Adsorbate-mediated strong metal–support interactions in oxide-supported Rh catalysts
Abstract
The optimization of supported metal catalysts predominantly focuses on engineering the metal site, for which physical insights based on extensive theoretical and experimental contributions have enabled the rational design of active sites. Although it is well known that supports can influence the catalytic properties of metals, insights into how metal–support interactions can be exploited to optimize metal active-site properties are lacking. Here in this paper, we utilize in situ spectroscopy and microscopy to identify and characterize a support effect in oxide-supported heterogeneous Rh catalysts. This effect is characterized by strongly bound adsorbates (HCOx) on reducible oxide supports (TiO2 and Nb2O5) that induce oxygen-vacancy formation in the support and cause HCOx-functionalized encapsulation of Rh nanoparticles by the support. The encapsulation layer is permeable to reactants, stable under the reaction conditions and strongly influences the catalytic properties of Rh, which enables rational and dynamic tuning of CO2-reduction selectivity.
- Authors:
-
- University of California, Riverside, CA (United States). Department of Chemical and Environmental Engineering
- University of California, Irvine, CA (United States). Department of Chemical Engineering and Materials Science; Univ. of Michigan, Ann Arbor, MI (United States). Department of Materials Science and Engineering
- Columbia Univ., New York, NY (United States). Department of Chemical Engineering,
- Columbia Univ., New York, NY (United States). Department of Chemical Engineering; Brookhaven National Lab. (BNL), Upton, NY (United States). Chemistry Department
- University of California, Irvine, CA (United States). Department of Chemical Engineering and Materials Science and Department of Physics and Astronomy
- University of California, Riverside, CA (United States). Department of Chemical and Environmental Engineering, Program in Materials Science, and UCR Center for Catalysis
- Publication Date:
- Research Org.:
- Brookhaven National Laboratory (BNL), Upton, NY (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF)
- OSTI Identifier:
- 1358016
- Report Number(s):
- BNL-113828-2017-JA
Journal ID: ISSN 1755-4330; R&D Project: CO035; KC0302010
- Grant/Contract Number:
- SC0012704; SC0012335; CHE-1301019; CBET-1159240; DMR-0723032
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Nature Chemistry
- Additional Journal Information:
- Journal Volume: 9; Journal Issue: 2; Journal ID: ISSN 1755-4330
- Publisher:
- Nature Publishing Group
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; Catalytic mechanisms; Heterogeneous catalysis
Citation Formats
Matsubu, John C., Zhang, Shuyi, DeRita, Leo, Marinkovic, Nebojsa S., Chen, Jingguang G., Graham, George W., Pan, Xiaoqing, and Christopher, Phillip. Adsorbate-mediated strong metal–support interactions in oxide-supported Rh catalysts. United States: N. p., 2016.
Web. doi:10.1038/NCHEM.2607.
Matsubu, John C., Zhang, Shuyi, DeRita, Leo, Marinkovic, Nebojsa S., Chen, Jingguang G., Graham, George W., Pan, Xiaoqing, & Christopher, Phillip. Adsorbate-mediated strong metal–support interactions in oxide-supported Rh catalysts. United States. https://doi.org/10.1038/NCHEM.2607
Matsubu, John C., Zhang, Shuyi, DeRita, Leo, Marinkovic, Nebojsa S., Chen, Jingguang G., Graham, George W., Pan, Xiaoqing, and Christopher, Phillip. Mon .
"Adsorbate-mediated strong metal–support interactions in oxide-supported Rh catalysts". United States. https://doi.org/10.1038/NCHEM.2607. https://www.osti.gov/servlets/purl/1358016.
@article{osti_1358016,
title = {Adsorbate-mediated strong metal–support interactions in oxide-supported Rh catalysts},
author = {Matsubu, John C. and Zhang, Shuyi and DeRita, Leo and Marinkovic, Nebojsa S. and Chen, Jingguang G. and Graham, George W. and Pan, Xiaoqing and Christopher, Phillip},
abstractNote = {The optimization of supported metal catalysts predominantly focuses on engineering the metal site, for which physical insights based on extensive theoretical and experimental contributions have enabled the rational design of active sites. Although it is well known that supports can influence the catalytic properties of metals, insights into how metal–support interactions can be exploited to optimize metal active-site properties are lacking. Here in this paper, we utilize in situ spectroscopy and microscopy to identify and characterize a support effect in oxide-supported heterogeneous Rh catalysts. This effect is characterized by strongly bound adsorbates (HCOx) on reducible oxide supports (TiO2 and Nb2O5) that induce oxygen-vacancy formation in the support and cause HCOx-functionalized encapsulation of Rh nanoparticles by the support. The encapsulation layer is permeable to reactants, stable under the reaction conditions and strongly influences the catalytic properties of Rh, which enables rational and dynamic tuning of CO2-reduction selectivity.},
doi = {10.1038/NCHEM.2607},
journal = {Nature Chemistry},
number = 2,
volume = 9,
place = {United States},
year = {Mon Sep 19 00:00:00 EDT 2016},
month = {Mon Sep 19 00:00:00 EDT 2016}
}
Web of Science
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Uniform small metal nanoparticles anchored on CeO2 nanorods driven by electroless chemical deposition
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Palladium nanocatalysts encapsulated on porous silica @ magnetic carbon-coated cobalt nanoparticles for sustainable hydrogenations of nitroarenes, alkenes and alkynes
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Light-driven methane dry reforming with single atomic site antenna-reactor plasmonic photocatalysts
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A Highly-Efficient KF-Modified Nanorod Support Zr−Ce Oxide Catalyst and its Application
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Photo-controlled bond changes on Pt/TiO 2 for promoting overall water splitting and restraining hydrogen–oxygen recombination
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Cinnamaldehyde hydrogenation using Au–Pd catalysts prepared by sol immobilisation
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Hot-Electron-Mediated Photochemical Reactions: Principles, Recent Advances, and Challenges
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