Abstract
In this work, Functionalized Carbon nanotubes (FCNTs) supported hybrid catalysts including Pt, Fe and Ni nanoparticles were prepared and further used as an electrocatalytic electrode for Proton Exchange Membrane Fuel Cell (PEMFC) cathode. In this regard, various ratios of nitric acid/sulfuric acid were tested for functionalization of CNTs. The ethylene glycol reduction method was applied to deposit the hybrid electrocatalyst nanoparticles on FCNTs. It was revealed that the combination of FCNTs, as the support catalyst, with hybrid platinum and transition metals, accelerated the oxygen reduction reaction (ORR) by passing through the four-electron pathway which was due to the high crystallinity and aspect ratio, low defect density and unique electrical conductivity of CNTs and Pt-transition metals alloys. As a result, the power density profoundly enhanced (up to 237%) while the charge transfer resistance reduced, compared to Pt–C 10%wt commercial catalyst. This study demonstrated the excellent performance of FCNTs decorated Pt–Ni–Fe electrocatalyst can be considered as a good candidate for the future of the catalyst layer in PEMFC.
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.
