TY - JOUR
T1 - Atomic Fe & FeP nanoparticles synergistically facilitate oxygen reduction reaction of hollow carbon hybrids
AU - Yang, Wenxiu
AU - Liu, Xiangjian
AU - Lv, Huan
AU - Jia, Jianbo
N1 - Publisher Copyright:
© 2020 Elsevier Inc.
PY - 2021/2/1
Y1 - 2021/2/1
N2 - 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.
AB - 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.
KW - Hollow carbon
KW - Iron phosphide nanoparticles
KW - Oxygen reduction reaction
KW - Single atom
KW - Synergistic catalysis
UR - http://www.scopus.com/inward/record.url?scp=85091912429&partnerID=8YFLogxK
U2 - 10.1016/j.jcis.2020.09.048
DO - 10.1016/j.jcis.2020.09.048
M3 - Article
C2 - 33011406
AN - SCOPUS:85091912429
SN - 0021-9797
VL - 583
SP - 371
EP - 375
JO - Journal of Colloid and Interface Science
JF - Journal of Colloid and Interface Science
ER -