A High-Performance Supercapacitor with Well-Dispersed Bi2O3 Nanospheres and Active-Carbon Electrodes

被引：51
|
作者：
Li, Jiangfeng [1 ]
Wu, Qingsheng [1 ,2 ]
Zan, Guangtao [2 ]
机构：
[1] Tongji Univ, Dept Chem, Key Lab Yangtze River Water Environm, Minist Educ, Shanghai 200092, Peoples R China
[2] Tongji Univ, Sch Mat Sci & Engn, Shanghai 200092, Peoples R China
来源：
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY | 2015年 / 35期
基金：
中国国家自然科学基金;
关键词：
Nanostructures; Organic-inorganic composite hybrids; Supercapacitors; Electron transport; Bismuth; ENERGY DENSITY; ELECTROCHEMICAL PERFORMANCE; MESOPOROUS CARBON; HIGH-POWER; COMPOSITE; NANOCOMPOSITE; MNO2; FILM; NIO;
D O I：
10.1002/ejic.201500904
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
A simple and low-cost method to fabricate Bi2O3/active-carbon nanocomposites with high capacitive properties was explored. In particular, the composites synthesized at a bismuth nitrate/active carbon weight ratio of 2:1 exhibited a maximum specific capacitance of 466 Fg(-1) at a current density of 1 Ag-1 and retained up to 335 Fg(-1) even at a current density of 5 Ag-1. In addition, these composites also showed good capacity over 3000 cycles. The excellent electrochemical properties could be due to their high specific surface area, abundant pore volume, and proper loading of Bi2O3 nanospheres.
引用
收藏
页码：5751 / 5756
页数：6
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