A collision induced reaction: CO2 production on O-2 and CO covered Pt(111)

被引：47

作者：

Akerlund, C ^{[1
]}

Zoric, I ^{[1
]}

Kasemo, B ^{[1
]}

机构：

[1] GOTHENBURG UNIV,S-41296 GOTHENBURG,SWEDEN

来源：

JOURNAL OF CHEMICAL PHYSICS | 1996年 / 104卷 / 18期

关键词：

D O I：

10.1063/1.471817

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：

Impingement of energetic Xe atoms on a coadsorbed CO+O-2 monolayer on Pt(111) induces two concurrent collision-induced reaction channels: (a) formation of CO2 and (b) desorption of O-2 below the surface temperature where any thermal reaction occurs. We report measurements of the initial reaction probability, its energy dependence and the reaction kinetics. We also discuss the possible reaction mechanism for the collision-induced CO2 oxidation reaction. (C) 1996 American Institute of Physics.

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页码：7359 / 7362

页数：4

相关论文

共 18 条

[1] STICKING AND DISPLACEMENT CHANNELS IN THE COG+O-2/PT(111) REACTION [J].

AKERLUND, C ;

ZORIC, I ;

HALL, J ;

KASEMO, B .

SURFACE SCIENCE, 1994, 316 (03) :L1099-L1104

[2] CO-2 PRODUCT VELOCITY DISTRIBUTIONS FOR CO OXIDATION ON PLATINUM [J].

BECKER, CA ;

COWIN, JP ;

WHARTON, L ;

AUERBACH, DJ .

JOURNAL OF CHEMICAL PHYSICS, 1977, 67 (07) :3394-3395

[3] VIBRATIONAL-EXCITATION IN THE CO2 PRODUCT OF THE OXIDATION OF CO ON PLATINUM - COVERAGE DEPENDENCE AND IMPLICATIONS ON REACTION DYNAMICS [J].

BROWN, LS ;

BERNASEK, SL .

JOURNAL OF CHEMICAL PHYSICS, 1985, 82 (04) :2110-2117

[4]

Engel T., 1979, ADV CATALYSIS VOLUME, V28, P1, DOI DOI 10.1016/S0360-0564(08)60133-9

[5]

ENGEL T, 1982, CHEMP HYSICS SOLID S

[6] OXYGEN INTERACTIONS WITH THE PT(111) SURFACE [J].

GLAND, JL ;

SEXTON, BA ;

FISHER, GB .

SURFACE SCIENCE, 1980, 95 (2-3) :587-602

[7] MEASUREMENT OF POSITION-DEPENDENT DETECTION EFFICIENCIES FOR 2 QUADRUPOLE MASS SPECTROMETERS WITH ELECTRON-IMPACT ION SOURCES [J].

HALL, J ;

ZORIC, I ;

RINNEMO, M ;

KASEMO, B .

REVIEW OF SCIENTIFIC INSTRUMENTS, 1991, 62 (12) :3004-3009

[8]

KULGINOV D, UNPUB

[9] THE DYNAMICS OF CO OXIDATION ON PT DEDUCED FROM TRANSLATIONAL, ROTATIONAL AND VIBRATIONAL-EXCITATION IN PRODUCT CO2 [J].

MANTELL, DA ;

KUNIMORI, K ;

RYALI, SB ;

HALLER, GL ;

FENN, JB .

SURFACE SCIENCE, 1986, 172 (02) :281-302

[10] THE MECHANISM OF THE CO2 FORMATION ON PT(111) AND POLYCRYSTALLINE SURFACES AT LOW-TEMPERATURES [J].

MATSUSHIMA, T .

SURFACE SCIENCE, 1983, 127 (03) :403-423