Oxidation of Aqueous Phosphorous Acid Electrolyte in Contact with Pt Studied by X-ray Photoemission Spectroscopy.

ABSTRACT: The oxidation of the aqueous H₃PO₃ in contact with Pt was investigated for a fundamental understanding of the Pt/aqueous H₃PO₃ interaction with the goal of providing a comprehensive basis for the further optimization of high-temperature polymer electrolyte membrane fuel cells (HT-PEMFCs). Ion-exchange chromatography (IEC) experiments suggested that in ambient conditions, Pt catalyzes H₃PO₃ oxidation to H₃PO₄ with H₂O. X-ray photoelectron spectroscopy (XPS) on different substrates, including Au and Pt, previously treated in H₃PO₃ solutions was conducted to determine the catalytic abilities of selected metals toward H₃PO₃ oxidation. In situ amb

SUBMITTER: Wibowo RE 

PROVIDER: S-EPMC10636727 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature