Electrochemically Synthesized Polypyrrole/Graphene Composite Film for Lithium Batteries

被引：167

作者：

Yang, Yang ^{[1
]}

Wang, Caiyun ^{[1
]}

Yue, Binbin ^{[1
]}

Gambhir, Sanjeev ^{[1
]}

Too, Chee O. ^{[1
]}

Wallace, Gordon G. ^{[1
]}

机构：

[1] Univ Wollongong, ARC Ctr Excellence Electromat Sci, Intelligent Polymer Res Inst, AIIM Facil, Wollongong, NSW 2522, Australia

来源：

ADVANCED ENERGY MATERIALS | 2012年 / 2卷 / 02期

基金：

澳大利亚研究理事会;

关键词：

graphene; graphene oxide; lithium batteries; polypyrrole; rate capability; GRAPHENE OXIDE; CONDUCTING POLYMERS; CARBON NANOTUBES; NANOSHEETS; REDUCTION; NANOCOMPOSITES; ELECTRODES; STORAGE; AREA;

D O I：

10.1002/aenm.201100449

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A polypyrrole/reduced graphene oxide (PPy/r-GO) composite film is prepared by inducing electrochemical reduction of graphene oxide incorporated into PPy as the dopant. This film has a wrinkled surface morphology with a porous structure as revealed by scanning electron microscopy. Its porous structure is attributed to the physical nature of the GO sheets, providing a templating effect during PPy deposition. This PPy/r-GO composite is characterized using in-situ UV-visible spectroelectrochemistry as well as Raman and Fourier-transform IR spectroscopy. The PPy/r-GO material shows greatly improved electrochemical properties, i.e., a high rate capability and excellent cycling stability when used as a cathode material in a lithium ion battery. It also delivers a large reversible capacity when used as an anode material, and this is mainly attributed to the reduced graphene oxide (r-GO) component. © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

引用

页码：266 / 272

页数：7

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