Electrooxidation of mixed ethanol and methanol solutions on PtSn/C electrocatalysts prepared by the polymeric precursor method
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Journal of the Brazilian Chemical Society
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Different mass ratio proportions of PtSn (m/m) electrocatalysts with 20% metal loading
on a carbon support were prepared for use in ethanol:methanol solutions oxidation reactions.
PtSn/C (3:1) (91% alloy degree, lattice parameter of 0.399 nm and mean crystallite size 4.8 nm)
presented the best activity for oxidation of mixed solutions. The highest normalized current
(ethanol:methanol 80:20) was 4.2 mA mgPt
-1 (measured after 1800 seconds at 0.5 V). Therefore,
the PtSn/C (3:1) electrocatalyst with an atomic ratio of 65:35 enhanced both the electronic effect
and bifunctional mechanism in (ethanol:methanol 80:20), which resulted in the formation of CO2
at low potentials, as well as the highest amount of by-products than ethanol and methanol.
Como referenciar
AMORIM, ALINE; PARREIRA, LUANNA S.; SILVA, JULIO C.M.; SANTOS, MAURO C. dos. Electrooxidation of mixed ethanol and methanol solutions on PtSn/C electrocatalysts prepared by the polymeric precursor method. Journal of the Brazilian Chemical Society, v. 28, n. 6, p. 1091-1097, 2017. DOI: 10.21577/0103-5053.20160266. Disponível em: http://repositorio.ipen.br/handle/123456789/28483. Acesso em: 30 Dec 2025.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.