石墨烯纳米片的简易合成及其超级电容性能研究

doi:10.3724/SP.J.1077.2013.12398

无机材料学报 ›› 2013, Vol. 28 ›› Issue (06): 611-615.DOI: 10.3724/SP.J.1077.2013.12398

石墨烯纳米片的简易合成及其超级电容性能研究

刘奕^1,2, 赵玉亮¹, 高兆芬³, 姜霞¹, 曾宇平²

(1. 枣庄学院化学化工与材料学院, 枣庄277160; 2.中国科学院上海硅酸盐研究所, 上海200050; 3. 上饶师范学院化学系, 上饶334001)

收稿日期:2012-06-26 修回日期:2012-11-01 出版日期:2013-06-20 网络出版日期:2013-05-20
作者简介:刘奕(1967–), 男, 博士, 副教授. E-mail: 1967liuyi@163.com
基金资助:
国家自然科学基金(50872142/E0207); 山东省自然科学基金(2010ZRA04003)

Facile Synthesis and Supercapacitor Properties of Graphene Nanosheets

LIU Yi^1,2, ZHAO Yu-Liang¹, GAO Zhao-Fen³, JIANG Xia¹, ZENG Yu-Ping²

(1. College of Chemistry Chemical Engineering & Material Science, Zaozhuang University, Zaozhuang 277160, China; 2. Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China, 3. Department of Chemistry, Shangrao Normal College, Shangrao 334001, China)

Received:2012-06-26 Revised:2012-11-01 Published:2013-06-20 Online:2013-05-20
About author:LIU Yi. E-mail: 1967liuyi@163.com
Supported by:
National Natural Science Foundation of China (50872142/E0207); Natural Science Foundation of Shandong Province (2010ZRA04003)

摘要/Abstract

摘要： 以硫代氨基脲(CH₅N₃S)为还原剂, 通过还原氧化石墨(GO)制备了石墨烯纳米片(GNS)。利用XRD, FE-SEM, AFM和UV-Vis光谱对产物的结构和形貌进行分析, 并使用循环伏安和恒流充放电等测试手段来表征其超级电容性能。实验结果表明, 所制备的GNS具有良好的结晶状态, 并且在水溶液中具有良好的分散性。以GNS纳米片为电极材料, 在3 mol/L KOH电解质溶液中, 在500 mA/g电流密度测试条件下所得比电容量为75 F/g。而且GNS纳米片显示出了良好的电化学循环稳定性。

关键词: 石墨烯纳米片, 硫代氨基脲, 超级电容性能

Abstract: Graphene nanoplates (GNS) were prepared from oxided graphite by using thiosemicarbazide (CH₅N₃S) as a reducing agent. The microstructures and morphologies of products were subsequently characterized by XRD, FE-SEM, AFM and UV-Vis adsorption spectra. The performances of super-capacitor were characterized using cyclic voltammetry and constant current charge-discharge tests. The experimental results indicated that the as-prepared GNS possessed fair crystalline state and admirable aqueous dispersibility. An electrode prepared from GNS exhibited a specific capacitance of 75 F/g at a current density of 500 mA/g in 3 mol/L KOH electrolyte. Moreover, the GNS showed excellent electrochemical cycle performance.

Key words: graphene nanosheets, thiosemicarbazide (CH5N3S), supercapacitive properties

中图分类号:

TQ174

刘奕, 赵玉亮, 高兆芬, 姜霞, 曾宇平. 石墨烯纳米片的简易合成及其超级电容性能研究[J]. 无机材料学报, 2013, 28(06): 611-615.

LIU Yi, ZHAO Yu-Liang, GAO Zhao-Fen, JIANG Xia, ZENG Yu-Ping. Facile Synthesis and Supercapacitor Properties of Graphene Nanosheets[J]. Journal of Inorganic Materials, 2013, 28(06): 611-615.

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石墨烯纳米片的简易合成及其超级电容性能研究

Facile Synthesis and Supercapacitor Properties of Graphene Nanosheets

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