Atomic-Scale Surface Structures of TiO2(110) Determined by Scanning Tunneling Microscopy: A New Surface-Limited Phase of Titanium Oxide
作者： Hiroshi Onishi , Ken-ichi Fukui , Yasuhiro Iwasawa
DOI: 10.1246/BCSJ.68.2447
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摘要: The structure transformation of a TiO2(110) surface was observed at atomic-scale resolution by scanning tunneling microscopy (STM) and low-energy electron diffraction (LEED). Irregular corrugations on an argon-bombarded crystallized to stacked (1 × 1) terraces vacuum annealing 600—800 K. grew in dimension be as large 30 nm2 900 unoccupied states localized individual Ti4+ ions were resolved terrace. position the probed imaging adsorbed formate ions. Annealing higher temperatures resulted formation wide row comprising double strands. Imaging used grade possible models probing Ti exposed surface; thereby, added Ti2O3 model, which is new surface-limited phase titanium oxide consisting Ti3+ optimum six-fold coordination, concluded for double-strand structure. These results demonst...
csj.jp参考文章(48)
H. C. Galloway, J. J. Benítez, M. Salmeron, Growth of FeOx on Pt(111) studied by scanning tunneling microscopy Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films. ,vol. 12, pp. 2302- 2307 ,(1994) , 10.1116/1.579203
Hiroshi Onishi, Yasuhiro Iwasawa, STM-imaging of formate intermediates adsorbed on a TiO2(110) surface Chemical Physics Letters. ,vol. 226, pp. 111- 114 ,(1994) , 10.1016/0009-2614(94)00712-8
K. S. Kim, Mark A. Barteau, Structural dependence of the selectivity of formic acid decomposition on faceted titania (001) surfaces Langmuir. ,vol. 6, pp. 1485- 1488 ,(1990) , 10.1021/LA00099A009
S. Akhter, K. Lui, Harold H. Kung, Comparison of the chemical properties of the zinc-polar, the oxygen-polar, and the nonpolar surfaces of ZnO The Journal of Physical Chemistry. ,vol. 89, pp. 1958- 1964 ,(1985) , 10.1021/J100256A029
T. A. Land, T. Michely, R. J. Behm, J. C. Hemminger, G. Comsa, Direct observation of surface reactions by scanning tunneling microscopy: Ethylene→ethylidyne→carbon particles→graphite on Pt(111) Journal of Chemical Physics. ,vol. 97, pp. 6774- 6783 ,(1992) , 10.1063/1.463655
Robert G. Breckenridge, William R. Hosler, Electrical properties of titanium dioxide semiconductors electrical insulation conference. ,vol. 91, pp. 793- 802 ,(1950) , 10.1103/PHYSREV.91.793
Richard L. Kurtz, Stimulated desorption studies of defect structures on TiO2 Surface Science. ,vol. 177, pp. 526- 552 ,(1986) , 10.1016/0039-6028(86)90031-2
P. Zschack, J.B. Cohen, Y.W. Chung, Structure of the TiO2(100) 1 × 3 surface determined by glancing angle X-ray diffraction and low energy electron diffraction Surface Science. ,vol. 262, pp. 395- 408 ,(1992) , 10.1016/0039-6028(92)90136-T
Y. Kuk, P. J. Silverman, H. Q. Nguyen, Study of metal surfaces by scanning tunneling microscopy with field ion microscopy Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films. ,vol. 6, pp. 524- 528 ,(1988) , 10.1116/1.575373
P. Kofstad, Note on the defect structure of rutile (TiO2) Journal of The Less Common Metals. ,vol. 13, pp. 635- 638 ,(1967) , 10.1016/0022-5088(67)90111-7