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Title: Zeolite-Encapsulated Pt Nanoparticles for Tandem Catalysis

Journal Article · · Journal of the American Chemical Society
DOI:https://doi.org/10.1021/jacs.8b09568· OSTI ID:1495319

Encapsulation of metal nanoparticles in a zeolite matrix is a promising route to integrate multiple sequential reactions into a one-pot and one-step tandem catalytic reaction. We report a cationic polymer-assisted synthetic strategy to encapsulate Pt nanoparticles (NPs) into MFI zeolites. Degrees of encapsulation of Pt NPs in the synthesized catalysts exceeding 90% were demonstrated via kinetic studies of model reactions involving substrates with different molecular dimensions. HZSM-5 zeolite-encapsulated Pt NPs are able to selectively mediate the tandem Aldol condensation and hydrogenation of furfural and acetone to form hydrogenated C8 products with a combined yield of 87%. In contrast, hydrogenation and decarbonylation of furfural dominate on Pt NPs supported on HZSM-5 at otherwise identical conditions. The high selectivity towards the tandem reaction on the encapsulated catalyst is attributed to the distribution of metal and acid sites, which limits the access of furfural to Pt sites and promotes the acid-catalyzed Aldol condensation. This is the first demonstration that the product distribution in a tandem reaction is manipulated by tailoring the architecture of catalytic materials via encapsulation.

Research Organization:
Energy Frontier Research Centers (EFRC) (United States). Catalysis Center for Energy Innovation (CCEI); Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0012704
OSTI ID:
1495319
Report Number(s):
BNL-211286-2019-JAAM
Journal Information:
Journal of the American Chemical Society, Vol. 140, Issue 41; ISSN 0002-7863
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 120 works
Citation information provided by
Web of Science

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Cited By (11)

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Confinement Effects in Zeolite‐Confined Noble Metals journal June 2019
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Highly Active Mesoporous Cu−Al 2 O 3 Catalyst for the Hydrodeoxygenation of Furfural to 2‐methylfuran journal October 2019
Direct synthesis of hollow single-crystalline zeolite beta using a small organic lactam as a recyclable hollow-directing agent journal January 2019
Confinement Effects in Zeolite‐Confined Noble Metals journal September 2019
The catalytic behaviour in aqueous-phase hydrogenation over a renewable Ni catalyst derived from a perovskite-type oxide journal January 2018
Framework-confined Sn in Si-beta stabilizing ultra-small Pt nanoclusters as direct propane dehydrogenation catalysts with high selectivity and stability journal January 2019
Monodisperse nanoparticles for catalysis and nanomedicine journal January 2019
Assessment of the Location of Pt Nanoparticles in Pt/zeolite Y/γ‐Al 2 O 3 Composite Catalysts journal October 2019
Novel CoNi-metal–organic framework crystal-derived CoNi@C: synthesis and effective cascade catalysis journal January 2020

Figures / Tables (4)