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Article
Synthesis and Characterization of Hydrous Ruthenium Oxide-Carbon Supercapacitors
Journal of the Electrochemical Society
  • Manikandan Ramani, University of South Carolina - Columbia
  • Bala S Haran, University of South Carolina - Columbia
  • Ralph E White, University of South Carolina - Columbia
  • Branko N Popov, University of South Carolina - Columbia
Publication Date
1-1-2001
Document Type
Article
Subject Area(s)
Chemical Engineering
Disciplines
Abstract
It is shown that composite Ru oxide-carbon based supercapacitors possess superior energy and power densities as compared to bare carbon. An electroless deposition process was used to synthesize the ruthenium oxide-carbon composites. Ru is dispersed on the carbon matrix as small particles. The effect of electrochemical oxidation and temperature treatment on the material performance has been studied extensively. Increasing the oxidation temperature reduces the proton transport rate and also increases the degree of crystallinity of the deposits. This adversely affects the performance of the composite. Loading a small amount of Ru oxide (9 wt %) on carbon increases the capacitance from 98 to 190 F/g.
Citation Information
Manikandan Ramani, Bala S Haran, Ralph E White and Branko N Popov. "Synthesis and Characterization of Hydrous Ruthenium Oxide-Carbon Supercapacitors" Journal of the Electrochemical Society (2001) p. A374 - A380
Available at: http://works.bepress.com/ralph_white/279/