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Direct Imaging of the Atomic Configuration of Ultradispersed Catalysts
Abstract
Direct imaging of individual catalyst metal atoms on the insulating surface of an industrial support is demonstrated. Individual platinum and rhodium atoms ultradispersed on γ-Al 2 O 3 supports were imaged by high-resolution Z -contrast (atomic number Z ) microscopy in a 300-kilovolt scanning transmission electron microscope. Within small clusters, the configuration of the metal atoms was seen to be constrained to match the surface structure of the γ-Al 2 O 3 , from which likely surface adsorption sites were deduced. A thin, extended raft of rhodium atoms was observed, mostly corresponding to one monolayer. Occasional two-atom features suggested partial dissolution into the top layers of the γ-Al 2 O 3 support.
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Cited by
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Qiao, B., Wang, A., Yang, X., Allard, L. F., Jiang, Z., Cui, Y., Liu, J., Li, J., & Zhang, T. (2011) · Nature Chemistry · doi:10.1038/nchem.1095 · Cited by 7,526
Single-Atom Catalysts across the Periodic Table
Kaiser, S. K., Chen, Z., Faust Akl, D., Mitchell, S., & Pérez-Ramírez, J. (2020) · Chemical Reviews · doi:10.1021/acs.chemrev.0c00576 · Cited by 1,367
Single‐Atom Catalysts: Emerging Multifunctional Materials in Heterogeneous Catalysis
Zhang, H., Liu, G., Shi, L., & Ye, J. (2018) · Advanced Energy Materials · doi:10.1002/aenm.201701343 · Cited by 1,078
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
- Nellist, P. D., & Pennycook, S. J.
- Venue
- Science
- Published
- 1996-10-18
- Volume
- 274
- Issue
- 5286
- Pages
- 413-415
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2086660400
- Cited by
- 322
- References
- 0
- FWCI
- 3.39
- Type
- journal article
- Language
- en
- Open access
- closed
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- Nellist, P. D., & Pennycook, S. J. (1996). Direct Imaging of the Atomic Configuration of Ultradispersed Catalysts. Science. https://doi.org/10.1126/science.274.5286.413
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