High-efficient Pt catalyst immobilized on hierarchical N-doped carbon nanocages for preferential oxidation of CO in H2

Abstract

The N-doped carbon nanocages-supported Pt nanoparticle catalyst exhibits high activity and stability for preferential oxidation of CO in H₂ over a wide temperature range of 80~180 ℃, which is attributed to the modulated electronic structure of Pt and high accessibility of active sites endowed by hierarchical N-doped carbon nanocages.