Electrochemical Behavior of Co-Ru Composite in Alkaline Solution

Authors

Su-mei YAO, Institute of New Energy Material Chemistry,Nankai University,Tianjin 300071,China;
Guo-chun LI, Institute of New Energy Material Chemistry,Nankai University,Tianjin 300071,China;
Xue-ping GAO, Institute of New Energy Material Chemistry,Nankai University,Tianjin 300071,China;

Corresponding Author

Xue-ping GAO(xpgao@nankai.edu.cn)

Abstract

The electrochemical properties of Ru doped cobalt hydroxides synthesized via homogeneous chemical co-precipitation were investigated in 6 mol·L-1 KOH solution by galvanostatic charge-discharge process and cyclic voltammetry(CV).It is demonstrated that Ru doped cobalt hydroxides exhibited good capacitive characteristic and high specific capacitance.The sample with a Co/Ru molar ratio of 8 /1 shows the optimized electrochemical performance,including capacitive property and discharge capacity.The microstructure and morphology of the obtained Ru doped hydroxides were characterized by X-ray diffraction(XRD) and scanning electron microscope(SEM).The amorphous structure of ruthenium dioxide nanoparticles and single-crystal structure of Co(OH)2 platelets were confirmed.Based on a structure analysis and electrochemical measurement,the reversible faradic reaction within electroactive materials is dominant for the capacitive characteristic and high capacity.

Keywords

Co-Ru composite, alkaline solution, electrochemical behavior, capacitive property

DOI Link

https://doi.org/10.61558/2993-074X.2038

Publication Date

2010-02-28

Online Available Date

2010-02-28

Revised Date

2010-02-28

Received Date

2010-02-28

Recommended Citation

Su-mei YAO, Guo-chun LI, Xue-ping GAO. Electrochemical Behavior of Co-Ru Composite in Alkaline Solution[J]. Journal of Electrochemistry, 2010 , 16(1): 56-59.
DOI: 10.61558/2993-074X.2038
Available at: https://jelectrochem.xmu.edu.cn/journal/vol16/iss1/12

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