N-doped carbon modified Pt/CNTs synthesized by atomic layer deposition with enhanced activity and stability for methanol electrooxidation

Uniform polyimide films are deposited on the outer face of a Pt/CNTs catalyst by atomic layer deposition. After pyrolysis, polyimide films are converted to porous N-doped carbon films. By precisely adjusting the thickness of the polyimide films, the optimized 50NC-Pt/CNTs catalyst shows 1.7-fold enhancement in activity in the methanol electrooxidation reaction.