Metal-Free B, N co-Doped Hierarchical Porous Carbon Electrocatalyst with an Excellent O₂ Reduction Performance.

ABSTRACT: Fuel cells have attracted increasing attention due to their low cost, high energy density, low environmental pollution, and abundant raw materials. Oxygen reduction reaction (ORR) is a core technology of fuel cells, and the development of new electrocatalysts with high ORR performance is highly desirable. Herein, we synthesize a series of B, N co-doped hierarchical porous carbons using a soft template method with the integration of self-assembly, calcination and etching. The obtained materials exhibit hierarchical porous structures, controllable pore distribution, partial graphite structures, and B, N co-doping. They can function as the cost-effective and metal-free electrocatalysts, facilitating the diffusion of electrolyte ions and the improvement of ORR performance. Especially, the B, N

SUBMITTER: Wang F 

PROVIDER: S-EPMC8312485 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature