Abstract
Developing efficient electrocatalysts based on inexpensive and environment protection materials for methanol oxidation reaction (MOR) is crucial to new generation renewable energy storage and conversion processes, but it remains a major challenge. In our current research, N-doped carbon nanotubes grafted on N-doped carbon nanosheets co-encapsulating cobalt and Mo2C nanoparticles (Co-Mo2C/NCNT@NCN) are designed and synthesized by simple mixing and one-step annealing approach. After depositing Pt nanoparticles, Pt/Co-Mo2C/NCNT@NCN exhibits superior catalytic activity and stability for MOR in acid medium; more precisely, it has a commendable mass activity of 842 mA/mgPt, which is 2.1 times of Pt/C-JM. And it is worth mentioning that its anti-CO poisoning ability and stability have also a visible improvement; the enhanced catalytic performance mainly benefits from the rich N doping, excellent structural features, and the synergistic effect of Co and Mo2C. Therefore, this study opens up a new direction for designing and developing a favorable active multicomponent catalyst for MOR.
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