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  Palladium Intercalated into the Walls of Mesoporous Silica as Robust and Regenerable Catalysts for Hydrodeoxygenation of Phenolic Compounds

Gage, S. H., Engelhardt, J., Menart, M. J., Ngo, C., Leong, G. J., Ji, Y., et al. (2018). Palladium Intercalated into the Walls of Mesoporous Silica as Robust and Regenerable Catalysts for Hydrodeoxygenation of Phenolic Compounds. ACS Omega, 3(7), 7681-7691. doi:10.1021/acsomega.8b00951.

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 Creators:
Gage, Samuel H.1, Author
Engelhardt, Jan2, Author              
Menart, Martin J.1, Author
Ngo, Chilan1, Author
Leong, G. Jeremy1, Author
Ji, Yazhou1, Author
Trewyn, Brian G.1, Author
Pylypenko, Svitlana1, Author
Richards, Ryan M., Author
Affiliations:
1Department of Chemistry, Colorado School of Mines, Golden, Colorado 80401, United States, ou_persistent22              
2Research Department Schüth, Max-Planck-Institut für Kohlenforschung, Max Planck Society, ou_1445589              

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 Abstract: Nanostructured noble-metal catalysts traditionally suffer from sintering under high operating temperatures, leading to durability issues and process limitations. The encapsulation of nanostructured catalysts to prevent loss of activity through thermal sintering, while maintaining accessibility of active sites, remains a great challenge in the catalysis community. Here, we report a robust and regenerable palladium-based catalyst, wherein palladium particles are intercalated into the three-dimensional framework of SBA-15-type mesoporous silica. The encapsulated Pd active sites remain catalytically active as demonstrated in high-temperature/pressure phenol hydrodeoxygenation reactions. The confinement of Pd particles in the walls of SBA-15 prevents particle sintering at high temperatures. Moreover, a partially deactivated catalyst containing intercalated particles is regenerated almost completely even after several reaction cycles. In contrast, Pd particles, which are not encapsulated within the SBA-15 framework, sinter and do not recover prior activity after a regeneration procedure.

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Language(s): eng - English
 Dates: 2018-05-092018-06-272018-07-112018-07-31
 Publication Status: Published in print
 Pages: 11
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1021/acsomega.8b00951
 Degree: -

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Title: ACS Omega
Source Genre: Journal
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Publ. Info: Washington, DC : American Chemical Society
Pages: - Volume / Issue: 3 (7) Sequence Number: - Start / End Page: 7681 - 7691 Identifier: ISSN: 2470-1343
CoNE: https://pure.mpg.de/cone/journals/resource/2470-1343