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

Authors

Wen WU, Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, China;
Meng-yan HOU, Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, China;
Dan-dan ZHOU, Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, China;
Yong-yao XIA, Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, China;Follow

Corresponding Author

Yong-yao XIA(yyxia@fudan.edu.cn)

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 .

Graphical Abstract

Keywords

supercapacitors, nickel oxides, porous materials, hexacyanoferrate

DOI Link

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

Publication Date

2011-05-28

Online Available Date

2011-05-06

Revised Date

2011-01-28

Received Date

2010-12-02

Recommended Citation

Wen WU, Meng-yan HOU, Dan-dan ZHOU, Yong-yao XIA. Effect of Pore Size on Pseudo-Capacitive Performance of NiO in the Mixed Electrolyte of KOH and Hexacyanoferrate[J]. Journal of Electrochemistry, 2011 , 17(2): 169-174.
DOI: 10.61558/2993-074X.2085
Available at: https://jelectrochem.xmu.edu.cn/journal/vol17/iss2/5