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Remarkable Performance of Ir1/FeOx Single-Atom Catalyst in Water Gas Shift Reaction
Abstract
High specific activity and cost effectiveness of single-atom catalysts hold practical value for water gas shift (WGS) reaction toward hydrogen energy. We reported the preparation and characterization of Ir single atoms supported on FeO(x) (Ir1/FeO(x)) catalysts, the activity of which is 1 order of magnitude higher than its cluster or nanoparticle counterparts and is even higher than those of the most active Au- or Pt-based catalysts. Extensive studies reveal that the single atoms accounted for ∼70% of the total activity of catalysts containing single atoms, subnano clusters, and nanoparticles, thus serving as the most important active sites. The Ir single atoms seem to greatly enhance the reducibility of the FeO(x) support and generation of oxygen vacancies, leading to the excellent performance of the Ir1/FeO(x) single-atom catalyst. The results have broad implications on designing supported metal catalysts with better performance and lower cost.
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Cites
Identification of Active Gold Nanoclusters on Iron Oxide Supports for CO Oxidation
Herzing, A. A., Kiely, C. J., Carley, A. F., Landon, P., & Hutchings, G. J. (2008) · Science · doi:10.1126/science.1159639 · Cited by 1,530
Cited by
Fei, H., Dong, J., Feng, Y., Allen, C. S., Wan, C., Volosskiy, B., Li, M., Zhao, Z., Wang, Y., Sun, H., et al. (2018) · Nature Catalysis · doi:10.1038/s41929-017-0008-y · Cited by 1,973
Atomic cobalt on nitrogen-doped graphene for hydrogen generation
Fei, H., Dong, J., Arellano-Jiménez, M. J., Ye, G., Dong Kim, N., Samuel, E. L. G., Peng, Z., Zhu, Z., Qin, F., Bao, J., et al. (2015) · Nature Communications · doi:10.1038/ncomms9668 · Cited by 1,621
Catalysis by Supported Single Metal Atoms
Liu, J. (2017) · ACS Catalysis · doi:10.1021/acscatal.6b01534 · Cited by 1,331
Self-citationTuning selectivity of electrochemical reactions by atomically dispersed platinum catalyst
Choi, C. H., Kim, M., Kwon, H. C., Cho, S. J., Yun, S., Kim, H.-T., Mayrhofer, K. J. J., Kim, H., & Choi, M. (2016) · Nature Communications · doi:10.1038/ncomms10922 · Cited by 849
High performance platinum single atom electrocatalyst for oxygen reduction reaction
Liu, J., Jiao, M., Lu, L., Barkholtz, H. M., Li, Y., Wang, Y., Jiang, L., Wu, Z., Liu, D.-J., Zhuang, L., et al. (2017) · Nature Communications · doi:10.1038/ncomms15938 · Cited by 772
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Metadata
- Authors
- Lin, J., Wang, A., Qiao, B., Liu, X., Yang, X., Wang, X., Liang, J., Li, J., Liu, J., & Zhang, T.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2013-10-07
- Volume
- 135
- Issue
- 41
- Pages
- 15314-15317
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W2314274336
- Cited by
- 980
- References
- 1
- FWCI
- 15.39
- Type
- journal article
- Language
- en
- Open access
- closed
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- Lin, J., Wang, A., Qiao, B., Liu, X., Yang, X., Wang, X., Liang, J., Li, J., Liu, J., & Zhang, T. (2013). Remarkable Performance of Ir1/FeOx Single-Atom Catalyst in Water Gas Shift Reaction. Journal of the American Chemical Society. https://doi.org/10.1021/ja408574m
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