Atomically dispersed Cu species on a TiO2(110) surface precovered with acetic anhydride

被引：9

作者：

Chun, Wang-Jae ^{[1
,2
,3
]}

Koike, Yuichiro ^{[1
,2
,4
]}

Ashima, Hidenori ^{[1
,2
]}

Kinoshita, Kumiko ^{[1
,2
,5
]}

Ijima, Kaoru ^{[6
]}

Fujikawa, Keisuke ^{[1
,2
,5
]}

Suzuki, Shushi ^{[1
,2
]}

Nomura, Masaharu ^{[4
]}

Iwasawa, Yasuhiro ^{[7
]}

Asakura, Kiyotaka ^{[1
,2
,5
]}

机构：

[1] Hokkaido Univ, Precise Surface Design Cluster Grp, Sapporo, Hokkaido 0010021, Japan

[2] Hokkaido Univ, Act Struct Surface Chem Div, Catalysis Res Ctr, Sapporo, Hokkaido 0010021, Japan

[3] Int Christian Univ, Dept Chem, Tokyo 1818585, Japan

[4] High Energy Accelerator Res Org, Photon Factory, Inst Mat Struct Sci, Tsukuba, Ibaraki 3050801, Japan

[5] Hokkaido Univ, Dept Quantum Sci & Engn, Fac Engn, Sapporo, Hokkaido 0010021, Japan

[6] Univ Yamanashi, Dept Elect Engn, Yamanashi 4008510, Japan

[7] Univ Tokyo, Dept Chem, Grad Sch Sci, Tokyo 1130081, Japan

来源：

CHEMICAL PHYSICS LETTERS | 2009年 / 470卷 / 1-3期

基金：

日本科学技术振兴机构;

关键词：

TIO2; 110; SURFACE; INDUCED DISSOCIATION; SIZE DISTRIBUTIONS; COPPER ISLANDS; GROWTH; ADSORPTION; ATOMS;

D O I：

10.1016/j.cplett.2009.01.030

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：

Preparing highly dispersed monoatomic Cu species on a TiO2(110) surface was successfully achieved on a TiO2(110) surface that had been precovered with an acetic anhydride layer. Polarization-dependent total reflection fluorescence X-ray absorption. ne structure (PTRF-XAFS) spectra indicated that the three-dimensional structures of the monoatomic Cu species were stabilized on the surface by two 0.196-nm-long C-O bonds, namely, Cu-O (acetate) and Cu-O (bridging surface oxygen) bonds. The Cu species diffusion was effectively blocked by the acetate species with its molecular plane perpendicular to the [001] diffusion direction created by the dissociative adsorption of acetic anhydride. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：99 / 102

页数：4

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