期刊
JOURNAL OF COLLOID AND INTERFACE SCIENCE
卷 583, 期 -, 页码 371-375出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2020.09.048
关键词
Single atom; Iron phosphide nanoparticles; Synergistic catalysis; Hollow carbon; Oxygen reduction reaction
资金
- National Natural Science Foundation of China [21675147, 21802003, 21974097]
- Jilin Provincial Science and Technology Development Program [20190201242JC]
- Science and Technology Bureau of Jiangmen [2019030102360012639]
This study successfully synthesized FeP@SA-Fe/HC-900 hybrid catalyst with high oxygen reduction reaction activity, showing superior performance compared to commercial Pt/C catalyst. The research provides a new approach to enhance the electrochemical catalytic performance of carbon composite materials through the synergistic effect of atomic-metal and metal nanoparticles.
Exploring highly active non-noble metal oxygen reduction reaction (ORR) catalysts and understanding the mechanism are very essential for future energy conversion and storage devices. Herein, we provide a novel method to produce FeP nanoparticles and single atom Fe co-doped porous hollow carbon hybrids (FeP@SA-Fe/HC) from iron metal-organic framework (NH2-MIL(Fe)), phytic acid and melamine. Interestingly, thanks for the co-existence of the atomic Fe and FeP nanoparticles, porous hollow microstructure, and heteroatom doping, the obtained FeP@SA-Fe/HC-900 hybrid shows very high ORR activity with a more positive half-wave potential of 0.843 V (vs. reversible hydrogen electrode) in 0.10 M KOH, comparing with the commercial 20 wt% Pt/C catalyst (0.807 V). Our methodology puts forwards a new sight to enhance the electrochemical catalytic performance of carbon composite materials through the synergistic effect of the atomic-metal and metal nanoparticles. (C) 2020 Elsevier Inc. All rights reserved.
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