Unusual adsorption state of CO on Cs-covered Ru(001)

Hiroshi Kondoh, H. Nozoye

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Adsorption of CO on Cs-precovered Ru(001) with one-monolayer coverage (θCs = 0.33) has been investigated by use of electron energy loss spectroscopy (EELS), temperature-programmed desorption (TPD), and low-energy electron diffraction (LEED). The C-O stretching mode of the adsorbed CO does not appear in the specular mode of EELS but clearly appears in the off-specular mode at an unusually low frequency of 1245 cm-1. This unusual adsorption state has been interpreted in terms of an inclined or a side-on adsorption geometry of CO and formation of a double-layer structure (Cs/Cs + CO/Ru(001)) where the CO dipole is screened by the second-layer Cs.

Original languageEnglish
Pages (from-to)390-392
Number of pages3
JournalJournal of Physical Chemistry
Volume98
Issue number2
Publication statusPublished - 1994
Externally publishedYes

Fingerprint

Carbon Monoxide
Electron energy loss spectroscopy
Adsorption
adsorption
energy dissipation
electron energy
Low energy electron diffraction
Temperature programmed desorption
spectroscopy
Stretching
Monolayers
electron diffraction
desorption
dipoles
low frequencies
Geometry
geometry
temperature
energy

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

Unusual adsorption state of CO on Cs-covered Ru(001). / Kondoh, Hiroshi; Nozoye, H.

In: Journal of Physical Chemistry, Vol. 98, No. 2, 1994, p. 390-392.

Research output: Contribution to journalArticle

@article{8439888208754498a6f6287b84069788,
title = "Unusual adsorption state of CO on Cs-covered Ru(001)",
abstract = "Adsorption of CO on Cs-precovered Ru(001) with one-monolayer coverage (θCs = 0.33) has been investigated by use of electron energy loss spectroscopy (EELS), temperature-programmed desorption (TPD), and low-energy electron diffraction (LEED). The C-O stretching mode of the adsorbed CO does not appear in the specular mode of EELS but clearly appears in the off-specular mode at an unusually low frequency of 1245 cm-1. This unusual adsorption state has been interpreted in terms of an inclined or a side-on adsorption geometry of CO and formation of a double-layer structure (Cs/Cs + CO/Ru(001)) where the CO dipole is screened by the second-layer Cs.",
author = "Hiroshi Kondoh and H. Nozoye",
year = "1994",
language = "English",
volume = "98",
pages = "390--392",
journal = "Journal of Physical Chemistry",
issn = "0022-3654",
publisher = "American Chemical Society",
number = "2",

}

TY - JOUR

T1 - Unusual adsorption state of CO on Cs-covered Ru(001)

AU - Kondoh, Hiroshi

AU - Nozoye, H.

PY - 1994

Y1 - 1994

N2 - Adsorption of CO on Cs-precovered Ru(001) with one-monolayer coverage (θCs = 0.33) has been investigated by use of electron energy loss spectroscopy (EELS), temperature-programmed desorption (TPD), and low-energy electron diffraction (LEED). The C-O stretching mode of the adsorbed CO does not appear in the specular mode of EELS but clearly appears in the off-specular mode at an unusually low frequency of 1245 cm-1. This unusual adsorption state has been interpreted in terms of an inclined or a side-on adsorption geometry of CO and formation of a double-layer structure (Cs/Cs + CO/Ru(001)) where the CO dipole is screened by the second-layer Cs.

AB - Adsorption of CO on Cs-precovered Ru(001) with one-monolayer coverage (θCs = 0.33) has been investigated by use of electron energy loss spectroscopy (EELS), temperature-programmed desorption (TPD), and low-energy electron diffraction (LEED). The C-O stretching mode of the adsorbed CO does not appear in the specular mode of EELS but clearly appears in the off-specular mode at an unusually low frequency of 1245 cm-1. This unusual adsorption state has been interpreted in terms of an inclined or a side-on adsorption geometry of CO and formation of a double-layer structure (Cs/Cs + CO/Ru(001)) where the CO dipole is screened by the second-layer Cs.

UR - http://www.scopus.com/inward/record.url?scp=0004506139&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0004506139&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0004506139

VL - 98

SP - 390

EP - 392

JO - Journal of Physical Chemistry

JF - Journal of Physical Chemistry

SN - 0022-3654

IS - 2

ER -