High performance of phosphorus and sulfur co-doped oxygen reduction reaction catalysts derived from daylily

Abstract

In this paper, the oxygen reduction reaction (ORR) catalyst is synthesized by daylily that needs to absorb phosphorus-containing and sulfur-containing fertilizers during the growth process. Excellent phosphorus- and sulfur-containing porous carbon materials derived from daylily were prepared by carbonization at different temperatures. From the analysis of the experimental results, it was concluded that D900-3 derived from daylily by two rapid carbonization methods had the best catalytic effect. Compared with the commercial Pt/C (20 wt%), the difference in half-peak potential was only 20 mV. This paper not only enriches non-Pt-based ORR catalysts, but also provides a new way of phosphorus-sulfur co-doping.