Porous Pt₃Ni with enhanced activity and durability towards oxygen reduction reaction.

ABSTRACT: The size of nanocrystals (NCs) is regarded as one of the vital factors determining their electrochemical performance. To achieve high electrochemical activity and durability at the same time still remains a big challenge. This work has demonstrated the successful synthesis of Pt₃Ni nanocrystals of large size with porous characteristics (PNC-Pt₃Ni). The mass and specific activity of the as-prepared catalyst are 6 and 6.6 times more than those of commercial Pt/C at 0.9 volts versus the reversible hydrogen electrode (RHE), respectively. More importantly, PNC-Pt₃Ni prevails against a durability test (23.7% loss of mass activity after 10 000 potential cycling) with little change to the porous morphology under harsh experimental conditions. Density functio

SUBMITTER: Mi S 

PROVIDER: S-EPMC9080043 | biostudies-literature | 2018 Apr

REPOSITORIES: biostudies-literature