Tuning Pt-CeO2 interactions by high-temperature vapor-phase synthesis for improved reducibility of lattice oxygen

Xavier Isidro Pereira-Hernández; Andrew DeLaRiva; Valery Muravev; Deepak Kunwar; Haifeng Xiong; Berlin Sudduth; Mark Engelhard; Libor Kovarik; Emiel J. M. Hensen; Yong Wang; Abhaya K. Datye

doi:10.1038/s41467-019-09308-5

Nature Communications (Mar 2019)

Tuning Pt-CeO2 interactions by high-temperature vapor-phase synthesis for improved reducibility of lattice oxygen

Xavier Isidro Pereira-Hernández,
Andrew DeLaRiva,
Valery Muravev,
Deepak Kunwar,
Haifeng Xiong,
Berlin Sudduth,
Mark Engelhard,
Libor Kovarik,
Emiel J. M. Hensen,
Yong Wang,
Abhaya K. Datye

Affiliations

Xavier Isidro Pereira-Hernández: Voiland School of Chemical Engineering and Bioengineering, Washington State University
Andrew DeLaRiva: Department of Chemical and Biological Engineering and Center for Micro-Engineered Materials, University of New Mexico
Valery Muravev: Laboratory of Inorganic Materials and Catalysis, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology
Deepak Kunwar: Department of Chemical and Biological Engineering and Center for Micro-Engineered Materials, University of New Mexico
Haifeng Xiong: Department of Chemical and Biological Engineering and Center for Micro-Engineered Materials, University of New Mexico
Berlin Sudduth: Voiland School of Chemical Engineering and Bioengineering, Washington State University
Mark Engelhard: Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory
Libor Kovarik: Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory
Emiel J. M. Hensen: Laboratory of Inorganic Materials and Catalysis, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology
Yong Wang: Voiland School of Chemical Engineering and Bioengineering, Washington State University
Abhaya K. Datye: Department of Chemical and Biological Engineering and Center for Micro-Engineered Materials, University of New Mexico

DOI: https://doi.org/10.1038/s41467-019-09308-5
Journal volume & issue: Vol. 10, no. 1
pp. 1 – 10

Abstract

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While single-atom catalysts (SACs) have attracted a lot of interest, the nature of the active sites in SACs remains elusive. Here the authors elucidate that depositing single atoms via high temperature synthesis leads to improved reducibility of lattice oxygen on CeO2 yielding low temperature reactivity of Pt catalysts in CO oxidation.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

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