๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Time-resolved EELS study of CO2 desorption from Ag (011)

โœ Scribed by G.S. Elliott; K.J. Wu; S.D. Kevan


Publisher
Elsevier Science
Year
1990
Tongue
English
Weight
511 KB
Volume
175
Category
Article
ISSN
0009-2614

No coin nor oath required. For personal study only.

โœฆ Synopsis


We present time-resolved electron-energy-loss-spectroscopy results for the isothermal desorption of CO? from Ag(Ol1). At all coverages below saturation of the first monolayer, the desorption is characterized by pseudo-zero-order kinetics resulting from the formatton of two-dimensional CO2 islands on the surface. Deviation from precisely zero-order behavior is attributed to a slightly larger sticking coefficient on the adsorbate-covered portions of the surface than on the clean surface. The energetics ofthe desorption process are analyzed in terms of the interaction of the molecules with the surface and with themselves.


๐Ÿ“œ SIMILAR VOLUMES


Time resolved study of vibrational relax
โœ Michael Baggen; Ad Lagendijk ๐Ÿ“‚ Article ๐Ÿ“… 1991 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 424 KB

The vibrational coherence relaxation of the S2, bound state of the Fermi dyad vI:2v2 in solid CO2 is studied with the timeresolved stimulated Raman technique as a function of temperature for pressures up to 4.4 GPa. The relaxation is determined by a competition between two contributions: a down-conv

Time-resolved infrared emission studies
โœ David A. Mantell; Subbarao B. Ryali; Gary L. Haller ๐Ÿ“‚ Article ๐Ÿ“… 1983 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 325 KB

The time resolution capabilities of a Fourier-transform infrared spectrometer are used in conjunction with a pulsed nozzle to study the effects of CO and 0 coverage on the product CO\* enegy distributions from the oxidation of CO on Pt and Pd surfaces. No coverage effect is found on Pd but on Pt a l