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    Artigo IPEN-doc 13026
    Preparation of PtSn/C and PtSnNi/C electrocatalysts using the alcohol-reduction process
    2008 - SPINACE, ESTEVAM V.; FARIAS, LUCIANA A.; LINARDI, MARCELO; OLIVEIRA NETO, ALMIR
    PtSn/C electrocatalyst with Pt:Sn molar ratio of 50:50 and PtSnNi/C electrocatalyst with a Pt:Sn:Ni molar ratio of 50:40:10 were prepared by the alcohol-reduction process using ethylene glycol as solvent and reducing agent. The electrocatalysts were characterized by EDX, XRD, TEM and cyclic voltammetry. The electro-oxidation of ethylene glycol was studied by cyclic voltammetry and chronoamperometry using the thin porous coating technique. PtSnNi/C electrocatalyst showed a superior performance compared to PtSn/C electrocatalysts in the potential range of interest for direct ethylene glycol fuel cell.