PdAu/C electrocatalysts as anodes for direct formate Fuel Cell
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Electrocatalysis
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PdAu/C electrocatalysts in different atomic ratios
(90:10, 80:20, 70:30, and 50:50) supported on Vulcan XC72
carbon were evaluated toward formate oxidation in alkaline
media. The materials were prepared by the borohydride process. X-ray diffraction (XRD) patterns of PdAu materials
showed peak characteristic of Pd and Au face-centered-cubic
(fcc) structures while transmission electron micrographs
(TEM) showed the nanoparticles with particle size between
4 and 10 nm for all electrocatalysts. Experiments considering
single cell suggested the PdAu/C (90:10) and PdAu/C (80:20)
as promisors for formate oxidation. The best result obtained
was attributed to the presence of Au in small quantities that
contributes to the formate adsorption.
Como referenciar
SILVA, SIRLANE G. da; SILVA, JULIO C.M.; BUZZO, GUILHERME S.; SPINACE, ESTEVAM V.; OLIVEIRA NETO, ALMIR; ASSUMPCAO, MONICA H.M.T. PdAu/C electrocatalysts as anodes for direct formate Fuel Cell. Electrocatalysis, v. 6, p. 442-446, 2015. DOI: 10.1007/s12678-015-0262-1. Disponível em: http://repositorio.ipen.br/handle/123456789/25409. Acesso em: 30 Dec 2025.
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