Mamdouh Ahmed Abdel Rahim

Citation:

Rahim, A. M. A., A. R. M. Hameed, and M. W. Khalil, "Nickel as a catalyst for the electro-oxidation of methanol in alkaline medium", Journal of Power Sources , vol. 134, pp. 160–169, 2004.

Abstract:

The use of Ni as a catalyst for the electro-oxidation of methanol in alkaline medium was studied by cyclic voltammetry. It was found that only Ni dispersed on graphite shows a catalytic activity towards methanol oxidation but massive Ni does not. Ni was dispersed on graphite by the electro-deposition from acidic NiSO4 solution using potentiostatic and galvanostatic techniques. The catalytic activity of the C/Ni electrodes towards methanol oxidation was found to vary with the amount of electro-deposited Ni. The dependence of the oxidation current on methanol concentration and scan rate was discussed. It was concluded from the electro-chemical measurements and SEM analysis that methanol oxidation starts as Ni-oxide is formed on the electrode surface.