Abstract
Methanol adsorption on the stoichiometric and slightly reduced ZnO(1010) surfaces has been studied by scanning tunneling microscopy (STM). On the stoichiometric surface it was found that adsorbed methanol formed two types of ordered structures by dissociative adsorption in different modes, one of which was a dominant two-dimensional island structure residing on surface zinc atom rows, while the other was a linear chain structure residing between two surface zinc rows. In addition, a mobile phase of molecularly adsorbed methanol was deduced occupying the areas aside the ordered domains and keeping in equilibrium with the island structure. In contrast to the stoichiometric surface, on the slightly reduced surface, only the linear chain structure was observed as an ordered phase, accompanied by an unusual type of line defects. The STM observations indicated that the drastic change of surface properties occurred on the whole surface not at the specific sites such as point vacancies.
| Original language | English |
|---|---|
| Pages (from-to) | 14356-14362 |
| Number of pages | 7 |
| Journal | Journal of Physical Chemistry C |
| Volume | 113 |
| Issue number | 32 |
| DOIs | |
| Publication status | Published - 2009 Aug 13 |
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ASJC Scopus subject areas
- Physical and Theoretical Chemistry
- Electronic, Optical and Magnetic Materials
- Surfaces, Coatings and Films
- Energy(all)
Cite this
STM study of surface species formed by methanol adsorption on stoichiometric and reduced ZnO(1010) surfaces. / Shao, Xiang; Fukui, Ken Ichi; Kondoh, Hiroshi; Shionoya, Mitsuhiko; Iwasawa, Yasuhiro.
In: Journal of Physical Chemistry C, Vol. 113, No. 32, 13.08.2009, p. 14356-14362.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - STM study of surface species formed by methanol adsorption on stoichiometric and reduced ZnO(1010) surfaces
AU - Shao, Xiang
AU - Fukui, Ken Ichi
AU - Kondoh, Hiroshi
AU - Shionoya, Mitsuhiko
AU - Iwasawa, Yasuhiro
PY - 2009/8/13
Y1 - 2009/8/13
N2 - Methanol adsorption on the stoichiometric and slightly reduced ZnO(1010) surfaces has been studied by scanning tunneling microscopy (STM). On the stoichiometric surface it was found that adsorbed methanol formed two types of ordered structures by dissociative adsorption in different modes, one of which was a dominant two-dimensional island structure residing on surface zinc atom rows, while the other was a linear chain structure residing between two surface zinc rows. In addition, a mobile phase of molecularly adsorbed methanol was deduced occupying the areas aside the ordered domains and keeping in equilibrium with the island structure. In contrast to the stoichiometric surface, on the slightly reduced surface, only the linear chain structure was observed as an ordered phase, accompanied by an unusual type of line defects. The STM observations indicated that the drastic change of surface properties occurred on the whole surface not at the specific sites such as point vacancies.
AB - Methanol adsorption on the stoichiometric and slightly reduced ZnO(1010) surfaces has been studied by scanning tunneling microscopy (STM). On the stoichiometric surface it was found that adsorbed methanol formed two types of ordered structures by dissociative adsorption in different modes, one of which was a dominant two-dimensional island structure residing on surface zinc atom rows, while the other was a linear chain structure residing between two surface zinc rows. In addition, a mobile phase of molecularly adsorbed methanol was deduced occupying the areas aside the ordered domains and keeping in equilibrium with the island structure. In contrast to the stoichiometric surface, on the slightly reduced surface, only the linear chain structure was observed as an ordered phase, accompanied by an unusual type of line defects. The STM observations indicated that the drastic change of surface properties occurred on the whole surface not at the specific sites such as point vacancies.
UR - http://www.scopus.com/inward/record.url?scp=68749088410&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=68749088410&partnerID=8YFLogxK
U2 - 10.1021/jp9022597
DO - 10.1021/jp9022597
M3 - Article
AN - SCOPUS:68749088410
VL - 113
SP - 14356
EP - 14362
JO - Journal of Physical Chemistry C
JF - Journal of Physical Chemistry C
SN - 1932-7447
IS - 32
ER -