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WANG, Z. HAO, X. GERHOLD, S. MAREŠ, P. WAGNER, M. BLIEM, R. SCHULTE, K. SCHMID, M. FRANCHINI, C. DIEBOLD, U.
Original Title
Stabilizing Single Ni Adatoms on a Two-Dimensional Porous Titania Overlayer at the SrTiO3(110) Surface
Type
journal article in Web of Science
Language
English
Original Abstract
Nickel vapor-deposited on the SrTiO3(110) surface was studied using scanning tunneling microscopy, photoemission spectroscopy (PES), and density functional theory calculations. This surface forms a (4 x 1) reconstruction, composed of a 2-D titania structure with periodic six- and ten-membered nanopores. Anchored at these nanopores, Ni single adatoms are stabilized at room temperature. PES measurements show that the Ni adatoms create an in-gap state located at 1.9 eV below the conduction band minimum and induce an upward band bending. Both experimental and theoretical results suggest that Ni adatoms are positively charged. Our study produces well-dispersed singleadatom arrays on a well-characterized oxide support, providing a model system to investigate single-adatom catalytic and magnetic properties.
Keywords
Oxide surfaces; Ni; Single atoms; STM
Authors
WANG, Z.; HAO, X.; GERHOLD, S.; MAREŠ, P.; WAGNER, M.; BLIEM, R.; SCHULTE, K.; SCHMID, M.; FRANCHINI, C.; DIEBOLD, U.
RIV year
2014
Released
2. 8. 2014
Publisher
ACS Publications
ISBN
1932-7447
Periodical
Journal of Physical Chemistry C (print)
Year of study
118
Number
34
State
United States of America
Pages from
19904
Pages to
19909
Pages count
6
URL
https://pubs.acs.org/doi/10.1021/jp506234r
Full text in the Digital Library
http://hdl.handle.net/11012/201731
BibTex
@article{BUT109282, author="Zhiming {Wang} and Xianfeng {Hao} and Stefan {Gerhold} and Petr {Mareš} and Margareta {Wagner} and Roland {Bliem} and Karina {Schulte} and Michael {Schmid} and Cesare {Franchini} and Ulrike {Diebold}", title="Stabilizing Single Ni Adatoms on a Two-Dimensional Porous Titania Overlayer at the SrTiO3(110) Surface", journal="Journal of Physical Chemistry C (print)", year="2014", volume="118", number="34", pages="19904--19909", doi="10.1021/jp506234r", issn="1932-7447", url="https://pubs.acs.org/doi/10.1021/jp506234r" }