CaMoO4 Nanoparticle-Doped Graphene Oxide as Electrodes for High-Performance Supercapacitors

被引：5
作者：
Chen, Gang [1 ]
Chen, Guangzhou [1 ]
Pan, Li [1 ]
Chen, Dongsheng [1 ]
机构：
[1] Shanghai Univ Elect Power, Coll Math & Phys, Shanghai 200090, Peoples R China
来源：
NANO | 2022年 / 17卷 / 03期
基金：
中国国家自然科学基金;
关键词：
CaMoO4; graphene oxide; supercapacitor; electrode material; HIGH-ENERGY DENSITY; ELECTROCHEMICAL PROPERTIES; SOLVOTHERMAL SYNTHESIS; ARRAYS; COMPOSITES; NANOSHEETS; DESIGN;
D O I：
10.1142/S1793292022500278
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
CaMoO4 nanoparticles/graphene oxide (CaMoO4/GO) composites are prepared by a facile hydrothermal method. CaMoO4 nanoparticles are adsorbed on the GO sheets by in situ reduction. Along with the synergistic effect between the CaMoO4 and GO sheets, the CaMoO4/GO nanocomposites exhibited high performances as electrodes for supercapacitors. The specific capacity (Q(s)) of the CaMoO4/GO electrodes could be up to 571.82 F. g(-1) at 0.5 A . g(-1). Furthermore, asymmetric supercapacitors (ASCs) are mainly composed of CaMoO4/GO composite and activated carbon (AC), respectively. The fabricated CaMoO4/GO//AC devices display an energy density of 25.18 W . h . kg(-1) at 1710.3 W . kg(-1). A blue LED is powered using two series-connected two ASC devices. These results indicate the considerable potential of CaMoO4/GO for use in high-performance energy storage devices.
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页数：12
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