The hollow carbon microspheres(HCMSs) were obtained by air-oxidization using solid carbon microspheres(SCMSs) which were prepared by chemical vapor deposition with de-oiled asphalt as carbon source.The HCMSs were sensitized in SnCl2 solution
then Ru nanoparticles were deposited on the surfaces of activated HCMSs by electroless plating.By choosing a different concentration of RuCl3
the effect of chemical plating solution on Ru/HCMSs composites was discussed.The morphology and structure of the samples were characterized by FESEM
ERTEM
EDS and TG.The specific surface area of HCMSs was measured by N2 adsorption
and electrochemical properties of the composites were measured by cyclic voltammetry.The results show that Ru nanoparticles with the diameter of 15 nm are homogeneously loaded on the surfaces of HCMSs by 5 mmol/L of RuCl3 when other parameters are the same
the HCMSs get higher specific surface area comparing with SCMSs
and Ru/HCMSs has good capacitivity
which indicate the promising application in capacitance.
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references
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