Chemical Engineering Commons^™

Mesoporous Tin Oxide As An Oxidation-Resistant Catalyst Support For Proton Exchange Membrane Fuel Cells, Peng Zhang, Sheng-Yang Huang, Branko N. Popov

Faculty Publications

Mesoporous catalyst support based on tin oxide (SnO₂) is synthesized with high surface area of 205 m² g⁻¹ and with narrow pore size distribution. Modified polyol method is used to deposit platinum on SnO₂. The physical properties of the support and the SnO₂-supported Pt catalyst (Pt/SnO₂) are characterized by using the Brunauer, Emmett, and Teller method, X-ray diffraction, and transmission electron microscopy. The electrochemical stability and durability of the Pt/SnO₂ catalyst are investigated by the accelerated stress tests proposed by the U.S. Department of Energy. Pt/SnO₂ catalyst exhibits …