Adsorption of co on (001) ruthenium at temperatures ≥ 300 k

Theodore E. Madey; Dietrich Menzel

doi:10.7567/JJAPS.2S2.229

Adsorption of co on (001) ruthenium at temperatures ≥ 300 k

Theodore E. Madey
, Dietrich Menzel

Chair of Experimental Physics

Technical University of Munich
National Institute of Standards and Technology

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

115 Scopus citations

Abstract

The adsorption of CO on Ru(001) has been studied using a combination of techniques: LEED/Auger, Kelvin probe contact potential changes, and flash desorption mass spectrometry. Adsorption of CO is reversible at temperatures and pressures as high as 700 K and 10^-4 Torr, respectively. Two binding states of CO are identified, and isosteric heats determined both from work function changes and from LEED intensity measurements agree well with flash desorption energies. A disordering of the CO layer due to repulsive interactions between neighbors at high coverages is postulated. Electron beam-induced LEED pattern changes are characterized and found to have a high cross section (-7 × 10^-17 cm²) at - 110eV.

Original language	English
Pages (from-to)	229-235
Number of pages	7
Journal	Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume	13
Issue number	S2
DOIs	https://doi.org/10.7567/JJAPS.2S2.229
State	Published - Jan 1974

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title = "Adsorption of co on (001) ruthenium at temperatures ≥ 300 k",

abstract = "The adsorption of CO on Ru(001) has been studied using a combination of techniques: LEED/Auger, Kelvin probe contact potential changes, and flash desorption mass spectrometry. Adsorption of CO is reversible at temperatures and pressures as high as 700 K and 10-4 Torr, respectively. Two binding states of CO are identified, and isosteric heats determined both from work function changes and from LEED intensity measurements agree well with flash desorption energies. A disordering of the CO layer due to repulsive interactions between neighbors at high coverages is postulated. Electron beam-induced LEED pattern changes are characterized and found to have a high cross section (-7 × 10-17 cm2) at - 110eV.",

author = "Madey, \{Theodore E.\} and Dietrich Menzel",

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T1 - Adsorption of co on (001) ruthenium at temperatures ≥ 300 k

AU - Madey, Theodore E.

AU - Menzel, Dietrich

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N2 - The adsorption of CO on Ru(001) has been studied using a combination of techniques: LEED/Auger, Kelvin probe contact potential changes, and flash desorption mass spectrometry. Adsorption of CO is reversible at temperatures and pressures as high as 700 K and 10-4 Torr, respectively. Two binding states of CO are identified, and isosteric heats determined both from work function changes and from LEED intensity measurements agree well with flash desorption energies. A disordering of the CO layer due to repulsive interactions between neighbors at high coverages is postulated. Electron beam-induced LEED pattern changes are characterized and found to have a high cross section (-7 × 10-17 cm2) at - 110eV.

AB - The adsorption of CO on Ru(001) has been studied using a combination of techniques: LEED/Auger, Kelvin probe contact potential changes, and flash desorption mass spectrometry. Adsorption of CO is reversible at temperatures and pressures as high as 700 K and 10-4 Torr, respectively. Two binding states of CO are identified, and isosteric heats determined both from work function changes and from LEED intensity measurements agree well with flash desorption energies. A disordering of the CO layer due to repulsive interactions between neighbors at high coverages is postulated. Electron beam-induced LEED pattern changes are characterized and found to have a high cross section (-7 × 10-17 cm2) at - 110eV.

UR - https://www.scopus.com/pages/publications/84927382181

U2 - 10.7567/JJAPS.2S2.229

DO - 10.7567/JJAPS.2S2.229

M3 - Article

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SN - 0021-4922

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EP - 235

JO - Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers

JF - Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers

IS - S2

ER -

Adsorption of co on (001) ruthenium at temperatures ≥ 300 k

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