Building Principles and Structural Motifs in TiOx Ultrathin Films on a
 (111) Substrate

Giovanni Barcaro; Emanuele Cavaliere; Luca Artiglia; Luca Sementa; Luca Gavioli; Gaetano Granozzi; Alessandro Fortunelli

doi:10.1021/jp303730j

Building Principles and Structural Motifs in TiOx Ultrathin Films on a (111) Substrate

Giovanni Barcaro, Emanuele Cavaliere, Luca Artiglia, Luca Sementa, Luca Gavioli, Gaetano Granozzi, Alessandro Fortunelli

National Research Council of Italy

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

30 Citations (Scopus)

Abstract

The competition between rectangular and hexagonal phases in TiOx ultrathin (monolayer) films grown on a Pt(111) surface is discussed and rationalized on the basis of general building principles for these pseudoepitaxial oxide phases on a (111) metal substrate. A novel hexagonal reduced phase is also presented for the first time, obtained by thermal treatment at high temperature (similar to 1000 K), and its atomistic structure is unveiled through a combination of STM experiments and theoretical simulations. A consistent picture is obtained for a class of structural families for ultrathin oxide phases on close-packed single-crystal metal surfaces.

Original language	English
Pages (from-to)	13302-13306
Number of pages	5
Journal	JOURNAL OF PHYSICAL CHEMISTRY. C
Volume	116
DOIs	https://doi.org/10.1021/jp303730j
Publication status	Published - 2012

Keywords

ALLOY
AU(111)
CATALYST
LEED
NANOPARTICLES
PT(111)
STM
SURFACE-STRUCTURES
TIO2(110)
XPS

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10.1021/jp303730j

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title = "Building Principles and Structural Motifs in TiOx Ultrathin Films on a (111) Substrate",

abstract = "The competition between rectangular and hexagonal phases in TiOx ultrathin (monolayer) films grown on a Pt(111) surface is discussed and rationalized on the basis of general building principles for these pseudoepitaxial oxide phases on a (111) metal substrate. A novel hexagonal reduced phase is also presented for the first time, obtained by thermal treatment at high temperature (similar to 1000 K), and its atomistic structure is unveiled through a combination of STM experiments and theoretical simulations. A consistent picture is obtained for a class of structural families for ultrathin oxide phases on close-packed single-crystal metal surfaces.",

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author = "Giovanni Barcaro and Emanuele Cavaliere and Luca Artiglia and Luca Sementa and Luca Gavioli and Gaetano Granozzi and Alessandro Fortunelli",

year = "2012",

doi = "10.1021/jp303730j",

language = "English",

volume = "116",

pages = "13302--13306",

journal = "JOURNAL OF PHYSICAL CHEMISTRY. C",

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T1 - Building Principles and Structural Motifs in TiOx Ultrathin Films on a (111) Substrate

AU - Barcaro, Giovanni

AU - Cavaliere, Emanuele

AU - Artiglia, Luca

AU - Sementa, Luca

AU - Gavioli, Luca

AU - Granozzi, Gaetano

AU - Fortunelli, Alessandro

PY - 2012

Y1 - 2012

N2 - The competition between rectangular and hexagonal phases in TiOx ultrathin (monolayer) films grown on a Pt(111) surface is discussed and rationalized on the basis of general building principles for these pseudoepitaxial oxide phases on a (111) metal substrate. A novel hexagonal reduced phase is also presented for the first time, obtained by thermal treatment at high temperature (similar to 1000 K), and its atomistic structure is unveiled through a combination of STM experiments and theoretical simulations. A consistent picture is obtained for a class of structural families for ultrathin oxide phases on close-packed single-crystal metal surfaces.

AB - The competition between rectangular and hexagonal phases in TiOx ultrathin (monolayer) films grown on a Pt(111) surface is discussed and rationalized on the basis of general building principles for these pseudoepitaxial oxide phases on a (111) metal substrate. A novel hexagonal reduced phase is also presented for the first time, obtained by thermal treatment at high temperature (similar to 1000 K), and its atomistic structure is unveiled through a combination of STM experiments and theoretical simulations. A consistent picture is obtained for a class of structural families for ultrathin oxide phases on close-packed single-crystal metal surfaces.

KW - ALLOY

KW - AU(111)

KW - CATALYST

KW - LEED

KW - NANOPARTICLES

KW - PT(111)

KW - STM

KW - SURFACE-STRUCTURES

KW - TIO2(110)

KW - XPS

KW - ALLOY

KW - AU(111)

KW - CATALYST

KW - LEED

KW - NANOPARTICLES

KW - PT(111)

KW - STM

KW - SURFACE-STRUCTURES

KW - TIO2(110)

KW - XPS

UR - http://hdl.handle.net/10807/26223

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DO - 10.1021/jp303730j

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JO - JOURNAL OF PHYSICAL CHEMISTRY. C

JF - JOURNAL OF PHYSICAL CHEMISTRY. C

ER -

Building Principles and Structural Motifs in TiOx Ultrathin Films on a (111) Substrate

Abstract

Keywords

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