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
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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