Year-end Sale % OFF 
Abstract
Pt/C catalyst (carbon supported Pt nanoparticles) is synthesized through a microwave-assisted polyol process. Moreover, it is further employed as the starting material to prepare the Pt@Au/C catalyst (carbon supported Ptcore–Aushell nanoparticles) by a heteroepitaxial growth method using glucose as a reducing agent. The research results indicate that the slow reduction of the Au precursor caused by glucose successfully induces the Au atoms to grow around the Pt nanoparticles in the Pt/C catalyst to form the Au shell, whose structure transforms gradually from the Pt to Au fcc structure during the course of its growth. Moreover, the Au shell of the Ptcore–Aushell nanoparticles retains the Pt fcc structure when the theoretical atomic ratio between Au and Pt atoms (RAu/Pt) in the catalyst is less than 0.2. Furthermore, the Au shell with the Pt fcc structure in the Pt@Au/C catalysts (RAu/Pt ≤ 0.2) simultaneously bestows on the catalysts high methanol electrooxidation activity, excellent CO tolerance, and satisfactory performance for CO electrooxidation.
Published Version
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.
