| 石墨烯纳米片的简易合成及其超级电容性能研究 |
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| 引用本文： | 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(6): 611-615. DOI: 10.3724/SP.J.1077.2013.12398 |
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| 作者姓名： | 刘 奕 赵玉亮 高兆芬 姜 霞 曾宇平 |
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| 作者单位： | (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) |
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| 基金项目： | 国家自然科学基金(50872142/E0207); 山东省自然科学基金(2010ZRA04003) |
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| 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。
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| 关 键 词： | 石墨烯纳米片 硫代氨基脲 超级电容性能 |
| 收稿时间： | 2012-06-26 |
| 修稿时间： | 2012-11-01 |
Facile Synthesis and Supercapacitor Properties of Graphene Nanosheets |
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| 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(6): 611-615. DOI: 10.3724/SP.J.1077.2013.12398 |
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| Authors: | LIU Yi ZHAO Yu-Liang GAO Zhao-Fen JIANG Xia ZENG Yu-Ping |
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| Affiliation: | (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) |
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| 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. |
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| Keywords: | graphene nanosheets thiosemicarbazide (CH5N3S) supercapacitive properties |
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