Temperature-jump STM observation of reaction intermediate on metal-oxide surfaces

被引：49

作者：

Onishi, H ^{[1
]}

Yamaguchi, Y ^{[1
]}

Fukui, K ^{[1
]}

Iwasawa, Y ^{[1
]}

机构：

[1] UNIV TOKYO,GRAD SCH SCI,DEPT CHEM,BUNKYO KU,TOKYO 113,JAPAN

来源：

JOURNAL OF PHYSICAL CHEMISTRY | 1996年 / 100卷 / 23期

关键词：

D O I：

10.1021/jp960861n

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：

We have succeeded in monitoring the reaction of an acetate-covered TiO2(110) surface by scanning tunneling microscopy (STM) operated in a temperature-jump mode. Acetate ions were individually resolved at high temperatures, where they started decomposing, due to restricted mobility on the metal-oxide surface. The microscopic kinetics of the decomposition reaction determined by molecular counting in sequential STM images agreed with the macroscopic rate law deduced from a thermal desorption study. The present study demonstrated the ability of STM for monitoring reaction of ionic intermediates liberated on metal-oxide surfaces.

引用

页码：9582 / 9584

页数：3

共 17 条

[1]

Gates BC, 1979, Chemistry of Catalytic Processes

[2]

Henrich V. E. C. P. A., 1994, SURFACE SCI METAL OX

[3] STRUCTURAL DEPENDENCE OF THE SELECTIVITY OF FORMIC-ACID DECOMPOSITION ON FACETED TIO2 (001) SURFACES [J].

KIM, KS ;

BARTEAU, MA .

LANGMUIR, 1990, 6 (09) :1485-1488

[4] STRUCTURE AND COMPOSITION REQUIREMENTS FOR DEOXYGENATION, DEHYDRATION, AND KETONIZATION REACTIONS OF CARBOXYLIC-ACIDS ON TIO2(001) SINGLE-CRYSTAL SURFACES [J].

KIM, KS ;

BARTEAU, MA .

JOURNAL OF CATALYSIS, 1990, 125 (02) :353-375

[5] DIRECT OBSERVATION OF SURFACE-REACTIONS BY SCANNING TUNNELING MICROSCOPY - ETHYLENE-]ETHYLIDYNE-]CARBON PARTICLES-]GRAPHITE ON PT(111) [J].

LAND, TA ;

MICHELY, T ;

BEHM, RJ ;

HEMMINGER, JC ;

COMSA, G .

JOURNAL OF CHEMICAL PHYSICS, 1992, 97 (09) :6774-6783

[6] ONE-DIMENSIONAL REACTIVITY IN CATALYSIS STUDIED WITH THE SCANNING TUNNELING MICROSCOPE [J].

LEIBSLE, FM ;

MURRAY, PW ;

FRANCIS, SM ;

THORNTON, G ;

BOWKER, M .

NATURE, 1993, 363 (6431) :706-709

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

MURRAY, PW ;

CONDON, NG ;

THORNTON, G .

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

[8]

NOSHI H, 1996, PHYS REV LETT, V76, P791

[9] SCANNING-TUNNELING-MICROSCOPY STUDY OF THE ATOMIC-SCALE STRUCTURE OF TIO2(110)-(1X1) [J].

NOVAK, D ;

GARFUNKEL, E ;

GUSTAFSSON, T .

PHYSICAL REVIEW B, 1994, 50 (07) :5000-5003

[10] OBSERVATION OF ANISOTROPIC MIGRATION OF ADSORBED ORGANIC-SPECIES USING NANOSCALE PATCHWORKS FABRICATED WITH A SCANNING TUNNELING MICROSCOPE [J].

ONISHI, H ;

IWASAWA, Y .

LANGMUIR, 1994, 10 (12) :4414-4416

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