Evolution and stabilization of subnanometric metal species in confined space by in situ TEM
Abstract
Understanding the behavior and dynamic structural transformation of subnanometric metal species under reaction conditions will be helpful for understanding catalytic phenomena and for developing more efficient and stable catalysts based on single atoms and clusters.In this work,the evolution and stabilization of subnanometric Pt species confined in MCM-22 zeolite has been studied by in situ transmission electron microscopy (TEM). By correlating the results from in situ TEM studies and the results obtained in a continuous fix-bed reactor,it has been possible to delimitate the factors that control the dynamic agglomeration and redispersion behavior of metal species under reaction conditions. Here, the dynamic reversible transformation between atomically dispersed Pt species and clusters/nanoparticles during CO oxidation at different temperatures has been elucidated.Ithas also been confirmed that subnanometric Pt clusters can be stabilized in MCM-22 crystallites during NO reduction with CO and H2.
- Authors:
-
[3];
- Univ. Politecnica de Valencia-Consejo Superior de Investigaciones Cientificas (UPV-CSIC), Valencia (Spain)
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Univ. de Zaragoza, Zaragoza (Spain)
- Publication Date:
- Research Org.:
- Brookhaven National Laboratory (BNL), Upton, NY (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1436258
- Report Number(s):
- BNL-203609-2018-JAAM
Journal ID: ISSN 2041-1723
- Grant/Contract Number:
- SC0012704
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Nature Communications
- Additional Journal Information:
- Journal Volume: 9; Journal Issue: 1; Journal ID: ISSN 2041-1723
- Publisher:
- Nature Publishing Group
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 77 NANOSCIENCE AND NANOTECHNOLOGY; transmission electron microscopy; catalysis; metal clusters; zeolite; dynamic structural transformations; CO oxidation; Pt clusters; NO reduction
Citation Formats
Liu, Lichen, Zakharov, Dmitri N., Arenal, Raul, Concepcion, Patricia, Stach, Eric A., and Corma, Avelino. Evolution and stabilization of subnanometric metal species in confined space by in situ TEM. United States: N. p., 2018.
Web. doi:10.1038/s41467-018-03012-6.
Liu, Lichen, Zakharov, Dmitri N., Arenal, Raul, Concepcion, Patricia, Stach, Eric A., & Corma, Avelino. Evolution and stabilization of subnanometric metal species in confined space by in situ TEM. United States. https://doi.org/10.1038/s41467-018-03012-6
Liu, Lichen, Zakharov, Dmitri N., Arenal, Raul, Concepcion, Patricia, Stach, Eric A., and Corma, Avelino. Thu .
"Evolution and stabilization of subnanometric metal species in confined space by in situ TEM". United States. https://doi.org/10.1038/s41467-018-03012-6. https://www.osti.gov/servlets/purl/1436258.
@article{osti_1436258,
title = {Evolution and stabilization of subnanometric metal species in confined space by in situ TEM},
author = {Liu, Lichen and Zakharov, Dmitri N. and Arenal, Raul and Concepcion, Patricia and Stach, Eric A. and Corma, Avelino},
abstractNote = {Understanding the behavior and dynamic structural transformation of subnanometric metal species under reaction conditions will be helpful for understanding catalytic phenomena and for developing more efficient and stable catalysts based on single atoms and clusters.In this work,the evolution and stabilization of subnanometric Pt species confined in MCM-22 zeolite has been studied by in situ transmission electron microscopy (TEM). By correlating the results from in situ TEM studies and the results obtained in a continuous fix-bed reactor,it has been possible to delimitate the factors that control the dynamic agglomeration and redispersion behavior of metal species under reaction conditions. Here, the dynamic reversible transformation between atomically dispersed Pt species and clusters/nanoparticles during CO oxidation at different temperatures has been elucidated.Ithas also been confirmed that subnanometric Pt clusters can be stabilized in MCM-22 crystallites during NO reduction with CO and H2.},
doi = {10.1038/s41467-018-03012-6},
journal = {Nature Communications},
number = 1,
volume = 9,
place = {United States},
year = {Thu Feb 08 00:00:00 EST 2018},
month = {Thu Feb 08 00:00:00 EST 2018}
}
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Generation of subnanometric platinum with high stability during transformation of a 2D zeolite into 3D
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Dual role of CO in the stability of subnano Pt clusters at the Fe 3 O 4 (001) surface
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Atom-Resolved Imaging of Dynamic Shape Changes in Supported Copper Nanocrystals
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Atomically Dispersed Supported Metal Catalysts
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