Coherent V^(4+)-rich V_(2)O_(5)/carbon aerogel nanocomposites for high performance supercapacitors

作     者：Wenchao Bi Shengyuan Deng Haisha Tang Yuan Liu Jun Shen Guohua Gao Guangming Wu M.Atif MS AlSalhi Guozhong Cao 毕文超;邓声远;汤海莎;刘源;沈军;高国华;吴广明;MAtif;MS AlSalhi;曹国忠

作者机构：Departments of PhysicsCollege of ScienceUniversity of Shanghai for Science and TechnologyShanghai 200093China Shanghai Key Laboratory of Special Artificial MicrostructureSchool of Physics Science and EngineeringTongji UniversityShanghai 200092China Department of Materials Science and EngineeringUniversity of WashingtonSeattleWA 98195-2120United States Research Chair on Laser Diagnosis of CancersDepartment of Physics and AstronomyCollege of ScienceKing Saud University11451RiyadhSaudi Arabia Department of Physics and AstronomyCollege of ScienceKing Saud University11451RiyadhSaudi Arabia 

出 版 物：《Science China Materials》 (中国科学（材料科学（英文版）)

年 卷 期：2022年第65卷第7期

页      面：1797-1804页

核心收录：

学科分类：080801[工学-电机与电器] 0808[工学-电气工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0702[理学-物理学] 

基　　金：support from the National Natural Science Foundation of China(51872204,52072261,and 22011540379) Shanghai Sailing Program(21YF1430900) the National Key Research and Development Program of China(2017YFA0204600) Shanghai Social Development Science and Technology Project(20dz1201800) supported by the National Natural Science Foundation(1803256) 

主　　题：V_(2)O_(5) V^(4+) carbon aerogel kinetics supercapacitor 

摘      要：V^(4+)-rich V_(2)O_(5)/carbon aerogel(V^(4+)-V_(2)O_(5)/CA)composites were synthesized as electrode materials for supercapacitors via in-situ hydrolysis-condensation *** aerogel(CA)promotes the deposition of amorphous vanadium oxide and catalyzes the crystallization of V^(4+)-rich V_(2)O_(5)nanosheets at much reduced *** a uniform distribution of V_(2)O_(5)nanosheets in CA,the special structure provides a large specific area and reactive *** also synergistically improves the electrical conductivity and structural *** addition,rich V^(4+) would enhance the intrinsic electrical conductivity of V_(2)O_(5),promote ion diffusion and catalyze the electrochemical ***,V^(4+)-V_(2)O_(5)/CA exhibits much enhanced specific capacitance(405 F g^(-1) at 0.5 A g^(-1)),high energy density(56 W h kg^(-1) with a power density of 250 W kg^(-1))and long cycle life(96%capacitance retention after 40,000 cycles).