Journal of the Serbian Chemical Society (Nov 2007)

Wall-to-liquid mass transfer in fluidized beds and vertical transport of inert particles

  • NEVENKA BOSKOVIC–VRAGOLOVIC,
  • RADMILA GARIC–GRULOVIC,
  • ZELJKO GRBAVCIC

Journal volume & issue
Vol. 72, no. 11
pp. 1103 – 1113

Abstract

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The electrochemical oxidation of methanol in NaOH solution was examined on a thin film Pt2Ru3/C electrode. The XRD pattern revealed that the Pt2Ru3 alloy consisted of a solid solution of Ru in Pt and a small amount of Ru or a solid solution of Pt in Ru. It was shown that in alkaline solution, the difference in activity between Pt/C and Pt2Ru3/C is significantly smaller than in acid solution. It is proposed that the reaction follows a quasi bifunctional mechanism. The kinetic parameters indicated that the chemical reaction between adsorbed COad and OHad species could be the rate limiting step.

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