Observation of TiO2 microcrystallite powder by scanning tunneling microscope

被引：7

作者：

Asari, E ^{[1
]}

Souda, R ^{[1
]}

机构：

[1] Natl Inst Res Inorgan Mat, Tsukuba, Ibaraki 3050044, Japan

来源：

SURFACE SCIENCE | 2001年 / 486卷 / 03期

关键词：

surface structure; morphology; roughness; and topography; titanium oxide; polycrystalline surfaces; scanning tunneling microscopy; scanning electron microscopy (SEM);

D O I：

10.1016/S0039-6028(01)00987-6

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The surface structure of microcrystallites of practical photocatalyst was observed in atomic scale by scanning tunneling microscope (STM). We found that the structure of microcrystallites take variety of shapes and have many steps and point defects on their solid surfaces. The attribute of some microcrystallites could be distinguished between anatase and ruble by comparing the interval of the atomic rows on the surfaces. This is the first time that the obvious atomic rows were observed on anatase surface by STM. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：203 / 207

页数：5

共 13 条

[1] Transitional structures of the TiO2(110) surface from p(1 X 1) to p(1 X 2) studied by impact collision ion scattering spectroscopy [J].

Asari, E ;

Hayami, W ;

Souda, R .

APPLIED SURFACE SCIENCE, 2000, 167 (3-4) :169-176

[2] TiO2(110)-p(1x1) surface structure analyzed by impact-collision ion-scattering spectroscopy [J].

Asari, E ;

Suzuki, T ;

Kawanowa, H ;

Ahn, J ;

Hayami, W ;

Aizawa, T ;

Souda, R .

PHYSICAL REVIEW B, 2000, 61 (08) :5679-5682

[3] Two (1 x 2) reconstructions of TiO2(110):: Surface rearrangement and reactivity studied using elevated temperature scanning tunneling microscopy [J].

Bennett, RA ;

Stone, P ;

Price, NJ ;

Bowker, M .

PHYSICAL REVIEW LETTERS, 1999, 82 (19) :3831-3834

[4] Intrinsic defects on a TiO2(110)(1x1) surface and their reaction with oxygen:: a scanning tunneling microscopy study [J].

Diebold, U ;

Lehman, J ;

Mahmoud, T ;

Kuhn, M ;

Leonardelli, G ;

Hebenstreit, W ;

Schmid, M ;

Varga, P .

SURFACE SCIENCE, 1998, 411 (1-2) :137-153

[5] Evidence for the tunneling site on transition-metal oxides: TiO2(110) [J].

Diebold, U ;

Anderson, JF ;

Ng, KO ;

Vanderbilt, D .

PHYSICAL REVIEW LETTERS, 1996, 77 (07) :1322-1325

[6] ELECTROCHEMICAL PHOTOLYSIS OF WATER AT A SEMICONDUCTOR ELECTRODE [J].

FUJISHIMA, A ;

HONDA, K .

NATURE, 1972, 238 (5358) :37-+

[7] COMPARISON OF PHOTOCATALYTIC ACTIVITY OF SOL-GEL TIO2 AND P25 TIO2 PARTICLES SUPPORTED ON COMMERCIAL FIBERGLASS FABRIC [J].

MIKULA, M ;

BREZOVA, V ;

CEPPAN, M ;

PACH, L ;

KARPINSKY, L .

JOURNAL OF MATERIALS SCIENCE LETTERS, 1995, 14 (09) :615-616

[8] EFFECT OF STOICHIOMETRY ON THE STRUCTURE OF TIO2(110) [J].

MURRAY, PW ;

CONDON, NG ;

THORNTON, G .

PHYSICAL REVIEW B, 1995, 51 (16) :10989-10997

[9] Structure, optical absorption and electronic states of Zn+ ion implanted and subsequently annealed sol-gel anatase TiO2 films [J].

Oyoshi, K ;

Sumi, N ;

Umezu, I ;

Souda, R ;

Yamazaki, A ;

Haneda, H ;

Mitsuhashi, T .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2000, 168 (02) :221-228

[10] Added row model of TiO2(110)1x2 [J].

Pang, CL ;

Haycock, SA ;

Raza, H ;

Murray, PW ;

Thornton, G ;

Gulseren, O ;

James, R ;

Bullett, DW .

PHYSICAL REVIEW B, 1998, 58 (03) :1586-1589

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