PEREIRA, VIVIANE S.SILVA, JULIO C.M.OLIVEIRA NETO, ALMIRSPINACE, ESTEVAM V.2017-11-292017-11-29PEREIRA, VIVIANE S.; SILVA, JULIO C.M.; OLIVEIRA NETO, ALMIR; SPINACE, ESTEVAM V. Pt and PtRu nanoparticles supported on N-doped carbons as electrocatalysts for methanol electro-oxidation. In: BRAZILIAN MRS MEETING, 15th, September 25-29, 2016, Campinas, SP. <b>Abstract...</b> São Carlos, SP: Aptor Software, 2016. p. 1490-1490. Disponível em: http://repositorio.ipen.br/handle/123456789/28071.http://repositorio.ipen.br/handle/123456789/28071Methanol is a liquid transportation fuel that can be produced from fossil or renewable resources. Fuel cells employing methanol directly as fuel (Direct Methanol Fuel Cell – DMFC) are very attractive as power source for portable, mobile and stationary applications [1]. PtRu/C electrocatalyst has been considered the best electrocatalyst for methanol electro-oxidation, however, its performace is strongly dependent on the method of preparation and on the characteristics of the carbon support. N-doped carbons with different N contents (1, 2 and 5 wt%) were prepared by thermal treatment of carbon with urea at 800oC. Pt and PtRu nanoparticles were supported on N-doped carbons by coreduction of Pt(IV) and Ru(III) ions using an alcohol-reduction process [2]. The obtained materials were characterized by Energy Dispersive X-ray spectroscopy, X-ray diffraction, Transmission electron microscopy and Cyclic Voltammetry. Pt and PtRu nanoparticles supported on N-doped carbons showed superior performance for methanol electro-oxidation when compared to the materials supported on non-modified carbon and to Pt/C and PtRu/C commercial electrocatalysts. Pt/C and PtRu/C prepared with the carbon modified with 2.5 wt% of N content showed the best activities.1490-1490openAccesscarbondoped materialselectrocatalystsheat treatmentsmethanolnanoparticlesoxidationplatinumrutheniumtransmission electron microscopyvoltametryx-ray diffractionx-ray spectroscopyPt and PtRu nanoparticles supported on N-doped carbons as electrocatalysts for methanol electro-oxidationResumo de eventos científicoshttps://orcid.org/0000-0002-7011-8261https://orcid.org/0000-0002-9287-6071