초록 |
Sustainable and available air cathode electrocatalysts are of importance for energy conversion/storage devices including fuel cells and metal−air batteries. In this study, porous S,N-co-doped carbon materials are produced via pyrolysis of bamboo and thiourea and exhibit adequate micro/mesoporosity and sufficient active site. Therefore, the S,N-co-doped bamboo carbons (SNBCs) present high activities comparable to those of commercial Pt/C catalysts. In single cell test of anion exchange membrane fuel cells and Zn−air batteries, SNBCs exhibit high performances, attributed to their intrinsic activities as well as well-developed secondary pore structure in the catalyst layer. Thus, this work demonstrates a green strategy for the design of high performance and sustainable ORR catalysts for practical applications. |