Equilibrium oxygen storage capacity of ultrathin CeO2-δ depends non-monotonically on large biaxial strain

Chirranjeevi Balaji Gopal; Max García-Melchor; Sang Chul Lee; Yezhou Shi; Andrey Shavorskiy; Matteo Monti; Zixuan Guan; Robert Sinclair; Hendrik Bluhm; Aleksandra Vojvodic; William C. Chueh

doi:10.1038/ncomms15360

Nature Communications (May 2017)

Equilibrium oxygen storage capacity of ultrathin CeO2-δ depends non-monotonically on large biaxial strain

Chirranjeevi Balaji Gopal,
Max García-Melchor,
Sang Chul Lee,
Yezhou Shi,
Andrey Shavorskiy,
Matteo Monti,
Zixuan Guan,
Robert Sinclair,
Hendrik Bluhm,
Aleksandra Vojvodic,
William C. Chueh

Affiliations

Chirranjeevi Balaji Gopal: Department of Materials Science and Engineering, Stanford University
Max García-Melchor: SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory
Sang Chul Lee: Department of Materials Science and Engineering, Stanford University
Yezhou Shi: Department of Materials Science and Engineering, Stanford University
Andrey Shavorskiy: MAX IV Laboratory, Lund University
Matteo Monti: Department of Materials Science and Engineering, Stanford University
Zixuan Guan: Department of Applied Physics, Stanford University
Robert Sinclair: Department of Materials Science and Engineering, Stanford University
Hendrik Bluhm: Chemical Sciences Division, Lawrence Berkeley National Laboratory
Aleksandra Vojvodic: SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory
William C. Chueh: Department of Materials Science and Engineering, Stanford University

DOI: https://doi.org/10.1038/ncomms15360
Journal volume & issue: Vol. 8, no. 1
pp. 1 – 12

Abstract

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The surface oxygen storage capacity is an important metric of catalytic activity, but its dependence on strain is not well characterized. Here, the authors show the surface oxygen nonstoichiometry in coherently strained CeO2-δ films increases non-monotonically with biaxial strain.

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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