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- Title
WO<sub>3</sub> Nanoparticles Synthesized Through Ion Exchange Route as Pt Electrocatalyst Support for Alcohol Oxidation.
- Authors
Yan, Z.; Xie, J.; Fang, Y.; Chen, M.; Wei, X.; Lü, X.
- Abstract
Tungsten oxide (WO3) nanocrystals with the diameter <5 nm supported on porous carbonized resin (denoted as C-WO3) are synthesized. The WO3 precursors are dispersed at ion level through ion exchange route, then reduced to WO3 nanocrystals. Pt nanoparticles are loaded on the porous C-WO3 matrix (denoted as Pt/C-WO3) and used as electrocatalyst in fuel cell for alcohol oxidation, in which WO3 is found efficient promotion effect on Pt electrocatalyst in the electrochemical activity and stability. Thereinto, Pt/C-WO3 gives 1.63 times higher current densities than the commercial Pt/C (TKK) for methanol oxidation at the same Pt loadings. Moreover, Pt/C-WO3 electrocatalyst shows excellent properties in mass transfer than Pt/C (TKK). The present method can be readily scaled up for the production of other nanomaterials as well as WO3.
- Subjects
TUNGSTEN oxides; NANOPARTICLES; EXCHANGE reactions; MASS transfer; ALCOHOLS (Chemical class); ALCOHOL oxidase; ELECTROCATALYSTS
- Publication
Fuel Cells, 2014, Vol 14, Issue 2, p291
- ISSN
1615-6846
- Publication type
Article
- DOI
10.1002/fuce.201200133