Journal
JOURNAL OF PHYSICAL CHEMISTRY C
Volume 115, Issue 7, Pages 3043-3056Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jp109239c
Keywords
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Funding
- Department of Energy [DE-PS02-08ER08-04]
- Div Of Chem, Bioeng, Env, & Transp Sys
- Directorate For Engineering [0923510] Funding Source: National Science Foundation
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Platinum supported on a mixed metal oxide, NbRuyOz (8Nb:1Ru), was evaluated as an electrocatalyst for the ethanol oxidation reaction (EOR) in 0.1 M HClO4 and 1 M KOH. The support was synthesized from a liquid precursor solution of metal chlorides that was aerosolized and thermally decomposed into a powder via the spray pyrolysis (SP) process. Two samples were of primary interest: 30%Pt deposited onto the support by dry impregnation and 60%Pt as part of the precursor solution that underwent in situ SP Pt dispersion. TEM, SEM, and XRD were used to confirm morphology and deposition of Pt. XPS and XAS studies confirmed elemental distribution and oxidation state of Pt catalyst. In situ IRRAS studies in 0.1 M HClO4 show that these electrocatalysts are capable of facilitating the complete oxidation pathway of EOR, involving scission of the C-C bond and CO oxidation.
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