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.

引用

页数：12

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