Abstract
Pt–SnOx/C catalysts were prepared in a polyol process under Ar, sequential Ar and air, and air atmospheres in combination with a high temperature reduction treatment. The composition, structure, morphology and oxidation state of the prepared catalysts were characterized by Inductively Coupled Plasma-Atom Emission Spectroscopy, X-ray diffraction, scanning transmission electron microscopy and X-ray photoelectron spectroscopy. The electrochemical activities were evaluated by CO stripping voltammetry and single cell test in combination with in situ IR reflection absorption spectroscopy (IRRAS). The polyol-synthesized Pt–SnOx/C catalysts prepared under different atmospheres had a similar bulk composition, particle size and lattice parameter, however, the Pt–SnOx/C catalyst prepared under Ar atmosphere possessed a greater proportion of Sn(II) species than the other Pt–SnOx/C catalysts. Electrochemical and in situ IRRAS measurements indicated that the Pt–SnOx/C catalyst under Ar atmosphere had the greatest CO tolerance in proton electrolyte fuel cell among the Pt–SnOx/C catalysts.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
