Abstract
In this paper, one-dimensional (1D) TiO2 nanorods arrays (NRs) are adopted as Pt nanoparticles support for electrocatalytic methanol oxidation. We show that high aspect ratio 1D-TiO2 NRs not only own the advantages of excellent photogenerated carrier transport with low recombination rate but also serve to anchor the Pt nanoparticles for well-dispersing onto the surface of nanorods. The Pt-1D TiO2 NRs electrodes show improved activities toward electrocatalytic methanol oxidation when they exposed into the simulated solar light irradiation. Synergistic effects between electro- & photo-catalytic methanol oxidation as well as the efficient interfacial charger separation in Pt-1D TiO2 NRs electrode contribute to the enhanced electrocatalytic methanol oxidation activities. Our results suggest that 1D-TiO2 NRs can be used as promising photo-assisted Pt noble metal support in direct methanol fuel cell.
Published Version
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