Site-switching for CO2 formation and structural transformation of (1×2)⇄(1×1) in steady-state CO oxidation on Pt (1 1 0)

Md Golam Moula; Asht B.P. Mishra; Izabela Rzeźnicka; Mikhail U. Kislyuk; Suwen Liu; Yuichi Ohno; Tatsuo Matsushima

doi:10.1016/S0009-2614(01)00495-X

Site-switching for CO₂ formation and structural transformation of (1×2)⇄(1×1) in steady-state CO oxidation on Pt (1 1 0)

Md Golam Moula, Asht B.P. Mishra, Izabela Rzeźnicka, Mikhail U. Kislyuk, Suwen Liu, Yuichi Ohno, Tatsuo Matsushima

Research output: Contribution to journal › Article › peer-review

Abstract

The angular and velocity distributions of desorbing product CO₂ were studied in steady-state CO oxidation on Pt(110) by means of cross-correlation time-of-flight techniques. In the active region where the reaction was first order in CO, the angular distribution in the (001) plane was split into two-directional lobes collimated at ±25° from the surface-normal direction, indicating the CO₂ formation on inclined (111) terraces. The translational temperature was maximized at these collimation angles, reaching about 1820 K. On the other hand, in a limited range of the inhibited region, where CO retarded the reaction, CO₂ desorption sharply collimated along the surface-normal direction, suggesting CO₂ formation on flat (1×1) domains.

Original language	English
Pages (from-to)	225-231
Number of pages	7
Journal	Chemical Physics Letters
Volume	341
Issue number	3-4
DOIs	https://doi.org/10.1016/S0009-2614(01)00495-X
Publication status	Published - 2001 Jun 22
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy(all)
Physical and Theoretical Chemistry

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10.1016/S0009-2614(01)00495-X

Cite this

@article{67f197dd6a644a1482847c4f294b9ee3,

title = "Site-switching for CO2 formation and structural transformation of (1×2)⇄(1×1) in steady-state CO oxidation on Pt (1 1 0)",

abstract = "The angular and velocity distributions of desorbing product CO2 were studied in steady-state CO oxidation on Pt(110) by means of cross-correlation time-of-flight techniques. In the active region where the reaction was first order in CO, the angular distribution in the (001) plane was split into two-directional lobes collimated at ±25° from the surface-normal direction, indicating the CO2 formation on inclined (111) terraces. The translational temperature was maximized at these collimation angles, reaching about 1820 K. On the other hand, in a limited range of the inhibited region, where CO retarded the reaction, CO2 desorption sharply collimated along the surface-normal direction, suggesting CO2 formation on flat (1×1) domains.",

author = "{Golam Moula}, Md and Mishra, {Asht B.P.} and Izabela Rze{\'z}nicka and Kislyuk, {Mikhail U.} and Suwen Liu and Yuichi Ohno and Tatsuo Matsushima",

year = "2001",

month = jun,

day = "22",

doi = "10.1016/S0009-2614(01)00495-X",

language = "English",

volume = "341",

pages = "225--231",

journal = "Chemical Physics Letters",

issn = "0009-2614",

publisher = "Elsevier",

number = "3-4",

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TY - JOUR

T1 - Site-switching for CO2 formation and structural transformation of (1×2)⇄(1×1) in steady-state CO oxidation on Pt (1 1 0)

AU - Golam Moula, Md

AU - Mishra, Asht B.P.

AU - Rzeźnicka, Izabela

AU - Kislyuk, Mikhail U.

AU - Liu, Suwen

AU - Ohno, Yuichi

AU - Matsushima, Tatsuo

PY - 2001/6/22

Y1 - 2001/6/22

N2 - The angular and velocity distributions of desorbing product CO2 were studied in steady-state CO oxidation on Pt(110) by means of cross-correlation time-of-flight techniques. In the active region where the reaction was first order in CO, the angular distribution in the (001) plane was split into two-directional lobes collimated at ±25° from the surface-normal direction, indicating the CO2 formation on inclined (111) terraces. The translational temperature was maximized at these collimation angles, reaching about 1820 K. On the other hand, in a limited range of the inhibited region, where CO retarded the reaction, CO2 desorption sharply collimated along the surface-normal direction, suggesting CO2 formation on flat (1×1) domains.

AB - The angular and velocity distributions of desorbing product CO2 were studied in steady-state CO oxidation on Pt(110) by means of cross-correlation time-of-flight techniques. In the active region where the reaction was first order in CO, the angular distribution in the (001) plane was split into two-directional lobes collimated at ±25° from the surface-normal direction, indicating the CO2 formation on inclined (111) terraces. The translational temperature was maximized at these collimation angles, reaching about 1820 K. On the other hand, in a limited range of the inhibited region, where CO retarded the reaction, CO2 desorption sharply collimated along the surface-normal direction, suggesting CO2 formation on flat (1×1) domains.

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U2 - 10.1016/S0009-2614(01)00495-X

DO - 10.1016/S0009-2614(01)00495-X

M3 - Article

AN - SCOPUS:0041876217

SN - 0009-2614

VL - 341

SP - 225

EP - 231

JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 3-4

ER -

Site-switching for CO₂ formation and structural transformation of (1×2)⇄(1×1) in steady-state CO oxidation on Pt (1 1 0)

Abstract

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