SILVA, DIONISIO F.OLIVEIRA NETO, ALMIRPINO, EDDY S.LINARDI, MARCELOSPINACE, ESTEVAM V.2014-07-152014-07-302014-07-152014-07-302010SILVA, DIONISIO F.; OLIVEIRA NETO, ALMIR; PINO, EDDY S.; LINARDI, MARCELO; SPINACE, ESTEVAM V. Preparation of PtSn/C electrocatalysts using electron beam irradiation. <b>Studies in Surface Science and Catalysis</b>, v. 175, n. 1, p. 555-558, 2010. DOI: <a href="https://dx.doi.org/10.1016/S0167-2991(10)75107-7">10.1016/S0167-2991(10)75107-7</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/4691.0167-2991http://repositorio.ipen.br/handle/123456789/4691PtSn/C electrocatalyts are claimed to be active electrocatalysts for ethanol electrooxidation and their performances depends greatly on the preparation procedure and Pt:Sn atomic ratio. In this work, PtSn/C electrocatalysts with Pt:Sn atomic ratios of 9:1, 3:1, 1:1 and 1:3 were prepared in water/ethylene glycol using electron beam irradiation. The obtained materials were characterized by EDX and XRD and tested for ethanol electro-oxidation in acid medium using chronoamperometry. X-ray diffractograms of PtSn/C electrocatalysts showed typical face-centered cubic (fcc) structure of Pt with average crystallite size of 2 nm and the presence of a SnO2 phase (cassiterite). PtSn/C electrocatalysts prepared with Pt:Sn atomic ratios of 9:1 and 3:1 were more active for ethanol electro-oxidation than commercial PtSn/C BASF electrocatalyst.555-558openAccesselectrocatalystsplatinumtincarbonelectron beamsirradiationethanoloxidationfuel cellsdirect ethanol fuel cellsx-ray diffractionamperometryArtigo de periódico117510.1016/S0167-2991(10)75107-7https://orcid.org/0000-0003-0105-6519https://orcid.org/0000-0002-7011-8261https://orcid.org/0000-0002-9287-6071