Preparation of Hydrous Ruthenium Oxide/Activated Carbon Electrode and Its Supercapacitive Performance in 6 M KOH

M. A. A. Mohd Abid; R.N.A.R. Seman; S.M. Effendi

M. A. A. Mohd Abid Universiti Teknikal Malaysia Melaka
R.N.A.R. Seman
S.M. Effendi

Abstract

Hydrous ruthenium oxide (RuO₂) and activated carbon (AC) denoted as RuO₂/AC composite electrodes were prepared by combining sol–gel and conventional slurry processing techniques. In this paper, several different compositions of composite electrode slurries were fabricated using RuO₂ and AC powders. Benefits from the combined advantages of both RuO₂ and AC in such a unique structure were the RuO₂/AC composite electrode supercapacitors exhibited the specific capacitance (5.10 F g^-1 for RuO₂ 50 wt%) and also have good cycling stability. These findings demonstrated the importance and great potential of RuO₂/AC composites in the development of the energy-storage system especially for the high power supercapacitor electrode.

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