Abstract
Design and synthesis of oxygen reduction reaction (ORR) catalysts with both high activity and durability is a challenging task for the novel energy systems. Here we report a very promising ORR catalyst composed of strongly coupled platinum nanotubes and nitrogen-doped graphene (Pt NTs/NG), which was synthesized by in-situ galvanic replacement reaction. The newly developed catalyst shows ultrahigh activity and durability towards ORR in acidic medium. X-ray photoelectron spectroscopy, high-resolution transmission electron microscopy together with electrochemical analyses indicated that the greatly enhanced performance is due to the strong interaction between platinum and nitrogen-doped graphene support. This hybrid catalyst system is of great potential for application in proton exchange membrane fuel cell.
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.
