Bimetallic Fe and Co supported on the N‐doped mesoporous carbon frameworks with enhanced oxygen reduction reaction performance via high‐gravity technology

• DOI: 10.1002/jccs.202000572
• Publication Date: 2021-02-11T01:15:22Z
• Authors: Guangping Wu; Jinhua Shi; Hongbo Dong; Yao Nie; Yanzhong Wang; Yanjun Chen; Dan Li; Yaoyao Linghu; Zhenfeng He; Chao Wang; Li Guo
• Keywords: Bimetallic strip; Chronoamperometry; Carbon fibers

Abstract The exploitation of high‐efficiency, inexpensive, as well durable electrocatalysts for the oxygen reduction reaction (ORR) is vital importance commercialization fuel cells. In this study, we prepared an efficient non‐precious ORR electrocatalyst via high‐gravity technology. results physical characterization revealed that Fe atoms could be uniformly dispersed on Fe/Co/N‐MCF catalyst X‐ray photoelectron spectroscopy demonstrated can combined with N from ZIF‐67 to form Fe‐N x structures, which has already been confirmed acted validly active sites. electrochemical testing showed obtained high gravity technology expressed a 24 mV positive than commercial Pt/C in terms half‐wave potential. Moreover, exhibited excellent anti‐ethanol activity and durability, its current density only decays 2.6%, far lower 23.3% after 10,000 s chronoamperometry aging test.