A COMBINED HIGH-RESOLUTION ELECTRON-ENERGY-LOSS SPECTROSCOPY (HREELS), TEMPERATURE-PROGRAMMED DESORPTION SPECTROSCOPY (TPD) AND STATIC SECONDARY-ION MASS-SPECTROMETRY (SSIMS) STUDY OF THE ADSORPTION OF CO ON MN RU(0001) SINGLE-CRYSTAL SURFACES/

Authors
HUSSAIN ST
Citation
St. Hussain, A COMBINED HIGH-RESOLUTION ELECTRON-ENERGY-LOSS SPECTROSCOPY (HREELS), TEMPERATURE-PROGRAMMED DESORPTION SPECTROSCOPY (TPD) AND STATIC SECONDARY-ION MASS-SPECTROMETRY (SSIMS) STUDY OF THE ADSORPTION OF CO ON MN RU(0001) SINGLE-CRYSTAL SURFACES/, Journal of trace and microprobe techniques, 14(2), 1996, pp. 353-359
Citations number
16
Categorie Soggetti
Chemistry Analytical
Journal title
Journal of trace and microprobe techniques → ACNP
ISSN journal
07334680
Volume
14
Issue
2
Year of publication
1996
Pages
353 - 359
Database
ISI
SICI code
0733-4680(1996)14:2<353:ACHES(>2.0.ZU;2-Y
Abstract
SSIMS, TPD and EELS were used to investigate the adsorption of CO on M n/Ru(0001) surface under Ultra-high Vacuum conditions. The Mn/Ru(0001) surfaces were prepared by depositing Mn on a Ru(0001) surface at room temperature using a sputtered ion gun. TPD study revealed that CO is linearly bonded to Ru. SSIMS studies suggest that the main function of Mn is to reduce the coverage of CO adsorbed on the surface by physica lly blocking the adsorption sites. SSIMS analysis of the GO-covered Mn /Ru(0001) surfaces indicates that the adsorbed molecule is predominant ly linearly bonded, thus confirming the TPD results. EELS results, apa rt from confirming TPD and SSIMS findings, revealed the possible exist ence of an electronic interaction between the deposited Mn and Ru. Thi s was reflected in a change in the CO stretch frequency to lower wave numbers, with manganese deposition.