Structural transformations of zinc oxide layers on Pt(111)

Bo Hong Liu; Martin E. McBriarty; Michael J. Bedzyk; Shamil Shaikhutdinov; Hans Joachim Freund

doi:10.1021/jp510069q

Structural transformations of zinc oxide layers on Pt(111)

Bo Hong Liu, Martin E. McBriarty, Michael J. Bedzyk, Shamil Shaikhutdinov^*, Hans Joachim Freund

^*Corresponding author for this work

Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

31 Scopus citations

Abstract

The morphology of ultrathin zinc oxide films grown on Pt(111) was studied as a function of preparation and exposure conditions. The results show that submonolayer films exhibit a large variety of structures that may transform into each other depending on ambient conditions. The transformations are accompanied by substantial mass transport across the surface even at room temperature, indicating the presence and high diffusivity of migrating ZnO_x species. Comparison with other metal-supported ZnO films shows that the metal substrate may play a role in such transformations. The structural diversity of ultrathin ZnO may be responsible for the continuing controversy over the role of ZnO in the catalytic performance of ZnO/metal systems.

Original language	English (US)
Pages (from-to)	28725-28729
Number of pages	5
Journal	Journal of Physical Chemistry C
Volume	118
Issue number	49
DOIs	https://doi.org/10.1021/jp510069q
State	Published - Dec 11 2014

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Energy(all)
Physical and Theoretical Chemistry
Surfaces, Coatings and Films

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title = "Structural transformations of zinc oxide layers on Pt(111)",

abstract = "The morphology of ultrathin zinc oxide films grown on Pt(111) was studied as a function of preparation and exposure conditions. The results show that submonolayer films exhibit a large variety of structures that may transform into each other depending on ambient conditions. The transformations are accompanied by substantial mass transport across the surface even at room temperature, indicating the presence and high diffusivity of migrating ZnOx species. Comparison with other metal-supported ZnO films shows that the metal substrate may play a role in such transformations. The structural diversity of ultrathin ZnO may be responsible for the continuing controversy over the role of ZnO in the catalytic performance of ZnO/metal systems.",

author = "Liu, {Bo Hong} and McBriarty, {Martin E.} and Bedzyk, {Michael J.} and Shamil Shaikhutdinov and Freund, {Hans Joachim}",

note = "Publisher Copyright: {\textcopyright} 2014 American Chemical Society.",

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AU - Liu, Bo Hong

AU - McBriarty, Martin E.

AU - Bedzyk, Michael J.

AU - Shaikhutdinov, Shamil

AU - Freund, Hans Joachim

PY - 2014/12/11

Y1 - 2014/12/11

N2 - The morphology of ultrathin zinc oxide films grown on Pt(111) was studied as a function of preparation and exposure conditions. The results show that submonolayer films exhibit a large variety of structures that may transform into each other depending on ambient conditions. The transformations are accompanied by substantial mass transport across the surface even at room temperature, indicating the presence and high diffusivity of migrating ZnOx species. Comparison with other metal-supported ZnO films shows that the metal substrate may play a role in such transformations. The structural diversity of ultrathin ZnO may be responsible for the continuing controversy over the role of ZnO in the catalytic performance of ZnO/metal systems.

AB - The morphology of ultrathin zinc oxide films grown on Pt(111) was studied as a function of preparation and exposure conditions. The results show that submonolayer films exhibit a large variety of structures that may transform into each other depending on ambient conditions. The transformations are accompanied by substantial mass transport across the surface even at room temperature, indicating the presence and high diffusivity of migrating ZnOx species. Comparison with other metal-supported ZnO films shows that the metal substrate may play a role in such transformations. The structural diversity of ultrathin ZnO may be responsible for the continuing controversy over the role of ZnO in the catalytic performance of ZnO/metal systems.

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JO - Journal of Physical Chemistry C

JF - Journal of Physical Chemistry C

SN - 1932-7447

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Structural transformations of zinc oxide layers on Pt(111)

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