Title of article
Platinum dispersed on silica nanoparticle as electrocatalyst for PEM fuel cell
Author/Authors
Seger، نويسنده , , Brian and Kongkanand، نويسنده , , Anusorn and Vinodgopal، نويسنده , , K. and Kamat، نويسنده , , Prashant V.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2008
Pages
7
From page
198
To page
204
Abstract
Colloidal silica has been employed as a support material to disperse Pt and develop Pt–SiO2 composites with electrocatalytic properties. The Pt–SiO2 particles of ratio 1:1 and 2:1 show superior performance towards oxygen reduction reaction (ORR) as these composite particles form an interconnected particle-network and maximize the available electrochemically active area. Upon increasing the Pt content we observe decreased activity as a result of aggregation of particles. The performance of Pt–SiO2 composite particles in H2-fuel cell are compared with Pt-black catalyst.
Keywords
Electrocatalyst , Fuel cell , oxygen reduction , Nanocomposite catalysts , silica , Oxide–metal nanoparticles
Journal title
Journal of Electroanalytical Chemistry
Serial Year
2008
Journal title
Journal of Electroanalytical Chemistry
Record number
1673554
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