Abstract

Pt-based alloys have garnered significant attention due to its high electro-catalytic activity and stability. In this study, CeO2 nanoparticles were uniformly loaded onto carbon nanotube. Pt-Pd alloy particles were electrodeposited onto CeO2 nanoparticles to form Pt-Pd@CeO2/carbon nanotubes composites (Pt-Pd@CeO2/CNTs). Performance characterization results showed that Pt1Pd1.8@CeO2/CNTs electrocatalyst exhibited outstanding mass activity (2521 mA·mg Pt+Pd−1) for MOR, which was 7.9 times higher than that of Pt/C catalyst. The synergistic effect of Pt-Pd substantially enhanced the activity and the active oxygen-containing substances of CeO2 effectively improved the anti-CO poisoning ability. This work has provided a new pathway for developing high-performance catalytic catalysts for MOR.

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