| KOH和K3[Fe(CN) 6]混合液中颗粒孔径对NiO电极电容器性能的影响 |
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| 引用本文： | 吴雯,侯孟炎,周丹丹,夏永姚.KOH和K3[Fe(CN) 6]混合液中颗粒孔径对NiO电极电容器性能的影响[J].电化学,2011,17(2):169-174. |
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| 作者姓名： | 吴雯 侯孟炎 周丹丹 夏永姚 |
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| 作者单位： | 复旦大学 化学系，上海市分子催化和功能材料重点实验室，上海200433 |
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| 基金项目： | 国家自然科学基金重点项目(20633040); 上海市科委(08DZ2270500)资助 |
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| 摘 要： | 合成5种孔径大小分布的NiO样品，测定各NiO电极在3mol/L KOH或其添加K3Fe(CN)6]的电解液中的电化学电容性能.结果表明，NiO电极孔径分布在15nm左右，可有效减慢铁氰酸根离子向液相的扩散，从而提高N4 (NiO)电极的充放电效率.
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| 关 键 词： | 超级电容器 NiO 多孔材料 K3[Fe(CN) 6] |
| 收稿时间： | 2010-12-02 |
Effect of Pore Size on Pseudo-Capacitive Performance of NiO in the Mixed Electrolyte of KOH and Hexacyanoferrate |
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| WU Wen,HOU Meng-yan,ZHOU Dan-dan,XIA Yong-yao.Effect of Pore Size on Pseudo-Capacitive Performance of NiO in the Mixed Electrolyte of KOH and Hexacyanoferrate[J].Electrochemistry,2011,17(2):169-174. |
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| Authors: | WU Wen HOU Meng-yan ZHOU Dan-dan XIA Yong-yao |
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| Institution: | WU Wen,HOU Meng-yan,ZHOU Dan-dan,XIA Yong-yao(Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials,Fudan University,Shanghai 200433,China) |
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| Abstract: | In this paper,five kinds of NiO samples with different pore size distributions were synthesized.The electrochemical capacitance of the samples were characterized in 3 mol/L KOH solution with and without hexacyanoferrate addition.Electrochemical test results indicated that the NiO sample with an optimum pore size of about 15 nm shows high Coulombic efficiency of the N4(NiO) electrode as the redox reaction of hexacyanoferrate ions would be limited in the pore,thus prevent ion diffusion into the bulk electroly... |
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| Keywords: | supercapacitors nickel oxides porous materials hexacyanoferrate |
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