Synthesis of Pt nanoparticles with preferential (100) orientation directly on the carbon support for Direct Ethanol Fuel Cell

Autor(es)

Antoniassi, R. M. ; Otubo, L. ; Vaz, J. M. ; Oliveira Neto, A. ; Spinace, E. V.

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF CATALYSIS; v. 342, p. 67-74, OCT 2016.
• Citações Web of Science: 12

Resumo

The synthesis of Pt nanoparticles with preferential (100) orientation directly supported on carbon was done by an alcohol-reduction process using KBr as a shape directing agent. The synthesis conditions were varied and the obtained materials were characterized by transmission electron microscopy and cyclic voltammetry. The order of addition of the Pt precursor and KBr was crucial to obtain cubic Pt nanoparticles with small particle size highly dispersed on the carbon support. DEFC experiments showed that Pt nanoparticles with preferential (100) orientation supported on carbon provided superior power densities and CO2 selectivity compared to supported polycrystalline Pt nanoparticles. (C) 2016 Elsevier Inc. All rights reserved. (AU)

• Processo FAPESP: 14/09087-4 - Estudos sobre o uso do bioetanol em células a combustível do tipo PEMFC e SOFC
• Beneficiário: Marcelo Linardi
• Modalidade de apoio: Auxílio à Pesquisa - Temático