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A new approach to well-defined, stable and site-isolated catalysts
Open accessAbstract
A new concept to circumvent some of the problems that are hindering a rational metallic catalyst development is introduced. Investigation of conventional metal catalysts — which consist of supported metals, metal mixtures or alloys — is handicapped by the presence of a variety of active sites, their possible agglomeration, metal–support interactions as well as segregation of the components. In order to avoid most of the drawbacks, we employ well-defined, ordered and in-situ stable unsupported intermetallic compounds. Knowledge of the chemical bonding in the compounds and the defined neighbourhood of the active sites allows a rational approach to catalysts with excellent selectivity as well as long-term stability. The concept is demonstrated for the intermetallic compound PdGa, which is applied as catalyst for the selective hydrogenation of acetylene to ethylene.
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Cited by
Towards the computational design of solid catalysts
Nørskov, J. K., Bligaard, T., Rossmeisl, J., & Christensen, C. H. (2009) · Nature Chemistry · doi:10.1038/nchem.121 · Cited by 4,161
Al13Fe4 as a low-cost alternative for palladium in heterogeneous hydrogenation
Armbrüster, M., Kovnir, K., Friedrich, M., Teschner, D., Wowsnick, G., Hahne, M., Gille, P., Szentmiklósi, L., Feuerbacher, M., Heggen, M., et al. (2012) · Nature Materials · doi:10.1038/nmat3347 · Cited by 406
Self-citationStructural Changes of Intermetallic Catalysts under Reaction Conditions
Li, X., Zhao, J., & Su, D. (2021) · Small Structures · doi:10.1002/sstr.202100011 · Cited by 30
Metadata
- Authors
- Kovnir, K., Armbrüster, M., Teschner, D., Venkov, T. V., Jentoft, F. C., Knop-Gericke, A., Grin, Y., & Schlögl, R.
- Venue
- Science and Technology of Advanced Materials
- Publisher
- Informa UK Limited
- Published
- 2007-01-01
- Volume
- 8
- Issue
- 5
- Pages
- 420-427
- ISSN
- 1468-6996 (ISSN-L)
- 1878-5514
- OpenAlex
- W2034275169
- Cited by
- 205
- References
- 0
- FWCI
- 2.86
- Type
- journal article
- Language
- en
- Open access
- gold
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- Kovnir, K., Armbrüster, M., Teschner, D., Venkov, T. V., Jentoft, F. C., Knop-Gericke, A., Grin, Y., & Schlögl, R. (2007). A new approach to well-defined, stable and site-isolated catalysts. Science and Technology of Advanced Materials. https://doi.org/10.1016/j.stam.2007.05.004
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