Interaction of gold clusters with color centers on MgO(001) films

被引：138

作者：

Sterrer, M

Yulikov, M

Fischbach, E

Heyde, M

Rust, HP

Pacchioni, G

Risse, T

Freund, HJ

机构：

[1] Max Planck Soc, Fritz Haber Inst, Dept Chem Phys, D-14195 Berlin, Germany

[2] Univ Milan, Dipartimento Sci Mat, I-20125 Milan, Italy

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2006年 / 45卷 / 16期

关键词：

color centers; EPR spectroscopy; gold; IR spectroscopy; magnesium oxide;

D O I：

10.1002/anie.200504443

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Pricking the surface: STM and EPR spectroscopy demonstrate the presence of color centers on thin MgO(001) films and their interaction with Au atoms. These systems are used to calibrate the IR stretching frequencies of CO bound to Au clusters. Clusters on regular MgO(001) terrace sites remain neutral while nucleation at color centers results in a charge transfer from the surface to the Au cluster. (Figure Presented) © 2006 Wiley-VCH Verlag GmbH & Co. KGaA.

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收藏

页码：2630 / 2632

页数：3

相关论文

共 23 条

[11] Catalysis - Gold rush [J].

Haruta, M .

NATURE, 2005, 437 (7062) :1098-1099

[12] Double quartz tuning fork sensor for low temperature atomic force and scanning tunneling microscopy [J].

Heyde, M ;

Kulawik, M ;

Rust, HP ;

Freund, HJ .

REVIEW OF SCIENTIFIC INSTRUMENTS, 2004, 75 (07) :2446-2450

[13] Nucleation and growth kinetics of gold nanoparticles on MgO(100) studied by UHV-AFM [J].

Hojrup-Hansen, K ;

Ferrero, S ;

Henry, CR .

APPLIED SURFACE SCIENCE, 2004, 226 (1-3) :167-172

[14] Surface chemistry of catalysis by gold [J].

Meyer, R ;

Lemire, C ;

Shaikhutdinov, SK ;

Freund, H .

GOLD BULLETIN, 2004, 37 (1-2) :72-+

[15] Charging of metal atoms on ultrathin MgO/Mo(100) films [J].

Pacchioni, G ;

Giordano, L ;

Baistrocchi, M .

PHYSICAL REVIEW LETTERS, 2005, 94 (22)

[16] Characterization of a model Ziegler-Natta catalyst for ethylene polymerization [J].

Schmidt, J ;

Risse, T ;

Hamann, H ;

Freund, HJ .

JOURNAL OF CHEMICAL PHYSICS, 2002, 116 (24) :10861-10868

[17] When the reporter induces the effect:: Unusual IR spectra of CO on Au1/MgO(001)/Mo(001) [J].

Sterrer, M ;

Yulikov, M ;

Risse, T ;

Freund, HJ ;

Carrasco, J ;

Illas, F ;

Di Valentin, C ;

Giordano, L ;

Pacchioni, G .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2006, 45 (16) :2633-2635

[18] Geometric characterization of a singly charged oxygen vacancy on a single-crystalline MgO(001) film by electron paramagnetic resonance spectroscopy [J].

Sterrer, M ;

Fischbach, E ;

Risse, T ;

Freund, HJ .

PHYSICAL REVIEW LETTERS, 2005, 94 (18)

[19] Low temperature infrared spectra of CO adsorbed on the surface of MgO(001) thin films [J].

Sterrer, M ;

Risse, T ;

Freund, HJ .

SURFACE SCIENCE, 2005, 596 (1-3) :222-228

[20]

STERRER M, 2006, ANGEW CHEM, V118, P2695, DOI DOI 10.1002/ANGE.200504473