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Preparation and characterization of Pt/Sfmcmb electrocatalysts
KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Heat and Power Technology.
2005 (English)In: Proc. Eur. Fuel Cell Technol. Applic. Conf. Book Abstr., 2005Conference paper (Refereed)
Abstract [en]

Super fine mesocarbon microbead powders (SFMCMBs) as the new supports for platinum electrocatalysts were first investigated. The Pt/SFMCMB electrocatalysts were prepared by an impregnation-reduction method, with hexachloroplatinic acid as the platinum precursor and formaldehyde as reducing agent. The catalysts were characterized with X-ray diffraction (XRD), field emission gun transmission electron microscope (TEM) and cyclic voltanumetry (CV). TEM photos showed the platinum particles were dispersed uniformly on the surface of SFMCMBs where the average platinum particle size were 4-6 nm and there existed a little aggregation of platinum particles in the Pt/SFMCMB catalysts. The XRD patterns showed the existence of the platinum on the supports. The acute peak corresponding to diffraction of graphitic structure indicate that SFMCMBs have good electric-conducting performance. The electrochemical analysis proved that SFMCMBs are excellent candidates to be used as the support of platinum electrocatalyst for methanol electrochemical oxidation as the potential catalyst candidate for direct methanol fuel cells (DMFCs).

Place, publisher, year, edition, pages
, Proceedings of the 1st European Fuel Cell Technology and Applications Conference 2005 - Book of Abstracts, 2005
Keyword [en]
Direct methanol fuel cells (DMFCs), Electrocatalysts, Field emission, Gun transmission, Super fine mesocarbon microbead powders (SFMCMBs), Catalysts, Cyclic voltammetry, Formaldehyde, Impregnation, Methanol, Reduction, Transmission electron microscopy, X ray diffraction analysis, Platinum compounds
National Category
Energy Engineering
URN: urn:nbn:se:kth:diva-156517ScopusID: 2-s2.0-33646588635ISBN: 0791842096ISBN: 9780791842096OAI: diva2:767284
1st European Fuel Cell Technology and Applications Conference 2005, EFC2005, 14-16 December 2005, Rome, Italy

QC 20141201

Available from: 2014-12-01 Created: 2014-11-28 Last updated: 2014-12-01Bibliographically approved

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