The DOI matches its Crossref record; 40 of the 40 references it cites were found in a registry or an index.
Controlling Catalytic Selectivity on Metal Nanoparticles by Direct Photoexcitation of Adsorbate–Metal Bonds
Abstract
Engineering heterogeneous metal catalysts for high selectivity in thermal driven reactions typically involves the synthesis of nanostructures with well-controlled geometries and compositions. However, inherent relationships between the energetics of elementary steps limit the control of catalytic selectivity through these approaches. Photon excitation of metal catalysts can induce chemical reactivity channels that cannot be accessed using thermal energy, although the potential for targeted activation of adsorbate-metal bonds is limited because the processes of photon absorption and adsorbate-metal bond photoexcitation are typically separated spatially. Here, we show that the use of sub-5-nanometer metal particles as photocatalysts enables direct photoexcitation of hybridized adsorbate-metal states as the dominant mechanism driving photochemistry. Activation of targeted adsorbate-metal bonds through direct photoexcitation of hybridized electronic states enabled selectivity control in preferential CO oxidation in H2 rich streams. This mechanism opens new avenues to drive selective catalytic reactions that cannot be achieved using thermal energy.
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Cites
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Cited by
Metal Catalysts for Heterogeneous Catalysis: From Single Atoms to Nanoclusters and Nanoparticles
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Plasmon-Enhanced Catalysis: Distinguishing Thermal and Nonthermal Effects
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Metadata
- Authors
- Kale, M. J., Avanesian, T., Xin, H., Yan, J., & Christopher, P.
- Venue
- Nano Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2014-08-14
- Volume
- 14
- Issue
- 9
- Pages
- 5405-5412
- ISSN
- 1530-6984 (ISSN-L)
- 1530-6992
- OpenAlex
- W2322184445
- Cited by
- 257
- References
- 40
- FWCI
- 9.53
- Type
- journal article
- Language
- en
- Open access
- closed
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