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Please use this identifier to cite or link to this item: http://hdl.handle.net/10204/5613

Title: Methanol electro-oxidation on Pt-Ru-P/C and Pt-Ru-P/MWCNT in acidic medium
Authors: Modibedi, M
Masombuka, T
Hietkamp, S
Mathe, M
Keywords: Hypophosphite
PtRuP nanoparticle
Multi-walled carbon nanotubes
MWCNT
Methanol electro-oxidation
Sodium citrate
Fuel cells
Issue Date: Jun-2009
Publisher: The European Fuel Cell Forum (EFCF)
Citation: Modibedi, M, Masombuka, T, Hietkamp, S and Mathe, M. Methanol electro-oxidation on Pt-Ru-P/C and Pt-Ru-P/MWCNT in acidic medium. European Fuel Cell Forum, Lucerne, Switzerland, 29 June – 2 July 2009
Series/Report no.: Workflow;3017
Abstract: Pt-Ru-P was prepared by the chemical reduction method using sodium hypophoshite as a reducing agent on Vulcan XC 72 and multi-walled carbon nano-tubes (MWCNTs). Sodium citrate was added as the stabilizer during electro-catalyst preparation. The electro-catalytic activity towards methanol oxidation in acidic medium was studied by cyclic voltammetry and linear sweep voltammetry. Pt-Ru-P/MWCNT showed excellent activity compared to that of Pt-Ru-P/C. This may be attributed to the effectiveness of the MWCNTs acting as good catalyst support material. The particle size of both electro-catalysts obtained with the transmission scanning electron microscopy (TEM) ranged between 2-4nm desirable for the direct methanol fuel cells.
Description: European Fuel Cell Forum, Lucerne, Switzerland, 29 June – 2 July 2009
URI: http://hdl.handle.net/10204/5613
Appears in Collections:General science, engineering & technology

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