窦辉
Professor Supervisor of Doctorate Candidates
Gender:Female
Education Level:中科院成都有机化学所
Degree:Doctoral Degree in Science
School/Department:College of Material Science and Technology
Discipline:Inorganic Chemistry. 能源动力. Organic Chemistry. Polymer Chemistry and Physics. Physical Chemistry. Material Physics and Chemistry
Business Address:材料科学与技术学院D10-B201
Contact Information:dh_msc@nuaa.edu.cn
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Affiliation of Author(s):材料科学与技术学院
Journal:Energy Technol.
Abstract:Aqueous sodium-ion capacitors (ASICs) are becoming increasingly important due to the remarkable advantages of aqueous electrolyte about the excellent ionic conductivity, non-flammability and low cost compared with organic systems. But, low capacitance of the electric double-layer capacitive material and narrow potential window of aqueous electrolyte both have negative effects on the enhancement of energy density. Therefore, we employ typical pseudocapacitive material, layered MnO2/CNTs composite as cathode to fabricate sodium ion capacitor. It needs to be emphasized that the electrochemical process involves two kinds of energy storage mechanisms, such as the reversible Na+ adsorption/desorption onto the surface of each layer and fast Na+ (de)intercalation into the 2D interlayer space. Thus, the composite delivers a high specific capacitance (322.5 F g−1 at 0.5 A g−1) and an excellent cycle stability (5000 cycles with capacitance retention of approximately 90 %). By means of the synergistic effects of the layered MnO2/CNTs cathode, sodium-ion water-in-salt electrolyte (NaWiSE) and polyimide organic anode, the as-assembled ASIC achieves a high energy density of 78.5 Wh kg−1, accompanied by high power density of 11000 W kg−1 and excellent cycle performance (even 77 % capacity retention after 10000 cycles). © 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
ISSN No.:2194-4288
Translation or Not:no
Date of Publication:2018-11-01
Co-author:Zhang, Yadi,An, Yufeng,Jiang, Jiangmin,Dong, Shengyang,Wu, Langyuan,Fu, Ruirui,Zhang Xiaogang
Correspondence Author:Dou Hui
毕业于中国科学院成都有机化学研究所,研究领域为电化学储能材料与器件,包括超级电容器、锂离子电池、锌碘电池、质子电池、锂硫电池、锌离子电池等。研究方向包括纳米结构复合电极材料、有机电极材料、硅负极粘结剂、电解质等的设计及可控制备。作为项目负责人先后承担了国家自然科学基金及江苏省自然基金等项目多项,作为学术骨干参加了国家重点研发项目、江苏省前沿引领基础研究专项、江苏省重点研发计划、国家“973”计划等课题。获得省部级奖项2项,其他奖项2项。以第一作者或通讯作者身份在Adv. Funct. Mater., Chem. Comm., ACS nano, Energy storage Mater., ACS Appl. Mater. Interfaces, J. Mater. Chem. A, J. Power Sources, Green Chem.等学术刊物上发表电化学能源相关研究论文70余篇;作为通讯作者受邀在ChemElectroChem、Mater. Today、Small Methods、Chin. Chem. Lett.撰写发表相关综述论文4篇。担任全国离子液体专业委员会委员、江苏省化学化工学会理事、教育部学位论文评审专家、江苏省科技厅、江西省科技厅评审专家等社会服务工作。受邀为Angewandte Chemie、Adv. Mater.、Adv. Funct. Mater.、 J. Mater. Chem. A、Chem. Eng. J.等国际期刊审稿人。