved within 380V±10% voltage fluctuation.

关键词： Wiring Reactive power Voltage fluctuations Fluctuations Costs Stimulated emission Lighting

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Recent progress on surface chemistryⅡ:Property and characterization

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Chinese Chemical Letters 2025年第1期36卷 8-57页

作者： Xin Li Zhen Xu Donglei Bu Jinming Cai Huamei Chen Qi Chen Ting Chen Fang Cheng Lifeng Chi Wenjie Dong Zhenchao Dong Shixuan Du Qitang Fan Xing Fan Qiang Fu Song Gao Jing Guo Weijun Guo Yang He Shimin Hou Ying Jiang Huihui Kong Baojun Li Dengyuan Li Jie Li Qing Li Ruoning Li Shuying Li Yuxuan Lin Mengxi Liu Peinian Liu Yanyan Liu Jingtao Lü Chuanxu Ma Haoyang Pan JinLiang Pan Minghu Pan Xiaohui Qiu Ziyong Shen Qiang Sun Shijing Tan Bing Wang Dong Wang Li Wang Lili Wang Tao Wang Xiang Wang Xingyue Wang Xueyan Wang Yansong Wang Yu Wang Kai Wu Wei Xu Na Xue Linghao Yan Fan Yang Zhiyong Yang Chi Zhang Xue Zhang Yang Zhang Yao Zhang Xiong Zhou Junfa Zhu Yajie Zhang Feixue Gao Yongfeng Wang Center for Carbon-based Electronics and Key Laboratory for the Physics and Chemistry of Nanodevices School of ElectronicsPeking UniversityBeijing 100871China Spin-X Institute School of MicroelectronicsSouth China University of TechnologyGuangzhou 511442China School of Materials and Energy Guangzhou Key Laboratory of Low-Dimensional Materials and Energy Storage DevicesGuangdong University of TechnologyGuangzhou 510006China Faculty of Materials Science and Engineering Kunming University of Science and TechnologyKunming 650093China i-Lab CAS Key Laboratory of Nanophotonic Materials and DevicesSuzhou Institute of Nano-Tech and Nano-BionicsChinese Academy of SciencesSuzhou 215123China CAS Key Laboratory of Molecular Nanostructure and Nanotechnology CAS Research/Education Center for Excellence in Molecular SciencesBeijing National Laboratory for Molecular Sciences(BNLMS)Institute of ChemistryChinese Academy of SciencesBeijing 100190China State Key Laboratory for Organic Electronics and Information Displays&Jiangsu Key Laboratory for Biosensors Institute of Advanced MaterialsJiangsu National Synergetic Innovation Center for Advanced MaterialsNanjing University of Posts and TelecommunicationsNanjing 210023China Institute of Functional Nano and Soft Materials(FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials and DevicesSoochow UniversitySuzhou 215123China Hefei National Research Center for Physical Sciences at the Microscale and Synergetic Innovation Center of Quantum Information and Quantum Physics University of Science and Technology of ChinaHefei 230026China Institute of Physics&University of Chinese Academy of Sciences Beijing 100190China State Key Laboratory of Catalysis Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023China College of Chemistry Beijing Normal UniversityBeijing 100875China Beijing National Laboratory for Molecular Sciences(BNLMS) College of Chemistry and Molecular EngineeringPeking UniversityBeijing 100871China School

Surface with well-defined components and structures possesses unique electronic,magnetic,optical and chemical *** a result,surface chemistry research plays a crucial role in various fields such as catalysis,energy,materials,quantum,and *** science mainly investigates the correspondence between surface property and *** probe microscopy(SPM)techniques are important tools to characterize surface properties because of the capability of atomic-scale imaging,spectroscopy and manipulation at the single-atom *** this review,we summarize recent advances in surface electronic,magnetic and optical properties characterized mainly by SPM-based *** focus on elucidating theπ-magnetism in graphene-based nanostructures,construction of spin qubits on surfaces,topology properties of surface organic structures,STM-based light emission,tip-enhanced Raman spectroscopy and integration of machine learning in SPM studies.

关键词： Surface chemistry Scanning probe microscopy π-Magnetism Spin qubits Tip-enhanced Raman spectroscopy

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Recent progress on surface chemistryⅠ:Assembly and reaction

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Chinese Chemical Letters 2024年第12期35卷 43-94页

作者： Xin Li Zhen Xu Donglei Bu Jinming Cai Huamei Chen Qi Chen Ting Chen Fang Cheng Lifeng Chi Wenjie Dong Zhenchao Dong Shixuan Du Qitang Fan Xing Fan Qiang Fu Song Gao Jing Guo Weijun Guo Yang He Shimin Hou Ying Jiang Huihui Kong Baojun Li Dengyuan Li Jie Li Qing Li Ruoning Li Shuying Li Yuxuan Lin Mengxi Liu Peinian Liu Yanyan Liu Jingtao Lü Chuanxu Ma Haoyang Pan JinLiang Pan Minghu Pan Xiaohui Qiu Ziyong Shen Shijing Tan Bing Wang Dong Wang Li Wang Lili Wang Tao Wang Xiang Wang Xingyue Wang Xueyan Wang Yansong Wang Yu Wang Kai Wu Wei Xu Na Xue Linghao Yan Fan Yang Zhiyong Yang Chi Zhang Xue Zhang Yang Zhang Yao Zhang Xiong Zhou Junfa Zhu Yajie Zhang Feixue Gao Yongfeng Wang Center for Carbon-based Electronics and Key Laboratory for the Physics and Chemistry of Nanodevices School of ElectronicsPeking UniversityBeijing 100871China Spin-X Institute School of MicroelectronicsSouth China University of TechnologyGuangzhou 511442China School of Materials and Energy Guangzhou Key Laboratory of Low-Dimensional Materials and Energy Storage DevicesGuangdong University of TechnologyGuangzhou 510006China Faculty of Materials Science and Engineering Kunming University of Science and TechnologyKunming 650093 China i-Lab CAS Key Laboratory of Nanophotonic Materials and DevicesSuzhou Institute of Nano-Tech and Nano-BionicsChinese Academy of SciencesSuzhou 215123China CAS Key Laboratory of Molecular Nanostructure and Nanotechnology CAS Research/Education Center for Excellence in Molecular SciencesBeijing National Laboratory for Molecular Sciences(BNLMS)Institute of ChemistryChinese Academy of SciencesBeijing 100190China State Key Laboratory for Organic Electronics and Information Displays&Jiangsu Key Laboratory for Biosensors Institute of Advanced MaterialsJiangsu National Synergetic Innovation Center for Advanced MaterialsNanjing University of Posts and TelecommunicationsNanjing 210023China Institute of Functional Nano and Soft Materials(FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials and DevicesSoochow UniversitySuzhou 215123China Hefei National Research Center for Physical Sciences at the Microscale and Synergetic Innovation Center of Quantum Information and Quantum Physics University of Science and Technology of ChinaHefei 230026China Institute of Physics&University of Chinese Academy of Sciences Beijing 100190China State Key Laboratory of Catalysis Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023China College of Chemistry Beijing Normal UniversityBeijing 100875China Beijing National Laboratory for Molecular Sciences(BNLMS) College of Chemistry and Molecular EngineeringPeking UniversityBeijing 100871China School

Surface chemistry focuses on the investigation of the adsorption,migration,assembly,activation,reaction,and desorption of atoms and molecules at *** chemistry plays the pivotal roles in both fundamental science and applied *** review will summarize the recent progresses on surface assembly,synthesis and catalysis investigated mainly by scanning tunneling microscopy and atomic force *** assemblies of water and small biomolecules,construction of Sierpin′ski triangles and surface chirality are ***-surface synthesis of conjugated carbo-and heterocycles and other kinds of carbon nanostructures are *** model catalysis,including single-atom catalysis and electrochemical catalysis,are discussed at the single-atom level.

关键词： Surface chemistry Assembly Surface synthesis Catalysis on surface Surface electrochemical processes

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Two-dimensional materials for future information technology: status and prospects

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Science China(Information Sciences) 2024年第6期67卷 1-147页

作者： Hao QIU Zhihao YU Tiange ZHAO Qi ZHANG Mingsheng XU Peifeng LI Taotao LI Wenzhong BAO Yang CHAI Shula CHEN Yiqi CHEN Hui-Ming CHENG Daoxin DAI Zengfeng DI Zhuo DONG Xidong DUAN Yuhan FENG Yu FU Jingshu GUO Pengwen GUO Yue HAO Jun HE Xiao HE Jingyi HU Weida HU Zehua HU Xinyue HUANG Ziyang HUANG Ali IMRAN Ziqiang KONG Jia LI Qian LI Weisheng LI Lei LIAO Bilu LIU Can LIU Chunsen LIU Guanyu LIU Kaihui LIU Liwei LIU Sheng LIU Yuan LIU Donglin LU Likuan MA Feng MIAO Zhenhua NI Jing NING Anlian PAN Tian-Ling REN Haowen SHU Litao SUN Yue SUN Quanyang TAO Zi-Ao TIAN Dong WANG Hao WANG Haomin WANG Jialong WANG Junyong WANG Wenhui WANG Xingjun WANG Yeliang WANG Yuwei WANG Zhenyu WANG Yao WE... Department of Applied Physics The Hong Kong Polytechnic University Key Laboratory for Micro-Nano Physics and Technology of Hunan Province College of Materials Science and EngineeringHunan University College of Integrated Circuits Zhejiang University Shenzhen Geim Graphene Center Shenzhen Key Laboratory of Layered Materials for Value-Added ApplicationsTsinghua-Berkeley Shenzhen Institute & Institute of Materials ResearchTsinghua Shenzhen International Graduate SchoolTsinghua University State Key Laboratory of Extreme Photonics and Instrumentation College of Optical Science and EngineeringInternational Research Center for Advanced PhotonicsZijingang CampusZhejiang University National Key Laboratory of Materials for Integrated Circuits Shanghai Institute of Microsystem and Information TechnologyChinese Academy of Sciences CAS Key Laboratory of Nanophotonic Materials and Devices & Key Laboratory of Nanodevices and Applications i-LabSuzhou Institute of Nano-Tech and Nano-Bionics (SINANO)Chinese Academy of Sciences College of Chemistry and Chemical Engineering Hunan University Key Laboratory of Quantum State Construction and Manipulation (Ministry of Education) Department of PhysicsRenmin University of China School of Integrated Circuits Beijing National Research Center for Information Science and Technology (BNRist)Tsinghua University School of Electronic Science and Engineering Nanjing University The State Key Discipline Laboratory of Wide Band Gap Semiconductor Technology Shaanxi Joint Key Laboratory of GrapheneSchool of MicroelectronicsXidian University Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education School of Physics and TechnologyWuhan University School of Integrated Circuits Huazhong University of Science and Technology Center for Nanochemistry (CNC) Beijing Science and Engineering Center for NanocarbonsBeijing National Laboratory for Molecular SciencesCollege of Chemistry and Molecular EngineeringPeking University State Key Laboratory for Artificial Microstruct

Over the past 70 years, the semiconductor industry has undergone transformative changes,largely driven by the miniaturization of devices and the integration of innovative structures and materials. Two-dimensional(2D) materials like transition metal dichalcogenides(TMDs) and graphene are pivotal in overcoming the limitations of silicon-based technologies, offering innovative approaches in transistor design and functionality, enabling atomic-thin channel transistors and monolithic 3D integration. We review the important progress in the application of 2D materials in future information technology, focusing in particular on microelectronics and optoelectronics. We comprehensively summarize the key advancements across material production, characterization metrology, electronic devices, optoelectronic devices, and heterogeneous integration on silicon. A strategic roadmap and key challenges for the transition of 2D materials from basic research to industrial development are outlined. To facilitate such a transition, key technologies and tools dedicated to 2D materials must be developed to meet industrial standards, and the employment of AI in material growth, characterizations, and circuit design will be essential. It is time for academia to actively engage with industry to drive the next 10 years of 2D material research.

关键词： two-dimensional (2D) materials information technology production technology standardization of characterization microelectronic devices optoelectronic devices multi-functional integration

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A cascade Targeted and Activatable NIR-Ⅱnanoprobe for Highly Sensitive Detection of Acute Myeloid Leukemia in an Orthotopic Model

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CCS Chemistry 2021年第3期3卷 895-903页

作者： Xiaohu Yang Xinyi An Sisi Ling Haoying Huang Yejun Zhang Guangcun Chen Chunyan Li &Qiangbin Wang CAS Key Laboratory of Nano-Bio Interface Suzhou Key Laboratory of Functional Molecular Imaging TechnologyDivision of Nanobiomedicine and i-LabSuzhou Institute of Nano-Tech and Nano-BionicsChinese Academy of SciencesSuzhou 215123 University of Science and Technology of China Hefei 230036 College of Materials Sciences and Opto-Electronic Technology University of Chinese Academy of SciencesBeijing 100049

Acute myeloid leukemia(AML)remains a significant concern in modern *** diagnosis is the key to improving the therapeutic effects of *** the present work,a cascade-targeted and activatable NIR-Ⅱ nanoprobe(Ald&A1094@Ag_(2)S)was developed for early detection of AML in an orthotopic *** intravenous injection,Ald&A1094@Ag_(2)S effectively accumulated in bone tissue due to its high affinity for alendronate(Ald)to the ***,the AML microenvironment allowed for the membrane-penetrating peptide TAT(cell‐penetrating peptide(CGRRRQRRKKRG))to be exposed via pH-sensitive hydrazone bond-mediated detaching of bone-targeted ligands,resulting in efficient internalization of nanoprobes in HL60 *** peroxynitrite(ONOO–)in HL60 cells further activated NIR-Ⅱ fluorescence of Ag_(2)S QDs via A1094 oxidation,thereby inhibiting fluorescence resonance energy transfer(FRET).Such a unique cascade-targeted and activatable strategy enables the nanoprobes to only light up the AML lesion region in the bone marrow with negligible background effects,which holds great potential for clinical applications in the future.

关键词： acute myeloid leukemia peroxynitrite second near-infrared window in vivo fluorescence imaging

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Structure and luminescence of α-plane GaN on γ-plane sapphire substrate modified by Si implantation

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Chinese Physics B 2021年第5期30卷 63-68页

作者： Lijie Huang Lin Li Zhen Shang Mao Wang Junjie Kang Wei Luo Zhiwen Liang Slawomir Prucnal Ulrich Kentsch Yanda Ji Fabi Zhang Qi Wang Ye Yuan Qian Sun Shengqiang Zhou Xinqiang Wang Songshan Lake Materials Laboratory Dongguan 523808China Helmholtz-Zentrum Dresden-Rossendorf Institute of Ion Beam Physics and Materials Research01314DresdenGermany College of Mathematics and Physics Beijing University of Chemical TechnologyBeijing 100029China Department of Applied Physics College of ScienceNanjing University of Aeronautics and AstronauticsNanjing 211106China Dongguan Institute of Optoelectronics Peking UniversityDongguan 523808China Key Laboratory of Nanodevices and Applications Suzhou Institute of Nano-Tech and Nano-Bionics(SINANO)Chinese Academy of Sciences(CAS)Suzhou 215123China Guangxi Key Laboratory of Precision Navigation Technology and Application Guilin University of Electronic TechnologyGuilin 541004China

We show the structural and optical properties of non-polar a-plane GaN epitaxial films modified by Si ion *** gradually raising Si fluences from 5×10^(13)cm^(-2)to 5×10^(15)cm^(-2),the n-type dopant concentration gradually increases from 4.6×10^(18)cm^(-2)to 4.5×10^(20)cm^(-2),while the generated vacancy density accordingly raises from 3.7×10^(13)cm^(-2)to 3.8×10^(15)cm^(-2).Moreover,despite that the implantation enhances structural disorder,the epitaxial structure of the implanted region is still well preserved which is confirmed by Rutherford backscattering channeling spectrometry *** monotonical uniaxial lattice expansion along the a direction(out-of-plane direction)is observed as a function of fluences till 1×10^(15)cm^(-2),which ceases at the overdose of 5×10^(15)cm^(-2)due to the partial amorphization in the surface *** raising irradiation dose,a yellow emission in the as-grown sample is gradually quenched,probably due to the irradiation-induced generation of non-radiative recombination centers.

关键词： ion implantation GaN defects

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Selection of DNA Aptamer Recognizing CD44 for High-Efficiency Capture of Circulating Tumor Cells

SSRN

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SSRN 2023年

作者： Gao, Tian Li, Wenjing Ma, Jialing Chen, Ying Wang, Zhili Sun, Na Pei, Renjun CAS Key Laboratory of Nano-Bio Interface Suzhou Institute of Nano-Tech and Nano-Bionics Chinese Academy of Sciences Suzhou215123 China School of Nano-Tech and Nano-Bionics University of Science and Technology of China Hefei230026 China Department of Gynecology and Obstetrics The Second Affiliated Hospital of Soochow University Suzhou215004 China

Cancer stem cells play critical roles in cancer progression, cancer invasion and metastasis, and cancer recurrence. CD44 is known as a specific surface marker of cancer stem cells, which has been well-studied in cancer invasion and metastasis. Herein, we successfully selected the DNA aptamer for recognizing CD44+ cells using Cell-SELEX strategy, in which the engineered CD44 overexpression cells were used as target cells for selection. The optimized aptamer candidate C24S showed high binding affinity with the Kd value of 14.54 nM and good specificity. Then, the aptamer C24S was employed to fabricate the functional aptamer-magnetic nanoparticles (C24S-MNPs) for CD44+ CTC capture. To investigate the capture efficiency and sensitivity of C24S-MNPs, series of artificial cell capture tests were performed. When 10~200 of HeLa cells were spiked into 1 mL PBS and PBMCs isolated from 1 mL peripheral blood, above 95% and 90% of HeLa cells were successfully captured, respectively. More importantly, we finally explored the facility of C24S-MNPs for CTC detection in clinical cancer patient blood samples, indicating a potential and feasible strategy for cancer diagnostic technology in clinical applications. © 2023, The Authors. All rights reserved.

关键词： Diseases

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Boosting Zn-ion storage capability of self-standing Zn-doped Co_(3)O_(4)nanowire array as advanced cathodes for high-performance wearable aqueous rechargeable Co//Zn batteries

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nano Research 2021年第1期14卷 91-99页

作者： Qiulong Li Qichong Zhang Zhengyu Zhou Wenbin Gong Chenglong Liu Yongbao Feng Guo Hong Yagang Yao College of Materials Science and Engineering Nanjing Tech University30 Puzhu RoadNanjing 211816China National Laboratory of Solid State Microstructuresy College of Engineering and Applied Sciences Jiangsu Key Laboratory of Artificial Functional Materialsand Collaborative Innovation Center of Advanced MicrostructuresNanjing UniversityNanjing 210093China Division of Advanced Nanomaterials Key Laboratory of Nanodevices and ApplicationsJoint Key Laboratory of Functional Nanomaterials and DevicesCAS Center for Excellence in NanoscienceSuzhou Institute of Nanotech and NanobionicsChinese Academy of Sciencesy Suzhou 215123China Division of Nanomaterials and Jiangxi Key Lab of Carbonene Materials Suzhou Institute of Nano-Tech and Nano-BionicsNanchangChinese Academy of SciencesNanchang 330200China Department of Chemical and Biomolecular Engineering National University of Singapore4 Engineering Drive 4Singapore 117585Singapore Institute of Applied Physics and Materials Engineering University of Macao.Avenida da UniversidadeTaipaMacao SAR 999078China Department of Physics and Chemistry Faculty of Science and TechnologyUniversity of MacaoAvenida da UniversidadeTaipaMacao SAR 999078China

Neutral aqueous rechargeable Co_(3)O_(4)//Zn batteries with high-output voltage and outstanding cycling stability have yielded new insights into wearable energy-storage *** meet the increasing demand for a means of powering wearable and portable devices,the development of a high-performance fiber-shaped Co//Zn battery would be highly ***,the intrinsically poor conductivity of C 03O4 significantly restricts the application of these high-capacity and high-rate aqueous rechargeable ***,density functional theory(DFT)calculations demonstrate that the substitution of Zn for Co^(3+)leads to an insulatormetal transition in the Zn-doped Co_(3)O_(4)(Zn-Co_(3)O_(4)).In this study,we used metallic Zn-Co_(3)O_(4)nanowire arrays(NWAs)as a novel binder-free cathode to successfully fabricate an all-solid-state fiber-shaped aqueous rechargeable(AFAR)Co//Zn *** resulting fiber-shaped Co//Zn battery takes advantage of the enhanced conductivity,increased capacity,and improved rate capability of Zn-Co_(3)O_(4)NWAs to yield a remarkable capacity of 1.25 mAh·cm^(-2)at a current density of 0.5 mA·cm^(-2),extraordinary rate capability(60.8%capacity retention at a high current density of 20 mA·cm^(-2))and an admirable energy density of 772.6 mWh·cm^(-3).Thus,the successful construction of Zn-Co_(3)O_(4)NWAs provides valuable insights into the design of high-capacity and high-rate cathode materials for aqueous rechargeable high-voltage batteries.

关键词： Zn-doped Co_(3)O_(4) aqueous rechargeable Co//Zn battery fiber-shaped high-capacity high-rate

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