Highly flexible reduced graphene oxide@polypyrrole-polyethylene glycol foam for supercapacitors

被引：20

作者：

Cai, Chaoyue ^{[1
,2
]}

Fu, Jialong ^{[1
,2
]}

Zhang, Chengyan ^{[1
,2
]}

Wang, Cheng ^{[2
]}

Sun, Rui ^{[2
]}

Guo, Shufang ^{[1
,2
]}

Zhang, Fan ^{[1
,2
]}

Wang, Mingyan ^{[1
,2
]}

Liu, Yuqing ^{[3
,4
]}

Chen, Jun ^{[4
]}

机构：

[1] Jiangsu Ocean Univ, Dept Chem Engn, Lianyungang 222005, Peoples R China

[2] Jiangsu Ocean Univ, Coinnovat Ctr Jiangsu Marine Bioind Technol, Jiangsu Key Lab Marine Bioresources & Environm, Jiangsu Key Lab Marine Biotechnol, Lianyungang 222005, Peoples R China

[3] Univ Elect Sci & Technol China, State Key Lab Elect Thin Film & Integrated Device, Chengdu 610054, Peoples R China

[4] Univ Wollongong, ARC Ctr Excellence Electromat Sci, Intelligent Polymer Res Inst, Australian Inst Innovat Mat, Innovat Campus,Squires Way, North Wollongong, NSW 2519, Australia

来源：

RSC ADVANCES | 2020年 / 10卷 / 49期

基金：

澳大利亚研究理事会;

关键词：

POLYMER; PERFORMANCE; ELECTRODE; COMPOSITE; NANOCOMPOSITE; CONDUCTIVITY; OXIDATION; HYBRID; FILM;

D O I：

10.1039/d0ra05199c

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A flexible and free-standing 3D reduced graphene oxide@polypyrrole-polyethylene glycol (RGO@PPy-PEG) foam was developed for wearable supercapacitors. The device was fabricated sequentially, beginning with the electrodeposition of PPy in the presence of a PEG-borate on a sacrificial Ni foam template, followed by a subsequent GO wrapping and chemical reduction process. The 3D RGO@PPy-PEG foam electrode showed excellent electrochemical properties with a large specific capacitance of 415 F g(-1)and excellent long-term stability (96% capacitance retention after 8000 charge-discharge cycles) in a three electrode configuration. An assembled (two-electrode configuration) symmetric supercapacitor using RGO@PPy-PEG electrodes exhibited a remarkable specific capacitance of 1019 mF cm(-2)at 2 mV s(-1)and 95% capacitance retention over 4000 cycles. The device exhibits extraordinary mechanical flexibility and showed negligable capacitance loss during or after 1000 bending cycles, highlighting its great potential in wearable energy devices.

引用

页码：29090 / 29099

页数：10

共 45 条

[1] Hierarchical Ni(OH)2/Polypyrrole/Graphene Oxide Nanosheets as Excellent Electrocatalysts for the Oxidation of Urea [J].