Title of article
A polyoxometalate-deposited Pt/CNT electrocatalyst via chemical synthesis for methanol electrooxidation
Author/Authors
Min Ho Seo، نويسنده , , Sung Mook Choi، نويسنده , , Hyung Ju Kim، نويسنده , , Jae Hong Kim، نويسنده , , Beong Ki Cho، نويسنده , , Won Bae Kim، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2008
Pages
6
From page
81
To page
86
Abstract
Polyoxometalate anion PMo12O403− (POM) is chemically impregnated into a Pt-supported carbon nanotubes (Pt/CNTs) catalyst that is prepared via a colloidal method. The POM-impregnated Pt/CNTs catalyst system (Pt/CNTs-POM) shows at least 50% higher catalytic mass activity with improved stability for the electrooxidation of methanol than Pt/CNTs or POM-impregnated Pt/C (Pt/C-POM) catalyst systems. The enhancement in electrochemical performance of the Pt/CNTs-POM catalyst system can be attributed to the combined beneficial effects of improved electrical conductivity due to the CNTs support, highly dispersed Pt nanoparticles on the CNTs, and increased oxidation power of the polyoxometalate that can assist oxidative removal of reaction intermediates adsorbed on the Pt catalyst surface.
Keywords
Platinum catalyst , Carbon nanotubes , Direct methanol fuel cell , Enhanced activity , Methanol oxidation , Polyoxometalate
Journal title
Journal of Power Sources
Serial Year
2008
Journal title
Journal of Power Sources
Record number
442674
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