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Nickel-Oxide-Modified SrTiO3(110)-(4 x 1) Surfaces and Their Interaction with Water

Gerhold, Stefan; Riva, Michele; Wang, Zhiming; Bliem, Roland; Wagner, Margareta; Osiecki, Jacek LU ; Schulte, Karina LU ; Schmid, Michael and Diebold, Ulrike (2015) In Journal of Physical Chemistry C 119(35). p.20481-20487
Abstract
Nickel oxide (NiO), deposited onto the strontium titanate (SrTiO3) (110)-(4 X 1) surface, was studied using photoemission spectroscopy (PES), X-ray absorption near edge structure (XANES), and low-energy He+ ion scattering (LEIS), as well as scanning tunneling microscopy (STM). The main motivation for studying this system comes from the prominent role it plays in photocatalysis. The (4 X 1) reconstructed SrTiO3(110) surface was previously found to be remarkably inert toward water adsorption under ultrahigh-vacuum conditions. Nickel oxide grows on this surface as patches without any apparent ordered structure. PES and LEIS reveal an upward band bending, a reduction of the band gap, and reactivity toward water adsorption upon deposition of... (More)
Nickel oxide (NiO), deposited onto the strontium titanate (SrTiO3) (110)-(4 X 1) surface, was studied using photoemission spectroscopy (PES), X-ray absorption near edge structure (XANES), and low-energy He+ ion scattering (LEIS), as well as scanning tunneling microscopy (STM). The main motivation for studying this system comes from the prominent role it plays in photocatalysis. The (4 X 1) reconstructed SrTiO3(110) surface was previously found to be remarkably inert toward water adsorption under ultrahigh-vacuum conditions. Nickel oxide grows on this surface as patches without any apparent ordered structure. PES and LEIS reveal an upward band bending, a reduction of the band gap, and reactivity toward water adsorption upon deposition of NiO. Spectroscopic results are discussed with respect to the enhanced reactivity toward water of the NiO-loaded surface. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Physical Chemistry C
volume
119
issue
35
pages
20481 - 20487
publisher
The American Chemical Society
external identifiers
  • wos:000360947800030
  • pmid:26617682
  • scopus:84940846085
ISSN
1932-7447
DOI
10.1021/acs.jpcc.5b06144
language
English
LU publication?
yes
id
88a625e8-05fc-45e4-9468-7680a0da6609 (old id 8077195)
date added to LUP
2015-10-23 09:53:51
date last changed
2017-11-19 03:07:27
@article{88a625e8-05fc-45e4-9468-7680a0da6609,
  abstract     = {Nickel oxide (NiO), deposited onto the strontium titanate (SrTiO3) (110)-(4 X 1) surface, was studied using photoemission spectroscopy (PES), X-ray absorption near edge structure (XANES), and low-energy He+ ion scattering (LEIS), as well as scanning tunneling microscopy (STM). The main motivation for studying this system comes from the prominent role it plays in photocatalysis. The (4 X 1) reconstructed SrTiO3(110) surface was previously found to be remarkably inert toward water adsorption under ultrahigh-vacuum conditions. Nickel oxide grows on this surface as patches without any apparent ordered structure. PES and LEIS reveal an upward band bending, a reduction of the band gap, and reactivity toward water adsorption upon deposition of NiO. Spectroscopic results are discussed with respect to the enhanced reactivity toward water of the NiO-loaded surface.},
  author       = {Gerhold, Stefan and Riva, Michele and Wang, Zhiming and Bliem, Roland and Wagner, Margareta and Osiecki, Jacek and Schulte, Karina and Schmid, Michael and Diebold, Ulrike},
  issn         = {1932-7447},
  language     = {eng},
  number       = {35},
  pages        = {20481--20487},
  publisher    = {The American Chemical Society},
  series       = {Journal of Physical Chemistry C},
  title        = {Nickel-Oxide-Modified SrTiO3(110)-(4 x 1) Surfaces and Their Interaction with Water},
  url          = {http://dx.doi.org/10.1021/acs.jpcc.5b06144},
  volume       = {119},
  year         = {2015},
}