Nitrogen-Doped Carbon Networks for High Energy Density Supercapacitors Derived from Polyaniline Coated Bacterial Cellulose

被引：343

作者：

Long, Conglai ^{[1
]}

Qi, Dongping ^{[1
]}

Wei, Tong ^{[1
]}

Yan, Jun ^{[1
]}

Jiang, Lili ^{[1
]}

Fan, Zhuangjun ^{[1
]}

机构：

[1] Harbin Engn Univ, Coll Mat Sci & Chem Engn, Minist Educ, Key Lab Superlight Mat & Surface Technol, Harbin 150001, Peoples R China

来源：

ADVANCED FUNCTIONAL MATERIALS | 2014年 / 24卷 / 25期

基金：

美国国家科学基金会;

关键词：

ASYMMETRIC SUPERCAPACITOR; ELECTRODE MATERIALS; HIGH-POWER; ELECTROCHEMICAL PROFILE; ACTIVATED CARBONS; HYBRID; PERFORMANCE; GRAPHENE; COMPOSITES; SURFACE;

D O I：

10.1002/adfm.201304269

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Bacterial cellulose (BC) is used as both template and precursor for the synthesis of nitrogen-doped carbon networks through the carbonization of polyaniline (PANI) coated BC. The as-obtained carbon networks can act not only as support for obtaining high capacitance electrode materials such as activated carbon (AC) and carbon/MnO2 hybrid material, but also as conductive networks to integrate active electrode materials. As a result, the as-assembled AC//carbon-MnO2 asymmetric supercapacitor exhibits a considerably high energy density of 63 Wh kg(-1) in 1.0 M Na2SO4 aqueous solution, higher than most reported AC//MnO2 asymmetric supercapacitors. More importantly, this asymmetric supercapacitor also exhibits an excellent cycling performance with 92% specific capacitance retention after 5000 cycles. Those results offer a low-cost, eco-friendly design of electrode materials for high-performance supercapacitors.

引用

页码：3953 / 3961

页数：9

共 55 条

[1]

An KH, 2001, ADV FUNCT MATER, V11, P387, DOI 10.1002/1616-3028(200110)11:5<387::AID-ADFM387>3.0.CO

[2]

2-G

[3] The characterization of activated carbons with oxygen and nitrogen surface groups [J].