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WO 3 Nanoparticles Synthesized Through Ion Exchange Route as Pt Electrocatalyst Support for Alcohol Oxidation
Author(s) -
Yan Z.,
Xie J.,
Fang Y.,
Chen M.,
Wei X.,
Lü X.
Publication year - 2014
Publication title -
fuel cells
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.485
H-Index - 69
eISSN - 1615-6854
pISSN - 1615-6846
DOI - 10.1002/fuce.201200133
Subject(s) - electrocatalyst , materials science , electrochemistry , methanol , catalysis , nanoparticle , carbonization , chemical engineering , nanomaterials , nanocrystal , ion exchange , alcohol oxidation , oxide , inorganic chemistry , electrode , chemistry , nanotechnology , ion , organic chemistry , composite material , metallurgy , scanning electron microscope , engineering
Tungsten oxide (WO 3 ) nanocrystals with the diameter <5 nm supported on porous carbonized resin (denoted as C‐WO 3 ) are synthesized. The WO 3 precursors are dispersed at ion level through ion exchange route, then reduced to WO 3 nanocrystals. Pt nanoparticles are loaded on the porous C‐WO 3 matrix (denoted as Pt/C‐WO 3 ) and used as electrocatalyst in fuel cell for alcohol oxidation, in which WO 3 is found efficient promotion effect on Pt electrocatalyst in the electrochemical activity and stability. Thereinto, Pt/C‐WO 3 gives 1.63 times higher current densities than the commercial Pt/C (TKK) for methanol oxidation at the same Pt loadings. Moreover, Pt/C‐WO 3 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 WO 3 .