GERALDES, ADRIANA N.SILVA, DIONISIO F.SILVA, JULIO C.M.SOUZA, RODRIGO F.B.SPINACE, ESTEVAM V.OLIVEIRA NETO, ALMIRLINARDI, MARCELOSANTOS, MAURO C.2014-08-182014-08-182014GERALDES, ADRIANA N.; SILVA, DIONISIO F.; SILVA, JULIO C.M.; SOUZA, RODRIGO F.B.; SPINACE, ESTEVAM V.; OLIVEIRA NETO, ALMIR; LINARDI, MARCELO; SANTOS, MAURO C. Glycerol electrooxidation in alkaline medium using Pd/C, Au/C and PdAu/C electrocatalysts prepared by electron beam irradiation. <b>Journal of the Brazilian Chemical Society</b>, v. 25, n. 5, p. 831-840, 2014. DOI: <a href="https://dx.doi.org/10.5935/0103-5053.20140044">10.5935/0103-5053.20140044</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/8954.0103-5053http://repositorio.ipen.br/handle/123456789/8954Pd/C, Au/C and PdAu/C electrocatalysts with different atomic ratios prepared using electron beam irradiation were tested for glycerol electrooxidation in single alkaline direct glycerol fuel cell (ADGFC). X-ray diffractograms (XRD) of PdAu/C electrocatalysts showed the presence of Pd (fcc) and Au (fcc) phases. Cyclic voltammetry (CV) and chronoamperometry showed that PdAu/C electrocatalyst with Pd:Au atomic ratio of 50:50 demonstrated superior activity for glycerol electrooxidation, at room temperature. In situ Fourier transform infrared spectroscopy by attenuated total reflectance (ATR-FTIR) experiments were performed for the electrocatalysts, identifying oxalate, glycerate ion, 1,3-dihydroxy-2-propanone, glyceraldehyde and glycolate as products of glycerol electrooxidation. Experiments with single ADGFC were carried out from 50 to 90 °C, using Pd/C electrocatalyst; the best performance was obtained at 80 °C.831-840openAccesselectrocatalystspalladiumgoldcarbonelectron beamsoxidationglycerolfuel cellsvoltametryfourier transform spectrometersinfrared spectraArtigo de periódico52510.5935/0103-5053.20140044https://orcid.org/0000-0003-0105-6519https://orcid.org/0000-0002-9287-6071https://orcid.org/0000-0002-7011-8261