Abstract
The high-area carbon supports that are often used for direct methanol fuel cell electrocatalysts (nanoparticles consisting of platinum, ruthenium and other metals) are being targeted for replacement with diamond in order to take advantage of the superior stability and chemical modifiability of diamond. As a preliminary study, we have examined the electrochemical behavior of boron-doped diamond (BDD) films in 0.5 M H 2SO 4 using cyclic voltammetry and have also sequentially electrodeposited platinum, and ruthenium by potential cycling in the aqueous solutions of the respective metals between 0.00 and 1.50 V vs. Ag/AgCl. The catalyst composites, i.e., Pt and Pt–Ru, deposited on BDD film substrates, were tested for methanol oxidation. The modified diamond surfaces were also characterized by SEM/EDS, XPS, and AFM.
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.
