Implanting oxophilic metal in PtRu nanowires for hydrogen oxidation catalysis.

ABSTRACT: Bimetallic PtRu are promising electrocatalysts for hydrogen oxidation reaction in anion exchange membrane fuel cell, where the activity and stability are still unsatisfying. Here, PtRu nanowires were implanted with a series of oxophilic metal atoms (named as i-M-PR), significantly enhancing alkaline hydrogen oxidation reaction (HOR) activity and stability. With the dual doping of In and Zn atoms, the i-ZnIn-PR/C shows mass activity of 10.2 A mg_Pt+Ru^-1 at 50 mV, largely surpassing that of commercial Pt/C (0.27 A mg_Pt^-1) and PtRu/C (1.24 A mg_Pt+Ru^-1). More importantly, the peak power density and specific power density are as high as 1.84 W cm^-2 and 18.4 W mg_Pt+Ru^-1 with a low loading (0.1 mg cm

SUBMITTER: Huang Z 

PROVIDER: S-EPMC10847104 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature