| 초록 |
Catalysts for oxygen reduction reaction (ORR) are crucial in fuel cells. Nitrogen (N) and phosphorus (P) co-doped porous carbon (C) materials have been prepared as a non-precious metal catalyst. The resulting material was capable of charge transfer via the coordination bond of cobalt (Co) and EDTA. In addition, redistribution of charge occurred due to co-doping of the N and P, which is advantageous for the oxygen reduction reaction (ORR). The as-prepared N and P co-doped mesoporous carbon (NPMPC) was characterized by a high average porosity and a high specific surface area. Furthermore, the NPMPC had a positive effect on ORR by allowing triple phases (gas-liquid-solid) to coexist in a wide range. The electrocatalytic activity of NPMPC for ORR in alkaline media, which was investigated using rotating disk electrode (RDE) technology, was better than that of a platinum (Pt/C) catalyst. Overall, NPMPC showed high efficiency and improved performance for oxygen reduction reaction. |
