Flexible and freestanding electrode based on polypyrrole/graphene/bacterial cellulose paper for supercapacitor

被引：111

作者：

Ma, Lina ^{[1
]}

Liu, Rong ^{[1
]}

Niu, Haijun ^{[2
]}

Zhao, Min ^{[1
]}

Huang, Yudong ^{[1
]}

机构：

[1] Harbin Inst Technol, Sch Chem & Chem Engn, MILT Key Lab Crit Mat Technol New Energy Convers, State Key Lab Urban Water Resource & Environm, Harbin 150001, Peoples R China

[2] Heilongjiang Univ, Sch Chem & Chem Engn, Dept Macromol Mat & Engn, Key Lab Funct Inorgan Mat Chem,Minist Educ, Harbin 150080, Peoples R China

来源：

COMPOSITES SCIENCE AND TECHNOLOGY | 2016年 / 137卷

基金：

中国国家自然科学基金;

关键词：

Bacterial cellulose; Polypyrrole; Graphene; Flexible electrode; Supercapacitor; GRAPHENE-POLYPYRROLE HYBRID; HIGH-PERFORMANCE; ENERGY-STORAGE; COMPOSITE; OXIDE; CAPACITANCE; HYDROGELS; DEVICES; SHEETS; FILMS;

D O I：

10.1016/j.compscitech.2016.10.027

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

A simple and low-cost approach toward flexible and freestanding electrode is developed. The method involves coating the polypyrrole (PPY) encapsulated graphene (RGO) composites on bacterial cellulose, from which large mass loading of 8.93 mg cm(-2) is obtained. Benefiting from the well structural features, the flexible PPY/RGO/BC paper can be directly acted as supercapacitor electrode without metallic current collectors, binder and additives, and achieves a high areal capacitance (2100 mF cm(-2) at 2 mA cm(-2)), good rate performance (1570 mF cm(-2) retention at 50 mA cm(-2)) and high flexibility (suitable for arbitrary angles, even 180). Moreover, the assembled symmetric supercapacitor delivers as high as 790 mF cm(-2) of areal capacitance and 0.11 mWh cm(-2) of energy density. Therefore, this strategy provides a facile method for design of flexible supercapacitor electrodes with high areal capacitance. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：87 / 93

页数：7

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