Abstract
Well-defined PtNi alloy nanoflowers supported on multi-walled carbon nanotubes (PtNi-H/MWCNTs) are successfully synthesized through a novel and potentially general one-pot reaction that exploits an in situ sacrificial template. The detailed morphology, composition, and structure of the PtNi alloy nanoflowers are investigated by transmission electron microscopy, energy-dispersive X-ray spectroscopy, nitrogen adsorption–desorption isotherms and X-ray diffraction. The results demonstrate that the PtNi-H/MWCNTs are highly porous. The electrocatalytic activity and stability of the PtNi-H/MWCNTs for the oxygen reduction reaction (ORR) are investigated by rotating disk electrode voltammetry in 0.1 mol L−1 HClO4 solution. The electrochemical tests indicated that PtNi-H/MWCNTs exhibited superior ORR activity along with satisfactory stability and methanol-tolerance under acidic conditions, which made them promising electrocatalysts.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: 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.