Title: A review of the interactions between ceria and H2 and the applications to selective hydrogenation of alkynes

Journal Article · · Chinese Journal of Catalysis

Cerium oxide (ceria) has found a wide variety of applications in catalysis including as a catalyst, a modifier, or a support, largely thanks to its robust redox properties and versatile acid-base function. While it is often utilized for oxidation reactions, ceria has recently attracted intense research interest for its unusual ability to selectively hydrogenate alkynes to alkenes. The intriguing hydrogenation ability of ceria has sparked renewed research efforts to understand how pure ceria works as a hydrogenation catalyst. In this review, recent advances in both experimental and computational studies of ceria are summarized, focusing on the interaction of ceria with H2 and in hydrogenation reactions. Significant insights from various studies including in situ spectroscopy/microscopy and theoretic modeling of ceria in hydrogen-involved reactions are discussed, which shed light on the origin of the hydrogenation ability of ceria and the reaction mechanisms involved in ceria-catalyzed alkyne hydrogenation. Ways to further improve both the mechanistic understanding and catalytic performance of ceria-based materials for hydrogenation reactions are proposed at the end in the summary and outlook section.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1649383
Journal Information:
Chinese Journal of Catalysis, Journal Name: Chinese Journal of Catalysis Journal Issue: 6 Vol. 41; ISSN 1872-2067
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

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