| 模板法制备的有序介孔Co3O4的电化学电容行为 |
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| 引用本文： | 吴雯,王永刚,李峰,夏永姚.模板法制备的有序介孔Co3O4的电化学电容行为[J].化学学报,2009,67(3):208-212. |
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| 作者姓名： | 吴雯 王永刚 李峰 夏永姚 |
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| 作者单位： | (复旦大学化学系 上海 200433) |
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| 基金项目： | 国家自然科学基金，国家重点基础研究发展规划(973计划) |
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| 摘 要： | 以介孔硅作为模板合成有序的介孔Co3O4, 在6 mol/L KOH电解液里进行电化学性能的测试. 结果表明具有有序介孔结构的Co3O4, 其比容量可以达到250 F/g, 大约为在550 ℃下直接煅烧Co(NO3)•6H2O所得的Co3O4容量的4倍. 其外该材料还表现出良好的倍率特性, 这一现象可归因于有序的介孔结构增大了有效的反应表面积, 同时有利于离子在其中传递.
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| 关 键 词： | 超级电容器 Co3O4 介孔结构 |
| 收稿时间： | 2007-12-3 |
| 修稿时间： | 2008-10-7 |
Electrochemical Capacitance Performance of Ordered Mesoporous Co3O4 Synthesized by Template Method |
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| Wu Wen,Wang Yonggang,Li Feng,Xia Yongyao.Electrochemical Capacitance Performance of Ordered Mesoporous Co3O4 Synthesized by Template Method[J].Acta Chimica Sinica,2009,67(3):208-212. |
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| Authors: | Wu Wen Wang Yonggang Li Feng Xia Yongyao |
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| Institution: | (Chemistry Department and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433) |
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| Abstract: | Ordered crystallized Co3O4 nanoarrays were synthesized by replicating mesoporous silica template and its electrochemical capacitance performance was evaluated in 6 mol/L KOH electrolyte solution. Electrochemical tests results indicated that the ordered mesoporous structure of Co3O4 nanoarrays provide a capacitance of about 250 F/g, approximately four times larger than that of Co3O4 prepared by direct calcining Co(NO3)•6H2O at 550 ℃ and also exhibits a good rate capability. This is due to that the well ordered mesoporous structure provide large specific surface area and facilitates the fast transport of the electrolyte. |
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| Keywords: | Co3O4 |
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