Effects of oxygen-containing functional groups on the supercapacitor performance of incompletely reduced graphene oxides

被引：47
|
作者：
Chen, Yiming [1 ,2 ]
Zhang, Zhiping [1 ]
Huang, Zidong [1 ]
Zhang, Haiyan [1 ,2 ]
机构：
[1] Guangdong Univ Technol, Sch Mat & Energy, Guangzhou 510006, Guangdong, Peoples R China
[2] Guangdong Prov Key Lab Funct Soft Condensed Matte, Guangzhou 510006, Guangdong, Peoples R China
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2017年 / 42卷 / 10期
基金：
中国国家自然科学基金;
关键词：
Oxygen functional groups; Incompletely reduced graphene; oxide; Pseudocapacitance; Supercapacitor; ACTIVATED CARBON AEROGELS; DOUBLE-LAYER CAPACITOR; HIGH-SURFACE-AREA; GRAPHITE OXIDE; ELECTRODE MATERIAL; POROUS CARBON; ENERGY; NANOPARTICLES; NANOTUBES; FIBERS;
D O I：
10.1016/j.ijhydene.2016.08.054
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：
Incompletely reduced graphene (RG) was prepared by reduction of graphite oxides via microwave irradiation at the power of 800 W and 1200 W, respectively. Fourier transform infrared spectra and X-ray photoelectron spectroscopy analyses showed that the RG contains flourish oxygen functional groups such as carboxyl, phenol, carbonyl, and quinone groups. X-ray diffraction, scanning electron microscopy and transmission electron microscopy were employed to investigate the structure, morphology of the RG samples. The electrochemical performance of the RG electrodes were measured in 5 M NaOH, 1 M H2SO4 and 1 M Na2SO4 electrolytes respectively. The supercapacitor performance of oxygen containing functional group behavior was investigated. The specific pseudocapacitance per unit atomic percentage for either carboxyl or phenol group in 1 M H2SO4 and either carbonyl and quinone group in 5 M NaOH were obtained by galvano-statically charge/discharge measurements (C) 2016 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
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页码：7186 / 7194
页数：9
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