SILVA, DIONISIO F.GERALDES, ADRIANA N.OLIVEIRA NETO, ALMIRPINO, EDDY S.LINARDI, MARCELOSPINACE, ESTEVAM V.MACEDO, WALDEMAR A.A.ARDISSON, JOSÉ D.2014-07-312014-07-312014-07-312014-07-312010SILVA, DIONISIO F.; GERALDES, ADRIANA N.; OLIVEIRA NETO, ALMIR; PINO, EDDY S.; LINARDI, MARCELO; SPINACE, ESTEVAM V.; MACEDO, WALDEMAR A.A.; ARDISSON, JOSÉ D. Preparation of PtSnO2/C electrocatalysts using electron beam irradiation. <b>Materials Science and Engineering, B</b>, v. 175, p. 261-265, 2010. DOI: <a href="https://dx.doi.org/10.1016/j.mseb.2010.08.002">10.1016/j.mseb.2010.08.002</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/8135.0921-5107http://repositorio.ipen.br/handle/123456789/8135PtSnO2/C electrocatalysts with Pt:Sn atomic ratios of 75:25, 50:50 and 25:75 were prepared in water/2- propanol using electron beam irradiation. The materials were characterized by energy-dispersive X-ray analysis, X-ray diffraction, Mössbauer spectroscopy and transmission electron microscopy. The electrooxidation of ethanol was studied by chronoamperometry at room temperature and on direct ethanol fuel cell (DEFC) at 100 ◦C. The X-ray diffraction and Mössbauer measurements of the PtSnO2/C electrocatalysts showed typical face-centered cubic (fcc) structure of platinum and the presence of a SnO2 phase (cassiterite). The PtSnO2/C electrocatalysts were active for ethanol electro-oxidation and the material with Pt:Sn atomic ratio of 50:50 showed the best performance.261-265openAccessamperometryelectrocatalystselectron beamsethanolfcc latticesoxidationplatinum alloyspropanolstin alloystin oxidesvoltametryx-ray diffractionArtigo de periódico17510.1016/j.mseb.2010.08.002https://orcid.org/0000-0003-0105-6519https://orcid.org/0000-0002-7011-8261https://orcid.org/0000-0002-9287-6071