Publication detail

Stabilizing Single Ni Adatoms on a Two-Dimensional Porous Titania Overlayer at the SrTiO3(110) Surface

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"
}