Journal
APPLIED CATALYSIS B-ENVIRONMENTAL
Volume 268, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.apcatb.2019.118405
Keywords
Metal-organic framework (MOF); FexN nanocrystals; N-doped carbon; Oxygen reduction reaction; Zn-air batteries
Funding
- National Natural Science Foundation of China [21607147, 21590812, 51821006, 21976170]
Ask authors/readers for more resources
In this work, we have found that a new Fe-N module, FexN (x = 2, 3, or 4), in which the N atoms insert the lattice of Fe matrix, also has high catalytic activity towards ORR. We synthesized the FexN module embedded N-doped carbon material (FexN/NC) via a facile metal-organic framework (MOF)-templated approach. The as-synthesized FexN/NC shows a superb catalytic ORR activity as well as high methanol tolerance. The highly efficient catalytic active sites (FexN module and well-doped N species) were mainly responsible for the superb ORR activity. The synergistic mechanisms of the N-doped carbon support and FexN moieties for ORR at molecular level were elucidated by density functional theory calculations. The excellent catalytic ORR performance make the FexN/ NC catalyst be a promising candidate to replace the expensive Pt based cathodic catalyst in Zn-air batteries.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available