Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6453699 | Applied Catalysis B: Environmental | 2017 | 10 Pages |
â¢Pt+SnO2/C electrocatalyst containing Pt nanoparticles with preferential (100) orientation.â¢KBr used as shape directing agent.â¢No organic compounds were used as stabilizers and/or shape directing agents.â¢Superior power densities and CO2 selectivity for Direct Ethanol Fuel Cell.
The synthesis of Pt + SnO2/C electrocatalyst containing cubic Pt nanoparticles with preferential (100) orientation was performed by an alcohol-reduction process using KBr as a shape directing agent. The order of addition of the Pt and Sn precursors and KBr was crucial to obtain cubic Pt particles and a SnO2 phase with small particle sizes highly dispersed on the carbon support. Electrochemical and DEFC experiments showed that Pt + SnO2/C electrocatalyst containing Pt nanoparticles with preferential (100) orientation provided superior activity for EOR, power densities and CO2 selectivity compared to Pt + SnO2/C electrocatalyst containing Pt polycrystalline.
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