Abstract
Rutile TiO2 is used as a support for the PtAg nanoparticles, and the catalytic activity and stability of PtAg/TiO2 for the electrooxidation of methanol are investigated. The PtAg nanoparticles with a Pt:Ag atomic ratio of 1:1 are prepared by the chemical co-reduction of the precursors of Pt and Ag, and physical characterizations reveal that the PtAg nanoparticles are evenly dispersed on TiO2. PtAg/TiO2 shows significantly higher catalytic activity and stability than PtAg/C, Pt/TiO2 and Pt/C for methanol oxidation in both alkaline and acidic solutions, indicating that rutile TiO2 is superior to carbon black as supports and PtAg is superior to Pt in achieving high catalytic activity. Rutile TiO2 is also shown to be superior to anatase TiO2 as supports for the PtAg nanoparticles. The results of this study suggest high potential of rutile TiO2 as a support material for electrocatalysts.
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.
