CO oxidation on Pd(1 1 1), Pt(1 1 1), and Rh(1 1 1) surfaces studied by infrared chemiluminescence spectroscopy

Kenji Nakao; Osamu Watanabe; Toshiaki Sasaki; Shin ichi Ito; Keiichi Tomishige; Kimio Kunimori

doi:10.1016/j.susc.2007.04.015

CO oxidation on Pd(1 1 1), Pt(1 1 1), and Rh(1 1 1) surfaces studied by infrared chemiluminescence spectroscopy

Kenji Nakao, Osamu Watanabe, Toshiaki Sasaki, Shin ichi Ito, Keiichi Tomishige, Kimio Kunimori

ENG - Applied Chemistry

University of Tsukuba

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

18 Citations (Scopus)

Abstract

The infrared (IR) chemiluminescence studies of CO₂ formed during steady-state CO oxidation over Pd(1 1 1), Pt(1 1 1), and Rh(1 1 1) surfaces were carried out. Analysis of their emission spectra indicates that the order of the average vibrational temperature (T_V^AV) values of CO₂ formed during CO oxidation was as follows: Pd(1 1 1) > Pt(1 1 1) > Rh(1 1 1), and the order is coincident with the potential energy in the transition state expected by the theoretical calculations. Furthermore, it is suggested that the bending vibrational temperature (T_V^B) can also be influenced by the angle of O-C-O (∠_OCO) of the activated complex in the transition state, which has also been proposed by the theoretical calculations.

Original language	English
Pages (from-to)	3796-3800
Number of pages	5
Journal	Surface Science
Volume	601
Issue number	18
DOIs	https://doi.org/10.1016/j.susc.2007.04.015
Publication status	Published - 2007 Sept 15

Keywords

Carbon dioxide
Carbon monoxide
CO oxidation
IR chemiluminescence
Noble metal

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10.1016/j.susc.2007.04.015

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title = "CO oxidation on Pd(1 1 1), Pt(1 1 1), and Rh(1 1 1) surfaces studied by infrared chemiluminescence spectroscopy",

abstract = "The infrared (IR) chemiluminescence studies of CO2 formed during steady-state CO oxidation over Pd(1 1 1), Pt(1 1 1), and Rh(1 1 1) surfaces were carried out. Analysis of their emission spectra indicates that the order of the average vibrational temperature (TVAV) values of CO2 formed during CO oxidation was as follows: Pd(1 1 1) > Pt(1 1 1) > Rh(1 1 1), and the order is coincident with the potential energy in the transition state expected by the theoretical calculations. Furthermore, it is suggested that the bending vibrational temperature (TVB) can also be influenced by the angle of O-C-O (∠OCO) of the activated complex in the transition state, which has also been proposed by the theoretical calculations.",

keywords = "Carbon dioxide, Carbon monoxide, CO oxidation, IR chemiluminescence, Noble metal",

author = "Kenji Nakao and Osamu Watanabe and Toshiaki Sasaki and Ito, {Shin ichi} and Keiichi Tomishige and Kimio Kunimori",

note = "Funding Information: This work was supported by the 21st Century Center of Excellence (COE) Program of the Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan. K. Nakao is grateful for his Research Fellowship from the Japan Society for Promotion of Science (JSPS) for Young Scientists.",

year = "2007",

month = sep,

day = "15",

doi = "10.1016/j.susc.2007.04.015",

language = "English",

volume = "601",

pages = "3796--3800",

journal = "Surface Science",

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TY - JOUR

T1 - CO oxidation on Pd(1 1 1), Pt(1 1 1), and Rh(1 1 1) surfaces studied by infrared chemiluminescence spectroscopy

AU - Nakao, Kenji

AU - Watanabe, Osamu

AU - Sasaki, Toshiaki

AU - Ito, Shin ichi

AU - Tomishige, Keiichi

AU - Kunimori, Kimio

N1 - Funding Information: This work was supported by the 21st Century Center of Excellence (COE) Program of the Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan. K. Nakao is grateful for his Research Fellowship from the Japan Society for Promotion of Science (JSPS) for Young Scientists.

PY - 2007/9/15

Y1 - 2007/9/15

N2 - The infrared (IR) chemiluminescence studies of CO2 formed during steady-state CO oxidation over Pd(1 1 1), Pt(1 1 1), and Rh(1 1 1) surfaces were carried out. Analysis of their emission spectra indicates that the order of the average vibrational temperature (TVAV) values of CO2 formed during CO oxidation was as follows: Pd(1 1 1) > Pt(1 1 1) > Rh(1 1 1), and the order is coincident with the potential energy in the transition state expected by the theoretical calculations. Furthermore, it is suggested that the bending vibrational temperature (TVB) can also be influenced by the angle of O-C-O (∠OCO) of the activated complex in the transition state, which has also been proposed by the theoretical calculations.

AB - The infrared (IR) chemiluminescence studies of CO2 formed during steady-state CO oxidation over Pd(1 1 1), Pt(1 1 1), and Rh(1 1 1) surfaces were carried out. Analysis of their emission spectra indicates that the order of the average vibrational temperature (TVAV) values of CO2 formed during CO oxidation was as follows: Pd(1 1 1) > Pt(1 1 1) > Rh(1 1 1), and the order is coincident with the potential energy in the transition state expected by the theoretical calculations. Furthermore, it is suggested that the bending vibrational temperature (TVB) can also be influenced by the angle of O-C-O (∠OCO) of the activated complex in the transition state, which has also been proposed by the theoretical calculations.

KW - Carbon dioxide

KW - Carbon monoxide

KW - CO oxidation

KW - IR chemiluminescence

KW - Noble metal

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U2 - 10.1016/j.susc.2007.04.015

DO - 10.1016/j.susc.2007.04.015

M3 - Article

AN - SCOPUS:34548616886

SN - 0039-6028

VL - 601

SP - 3796

EP - 3800

JO - Surface Science

JF - Surface Science

IS - 18

ER -

CO oxidation on Pd(1 1 1), Pt(1 1 1), and Rh(1 1 1) surfaces studied by infrared chemiluminescence spectroscopy

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Keywords

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