作者机构：
[Qiu, Dan; Huang, Xintang; Li, Xiaohui; Qiu, Huajun; Yang, Ze; Yu, Ying; Zhou, Qiancheng] Cent China Normal Univ, Coll Phys Sci & Technol, Inst Nanosci & Technol, Wuhan 430079, Peoples R China.;[Huang, Xintang; Yu, Ying; Zhou, Xing] Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China.
通讯机构：
[Ze Yang; Xintang Huang; Ying Yu; Ze Yang Ze Yang Ze Yang; Xintang Huang Xintang Huang Xintang Huang; Ying Yu Ying Yu Ying Yu] I;Institute of Nanoscience and Technology, College of Physical Science and Technology, Central China Normal University, Wuhan, 430079 China
关键词：
core-shell nanostructure;MnO2 nanosheets;N-doped carbon;Zn ion batteries
作者机构：
[Zhu, Qiancheng; Zhang, Wenming; Wang, Xiaoying; Zhang, Yijing; Zhao, Danyang; Lei, Yu] Hebei Univ, Coll Phys Sci & Technol, Natl & Local Joint Engn Lab New Energy Photoelect, Baoding 071002, Peoples R China.;[Huang, Xintang; Zhao, Danyang] Cent China Normal Univ, Inst Nanosci & Nanotechnol, Coll Phys Sci & Technol, Wuhan 430079, Peoples R China.;[Huang, Xintang] Wuchangshouyi Univ, Dept Basic Sci, Wuhan 430064, Peoples R China.;[Liu, Jinping] Wuhan Univ Technol, Sch Chem Chem Engn & Life Sci, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Hubei, Peoples R China.;[Liu, Jinping] Harbin Normal Univ, Sch Phys & Elect Engn, Key Lab Photon & Elect Bandgap Mat, Minist Educ, Harbi 150025, Peoples R China.
通讯机构：
[Wenming Zhang; Qiancheng Zhu; Wenming Zhang Wenming Zhang Wenming Zhang; Qiancheng Zhu Qiancheng Zhu Qiancheng Zhu] N;[Xintang Huang; Xintang Huang Xintang Huang Xintang Huang] I;[Jinping Liu; Jinping Liu Jinping Liu Jinping Liu] S;Institute of Nanoscience and Nanotechnology, College of Physical Science and Technology, Central China Normal University, Wuhan, 430079 P. R. China<&wdkj&>Department of Basic Sciences, Wuchangshouyi University, Wuhan, 430064 P. R. China<&wdkj&>National & Local Joint Engineering Laboratory of New Energy Photoelectric Devices, College of Physics Science and Technology, Hebei University, Baoding, 071002 P. R. China<&wdkj&>School of Chemistry, Chemical Engineering and Life Science, State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, Hubei, 430070 P. R. China<&wdkj&>Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education School of Physics and Electronic Engineering, Harbin Normal University, Harbi, 150025 P. R. China
摘要：
<jats:title>Abstract</jats:title><jats:p>Aqueous Zn‐ion batteries (AZIBs) are promising due to their high theoretical energy density and intrinsic safety, and the natural abundance of Zn. Since low voltage is an intrinsic shortage of AZIBs, achieving super‐high capacity of cathode materials is a vital way to realize high practical energy density, which however remains a huge challenge. Herein, the capacity increase of classical vanadium oxide cathode is predicted via designing atomic thickness of 2D structure to introduce abundant Zn<jats:sup>2+</jats:sup> storage sites based on density functional theory (DFT) calculation; then graphene‐analogous V<jats:sub>2</jats:sub>O<jats:sub>5</jats:sub>·nH<jats:sub>2</jats:sub>O (GAVOH) with only few atomic layers is fabricated, realizing a record capacity of 714mAhg<jats:sup>−1</jats:sup>. Pseudocapacitive effect is unveiled to mainly contribute to the super‐high capacity due to the highly exposed GAVOH external surface. In situ Raman and synchrotron X‐ray techniques unambiguously uncover the Zn<jats:sup>2+</jats:sup> storage mechanism. Carbon nanotubes (CNTs) are further introduced to design GAVOH‐CNTs gel ink for large‐scale cathode fabrication. The hybrid cathode demonstrates ultra‐stable cycling and excellent rate capability and delivers a high energy density of 476Whkg<jats:sup>−1</jats:sup> at 76Wkg<jats:sup>−1</jats:sup>; 228Whkg<jats:sup>−1</jats:sup> is still retained at high mass loading of 10.2mgcm<jats:sup>−2</jats:sup>. This work provides inspiration for breaking the capacity limit of cathode in AZIBs.</jats:p>
作者机构：
[Wang, Ling; Wang, Chaoyue; Li, Qin; Shi, Yun; Fang, Yuqiang; Huang, Fuqiang; Yu, Jianding] State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Science, Shanghai;200050, China;[Huang, Xintang] College of Physical Science and Technology, Central China Normal University, Wuhan;430079, China;[Katayama, Tsukasa] Research Institute for Electronic Science, Hokkaido University, N20W10, Kita, Sapporo
通讯机构：
[Tsukasa Katayama] R;[Fuqiang Huang; Jianding Yu] S;[Xintang Huang] C;College of Physical Science and Technology, Central China Normal University , Wuhan 430079, China<&wdkj&>State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Science , Shanghai 200050, China<&wdkj&>Research Institute for Electronic Science, Hokkaido University , N20W10, Kita, Sapporo 001-0020, Japan
期刊：
Sensors and Actuators B-Chemical,2022年358:131520 ISSN：0925-4005
通讯作者：
Xintang Huang
作者机构：
[Huang, Xintang; Li, Xiaohui; Dun, Menghan; Zhao, Danyang; Tang, Meihui] Cent China Normal Univ, Inst Nanosci & Nanotechnol, Dept Phys Sci & Technol, Wuhan 430079, Peoples R China.
通讯机构：
[Xintang Huang] I;Institute of Nanoscience and Nanotechnology, Department of Physical Science and Technology, Central China Normal University, 430079 Wuhan, PR China
关键词：
H2S gas sensor;Hierarchical CuO microspheres;PdO decorated;Room-temperature;Ultra-fast response/recovery
作者机构：
[Li, Xiu; Chen, Chen; Zhang, Faqiang; Yi, Zhiguo; Fang, Hanliang] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China.;[Li, Xiu; Huang, Xintang] Cent China Normal Univ, Coll Phys Sci & Technol, Inst Nanosci & Nanotechnol, Wuhan 430079, Peoples R China.;[Li, Xiu] Henan Univ Engn, Henan Key Lab Elect Ceram Mat & Applicat, Zhengzhou 451191, Peoples R China.
通讯机构：
[Xintang Huang] I;[Zhiguo Yi] S;State Key Lab of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China<&wdkj&>Institute of Nanoscience and Nanotechnology, College of Physical Science and Technology, Central China Normal University, Wuhan 430079, China
期刊：
Journal of Physical Chemistry C,2020年124(38):20746-20756 ISSN：1932-7447
通讯作者：
Sarkis, Sarkis
作者机构：
[Sarkis, Sarkis; Huang, Xintang] Cent China Normal Univ, Coll Phys Sci & Technol, Inst Nanosci & Nanotechnol, Wuhan 430079, Peoples R China.
通讯机构：
[Sarkis, Sarkis] C;Cent China Normal Univ, Coll Phys Sci & Technol, Inst Nanosci & Nanotechnol, Wuhan 430079, Peoples R China.
关键词：
Capacitance;Cobalt;Electric discharges;Electrolytes;Energy conversion;Nanorods;Supercapacitor;Asymmetric supercapacitor;Electrochemical behaviors;Energy conversion and storages;Galvanostatic charges;High electrical conductivity;Metal electrode materials;Specific capacitance;Specific energy density;Electrochemical electrodes
摘要：
A porous cobalt nanorods (Co-NRs) structure is successfully synthesized via annealing of Co(OH)(2) nanorods at 350 degrees C with the presence of ethanol glycol (EG). The Co-NRs@Ni foam electrode displayed an ultrahigh specific capacitance of 3142.8 F g(-1) at a current density of 1 mA cm(-2); high-rate capability behavior can be proved by 87% of initial capacitance maintenance at 20 mA cm(-2) and an excellent cycling life with a retention of 124.5% after 20,000 galvanostatic charge-discharge (GCD) cycles. The excellent electrochemical behavior of the Co-NRs@Ni foam electrode can be ascribed to the hierarchical porous nanorod structure, which can offer high electrical conductivity, enhance the electrolyte ions diffusion pathways, and abound electrochemical active sites. Its asymmetric supercapacitor device Co-NRs parallel to AC showed a specific energy density of 143.94 Wh kg(-1), with a power density of 791.5 W kg(-1) at a current density of 1 A g(-1). Furthermore, an excellent cycling life behavior by retaining 95.88% of its initial capacitance throughout 20,000 GCD cycles was achieved. The exceptional electrochemical behavior of the Co-NRs@Ni foam electrode displays its great potential in applications as a promising electrode material candidate for energy conversion and storage equipment.
摘要：
The coating of silica (SiO2) on quantum dots (QDs) has been widely studied, because SiO2 can protect QDs from the damages of moisture, radiation, and heat. Conventional SiO2 coating methods for QDs are usually performed in aqueous or emulsion solutions, which require the addition of water for the hydrolysis of SiO2 precursors and lead to the photoluminescence (PL) quenching of QDs. To address this issue, a novel SiO2 coating approach on single particle level was developed by the thermally forcing decomposition of tetraethyl orthosilicate in toluene. The CdSe/CdS/ZnS:Al@SiO2 nanoparticles (NPs) were prepared without decreasing the original PL quantum yield (QY), which exhibited much better photo and thermal stability in comparison with uncoated CdSe/CdS/ZnS:Al QDs. Furthermore, due to the natural formation of silanol groups on the SiO2 shell, CdSe/CdS/ZnS:Al@SiO2 NPs present not only good solubility but also excellent room temperature stability in phosphate buffer saline solution for several months. (C) 2019 Elsevier B.V. All rights reserved.
通讯机构：
[Huang, Xintang] C;Cent China Normal Univ, Coll Phys Sci & Technol, Inst Nanosci & Nanotechnol, Wuhan 430079, Peoples R China.
关键词：
Capacitance;Electric energy storage;Electrochemical electrodes;Hybrid materials;Iron oxides;Lithium compounds;Manganese oxide;Nanorods;Polypyrroles;Stabilization;Supercapacitor;Decomposition of waters;Electrochemical Li^+ pre-insertion;Electrochemical performance;Electron conductivity;High energy densities;Hybrid capacitor;Hybrid energy storage devices;Oxide nanorod arrays;Phosphorus compounds
摘要：
The operating voltage of aqueous hybrid capacitors are generally limited to 2 V due to the decomposition of water, which significantly impede the progress of energy density. Herein, the porous low-crystalline FeOx nanorod array on carbon cloth is prepared by the novel electrochemical Li+ pre-insertion method, and a 2.4 V high-voltage aqueous hybrid capacitor device is successfully obtained after matching with the nickel doped (Ni0.25Mn0.75)(3)O-4@PPy nanoprisms array. The low-crystalline structure of FeOx preserved during the first Li+ insertion and space created via the elimination of low-crystalline Li2O dramatically provides sufficient electronic and ionic transfer channels. In addition, surface polypyrrole (PPy) stabilization is employed to further enhance electron conductivity and electrode stabilization. Benefitting from increasing active sites, fast ion diffusion and electron transfer the obtained lowcrystalline FeOx@PPy electrode exhibits improved electrochemical performance, especially for capacitance and stability. Moreover, the aqueous hybrid capacitors (Ni0.2.5Mn0.75)(3)O-4@FFy//FeOx@PPy device delivers a high energy density of 72.4 Wh kg(-1) with the ultra-high voltage, and admirable cycling stability (94.7% retention after 4000 cycles). Our work highlights the novel electrochemical Li+ pre-insertion method to achieve superior low-crystalline electrodes materials and designs the high-voltage aqueous hybrid energy storage devices. (C) 2020 Elsevier B.V. All rights reserved.
