 A study on novel combined processes for preparation of high performance Pt–Co/C electrocatalyst for oxygen reduction in PEM fuel cellWiruyn Trongchuankij, Kunakorn Poochinda, Kejvalee Pruksathorn and Mali Hunsom Renewable Energy, 2010, vol. 35, issue 12, 2839-2843 Abstract: The preparation of a Pt–Co/C electrocatalyst for the oxygen reduction reaction in PEM fuel cells was achieved via a novel combined process of impregnation and seeding. The effect of seeding and non-seeding approaches on the morphologies and activities of the electrocatalyst was explored. The results indicated that the seeding or non-seeding approaches provided the similar results of Pt structure and phase composition in the Pt–Co/C electrocatalyst. However, the seeding approach provided a more uniform dispersion and smaller particle size of electrocatalyst compared with that of the non-seeding approach. Also, higher values of kinetic parameters including i0, E0, i0.9V and E10mA/cm2 were obtained in case of seeding electrocatalyst. Finally, the rotating disk electrode experimental results showed that the mechanism of oxygen reduction involved the four-electron pathway. Keywords: Seeding; PEM fuel cell; Four-electron pathway; Cell performance (search for similar items in EconPapers) Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:35:y:2010:i:12:p:2839-2843 DOI: 10.1016/j.renene.2010.05.007 Access Statistics for this article Renewable Energy is currently edited by Soteris A. Kalogirou and Paul Christodoulides More articles in Renewable Energy from Elsevier |
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