Catalytic enhancement of formic acid electro-oxidation through surface modifications with gold on supported Pt nanoparticles
作者： Paula S. Cappellari , Angélica M. Baena-Moncada , Rusbel Coneo-Rodríguez , M. Sergio Moreno , Cesar A. Barbero
DOI: 10.1016/J.IJHYDENE.2018.11.138
关键词:
摘要: Abstract The Formic Acid Electro-oxidation (FAEO) on Pt/Au Nanoparticles (PtAu NP) supported Hierarchical Porous Carbon (HPC), was studied by cyclic voltammetry and chronoamperometry. HPC-Pt nanoparticles were surface modified Au spontaneous deposits. morphological compositional characterization performed Scanning Electron Microscopy (SEM) coupled with Dispersive Spectroscopy (EDS). A significant increase of the current densities for FAEO in potential region 0.1–0.75 VRHE observed HPC-PtAu catalysts. comparison electrodes results show that atoms presence Pt is a key factor to improve the catalysts performance. Based our results, clear change mechanism catalysts respect evidenced.
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