Abstract
Herein, the pulse temperature is provided during the nucleation period of the nanoparticles to shorten the nucleation time for Pt-based nanoparticle growth. Herein, 3-nm-sized Pt-Ni alloy octahedral catalysts were prepared by pulse-like hydrothermal method. The influence of the pulse on nucleation is demonstrated by comparing the morphology obtained from the conditions of constant temperature and pulse temperature. It has been found that pulse temperature could decrease the nucleation time, and the final morphology of the nanoparticle is different due to the different growth temperatures and times. When used in oxygen reduction reaction, the octahedron Pt-Ni exhibited a 50 mV positive shift of the half-wave potential and the mass-specific activity and area-specific activity are 5 and 7 times higher than that of commercial 40% Pt/C at 0.9 V. Through this way, kinds of multiple alloy compounds could be composed with less time in the future.
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.
