Journal
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
Volume 38, Issue 5, Pages 628-634Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/15567036.2013.809391
Keywords
Anode catalyst; electrochemical impedance spectroscopy; electrooxidation; ethanol; fuel cells; platinum; ruthenium
Funding
- Selcuk University [S.U. 11401129]
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Carbon supported Pt-Ru catalysts were prepared at varying Pt:Ru ratios by polyol method. The crystallite sizes of these catalysts were determined by X-ray diffraction technique. The specific surface areas of these catalysts were also defined by Brunauer-Emmett-Teller technique. Cyclic voltammetry, chronoamperometry, and electrochemical impedance spectroscopy measurements were conducted on these carbon supported Pt-Ru catalysts to investigate the effect of ruthenium on the ethanol electrooxidation kinetics. Results indicated that Pt-Ru (25:1) catalyst showed the best ethanol electrooxidation activity. In conclusion, ethanol electrooxidation mechanism was proposed.
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