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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
; ; ; ; ; ; ; and
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 (ACS)
external identifiers
  • wos:000360947800030
  • pmid:26617682
  • 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
2016-04-01 10:12:35
date last changed
2022-04-12 03:07:23
@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 (ACS)}},
  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}},
  doi          = {{10.1021/acs.jpcc.5b06144}},
  volume       = {{119}},
  year         = {{2015}},
}