Kinetic study of oxygen reduction reaction and PEM fuel cell performance of Pt/TiO2-C electrocatalyst
作者： B. Ruiz-Camacho , J.H. Martínez-González , R.G. González-Huerta , M. Tufiño-Velázquez
DOI: 10.1016/J.IJHYDENE.2014.02.109
关键词:
摘要: Abstract The electrochemical activity and thermal stability of the Pt/TiO 2 -C were evaluated in oxygen reduction reaction (ORR) acid medium at different temperatures. platinum was selectively deposited onto TiO ( E bg = 2.3 eV) by photo-irradiation precursor (Pt 4+ →Pt 0 ). electrocatalyst prepared characterized XRD, TEM/EDS, cyclic lineal voltammetry techniques. TEM images indicated that nanoparticles -C. for ORR temperatures (298–343 K) is higher than Pt/C commercial sample (Pt-Etek). A more favorable apparent enthalpy activation greatly influenced addition oxide catalyst compare to Pt-Etek. Single H /O fuel cell performance results show an improvement power density with increase temperature.
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