KJCKorea
Journal Central

@article{ART002963474},
author={Jang Han-Wool and Lee Seon Yeong and Lee Jong Yoon and Joh Han-Ik},
title={Effect of Fe content on nonprecious cathodic catalysts derived from a metal–organic framework for direct ammonia fuel cells},
journal={Carbon Letters},
issn={1976-4251},
year={2023},
volume={33},
number={1},
pages={215-223},
doi={10.1007/s42823-022-00418-7}

TY - JOUR
AU - Jang Han-Wool
AU - Lee Seon Yeong
AU - Lee Jong Yoon
AU - Joh Han-Ik
TI - Effect of Fe content on nonprecious cathodic catalysts derived from a metal–organic framework for direct ammonia fuel cells
JO - Carbon Letters
PY - 2023
VL - 33
IS - 1
PB - Korean Carbon Society
SP - 215
EP - 223
SN - 1976-4251
AB - Ammonia is considered a promising hydrogen carrier due to its high hydrogen density and liquefaction temperature. Considering that the energy efficiency generally decreases as chemical conversion is repeated, it is more efficient to directly use ammonia as a fuel for fuel cells. However, catalysts in direct ammonia fuel cells have the critical issues of sluggish ammonia oxidation reaction (AOR) rate and poisoning of reaction intermediates. In particular, the use of precious metal as cathodic catalysts has been limited due to ammonia crossover and poisoning. In this study, we introduce Fe-based single-atom catalysts with selective activity for the oxygen reduction reaction (ORR) even in the presence of ammonia. As the Fe content increased, the single-atom structure of the catalysts changed into Fe nanoparticles or carbides. Among our Fe–N–C catalysts, FeNC-50 with a Fe loading amount of 0.34 wt% showed the highest ORR performance regardless of the ammonia concentration. In particular, the difference in activity between the catalysts increased as the concentration increased. The FeNC-50 catalyst showed remarkable stability after 1000 cycles. Therefore, we believe that single-atom dispersion is an important factor in the development of stable non-precious catalysts with high activity and inactivity for the ORR and AOR, respectively.
KW - Single atom catalysts Fe-N-C Oxygen reduction reaction Direct ammonia fuel cell Ammonia tolerance
DO - 10.1007/s42823-022-00418-7
ER -

Jang Han-Wool, Lee Seon Yeong, Lee Jong Yoon and Joh Han-Ik. (2023). Effect of Fe content on nonprecious cathodic catalysts derived from a metal–organic framework for direct ammonia fuel cells. Carbon Letters, 33(1), 215-223.

Jang Han-Wool, Lee Seon Yeong, Lee Jong Yoon and Joh Han-Ik. 2023, "Effect of Fe content on nonprecious cathodic catalysts derived from a metal–organic framework for direct ammonia fuel cells", Carbon Letters, vol.33, no.1 pp.215-223. Available from: doi:10.1007/s42823-022-00418-7

Jang Han-Wool, Lee Seon Yeong, Lee Jong Yoon, Joh Han-Ik "Effect of Fe content on nonprecious cathodic catalysts derived from a metal–organic framework for direct ammonia fuel cells" Carbon Letters 33.1 pp.215-223 (2023) : 215.

Jang Han-Wool, Lee Seon Yeong, Lee Jong Yoon, Joh Han-Ik. Effect of Fe content on nonprecious cathodic catalysts derived from a metal–organic framework for direct ammonia fuel cells. 2023; 33(1), 215-223. Available from: doi:10.1007/s42823-022-00418-7

Jang Han-Wool, Lee Seon Yeong, Lee Jong Yoon and Joh Han-Ik. "Effect of Fe content on nonprecious cathodic catalysts derived from a metal–organic framework for direct ammonia fuel cells" Carbon Letters 33, no.1 (2023) : 215-223.doi: 10.1007/s42823-022-00418-7

Jang Han-Wool; Lee Seon Yeong; Lee Jong Yoon; Joh Han-Ik. Effect of Fe content on nonprecious cathodic catalysts derived from a metal–organic framework for direct ammonia fuel cells. Carbon Letters, 33(1), 215-223. doi: 10.1007/s42823-022-00418-7

Jang Han-Wool; Lee Seon Yeong; Lee Jong Yoon; Joh Han-Ik. Effect of Fe content on nonprecious cathodic catalysts derived from a metal–organic framework for direct ammonia fuel cells. Carbon Letters. 2023; 33(1) 215-223. doi: 10.1007/s42823-022-00418-7

Jang Han-Wool, Lee Seon Yeong, Lee Jong Yoon, Joh Han-Ik. Effect of Fe content on nonprecious cathodic catalysts derived from a metal–organic framework for direct ammonia fuel cells. 2023; 33(1), 215-223. Available from: doi:10.1007/s42823-022-00418-7

Jang Han-Wool, Lee Seon Yeong, Lee Jong Yoon and Joh Han-Ik. "Effect of Fe content on nonprecious cathodic catalysts derived from a metal–organic framework for direct ammonia fuel cells" Carbon Letters 33, no.1 (2023) : 215-223.doi: 10.1007/s42823-022-00418-7