Single-atom catalysts (SACs) have been applied in many fields due to their superior catalytic performance. Because of the unique properties of the single-atom-site, using the single atoms as catalysts to synthesize SACs is promising. In this work, we have successfully achieved Co1 SAC using Pt1 atoms as catalysts. More importantly, this synthesis strategy can be extended to achieve Fe and Ni SACs as well. X-ray absorption spectroscopy (XAS) results demonstrate that the achieved Fe, Co, and Ni SACs are in a M1-pyrrolic N4 (M= Fe, Co, and Ni) structure. Density functional theory (DFT) studies show that the Co(Cp)2 dissociation is enhanced by Pt1 atoms, thus leading to the formation of Co1 atoms instead of nanoparticles. These SACs are also evaluated under hydrogen evolution reaction (HER) and oxygen evolution reaction (OER), and the nature of active sites under HER are unveiled by the operando XAS studies. These new findings extend the application fields of SACs to catalytic fabrication methodology, which is promising for the rational design of advanced SACs.
Li, Junjie, et al. "A general strategy for preparing pyrrolic-N<sub>4</sub> type single-atom catalysts via pre-located isolated atoms." Nature Communications, vol. 12, no. 1, Nov. 2021. https://doi.org/10.1038/s41467-021-27143-5
Li, Junjie, Jiang, Ya-fei, Wang, Qi, et al., "A general strategy for preparing pyrrolic-N<sub>4</sub> type single-atom catalysts via pre-located isolated atoms," Nature Communications 12, no. 1 (2021), https://doi.org/10.1038/s41467-021-27143-5
@article{osti_1833706,
author = {Li, Junjie and Jiang, Ya-fei and Wang, Qi and Xu, Cong-Qiao and Wu, Duojie and Banis, Mohammad Norouzi and Adair, Keegan R. and Doyle-Davis, Kieran and Meira, Debora Motta and Finfrock, Y. Zou and others},
title = {A general strategy for preparing pyrrolic-N<sub>4</sub> type single-atom catalysts via pre-located isolated atoms},
annote = {Single-atom catalysts (SACs) have been applied in many fields due to their superior catalytic performance. Because of the unique properties of the single-atom-site, using the single atoms as catalysts to synthesize SACs is promising. In this work, we have successfully achieved Co1 SAC using Pt1 atoms as catalysts. More importantly, this synthesis strategy can be extended to achieve Fe and Ni SACs as well. X-ray absorption spectroscopy (XAS) results demonstrate that the achieved Fe, Co, and Ni SACs are in a M1-pyrrolic N4 (M= Fe, Co, and Ni) structure. Density functional theory (DFT) studies show that the Co(Cp)2 dissociation is enhanced by Pt1 atoms, thus leading to the formation of Co1 atoms instead of nanoparticles. These SACs are also evaluated under hydrogen evolution reaction (HER) and oxygen evolution reaction (OER), and the nature of active sites under HER are unveiled by the operando XAS studies. These new findings extend the application fields of SACs to catalytic fabrication methodology, which is promising for the rational design of advanced SACs.},
doi = {10.1038/s41467-021-27143-5},
url = {https://www.osti.gov/biblio/1833706},
journal = {Nature Communications},
issn = {ISSN 2041-1723},
number = {1},
volume = {12},
place = {United States},
publisher = {Nature Publishing Group},
year = {2021},
month = {11}}
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 582, Issue 1https://doi.org/10.1016/j.nima.2007.08.109