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

吴雯; 侯孟炎; 周丹丹; 夏永姚

doi:10.61558/2993-074X.2085

电化学 >

2011 , Vol. 17 >Issue 2: 169 - 174

DOI: https://doi.org/10.61558/2993-074X.2085

研究论文

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

吴雯 ,
侯孟炎 ,
周丹丹 ,
夏永姚

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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

收稿日期: 2010-12-02

修回日期: 2011-01-28

网络出版日期: 2011-05-06

基金资助

国家自然科学基金重点项目（20633040）和上海市科委（08DZ2270500)

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Effect of Pore Size on Pseudo-Capacitive Performance of NiO in the Mixed Electrolyte of KOH and Hexacyanoferrate

WU Wen ,
HOU Meng-Yan ,
ZHOU Dan-Dan ,
XIA Yong-Yao

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Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, China

Received date: 2010-12-02

Revised date: 2011-01-28

Online published: 2011-05-06

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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K3[Fe(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.

关键词： 超级电容器; NiO; 多孔材料; K3[Fe(CN) 6]

本文引用格式

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 . DOI: 10.61558/2993-074X.2085

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 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 electrolyte solution .

Key words： supercapacitors; nickel oxides; porous materials; hexacyanoferrate

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