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Site and Structural Requirements for the Dehydra-Decyclization of Cyclic Ethers on ZrO2

Journal Article · · Catalysts

In this study, we examined the site and structural requirements for the dehydra-decyclization of cyclic ethers, tetrahydrofuran, and tetrahydropyran to produce conjugated dienes over ZrO2-based catalysts, a reaction that could be an important step in the use of biomass-derived sugars as a starting material to produce monomers for the plastics industry. To help identify the active sites for this reaction, studies were conducted in which ZrO2 surfaces were decorated with Na. These studies showed that Na was effective at poisoning the activity for the ring opening of cyclic ethers, but much less so for the dehydration of the resulting adsorbed alkoxides. The studies of the activity of different types of ZrO2 for the dehydra-decyclization reaction, including single crystals and ultra-thin films supported on MgAl2O4 and silica, also showed that the reaction was dependent on the local structure of the ZrO2 surface. The insights these results provide for identifying the active sites on the ZrO2 surface are discussed.

Research Organization:
University of Delaware, Newark, DE (United States); University of Pennsylvania, Philadelphia, PA (United States)
Sponsoring Organization:
USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0001004
OSTI ID:
1882016
Alternate ID(s):
OSTI ID: 1981114
Journal Information:
Catalysts, Journal Name: Catalysts Journal Issue: 8 Vol. 12; ISSN CATACJ; ISSN 2073-4344
Publisher:
MDPI AGCopyright Statement
Country of Publication:
Switzerland
Language:
English

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