DOI: 10.1116/1.575102. The compensation effect in thermal desorption of adsorbate systems with lateral interactions

The compensation effect in thermal desorption of adsorbate systems with lateral interactions

10.1116/1.575102

Crossref journal-article

American Vacuum Society

Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films (20)

Abstract

Within the Polanyi–Wigner model of thermal desorption, lateral interactions are revealed by a coverage-dependent activation energy of desorption E(θ) and a preexponential factor ν(θ). Several experiments have shown that ν and E often satisfy the ‘‘compensation effect’’ ln ν(θ)=E(θ)/RTc+const. In this contribution we introduce this compensation effect into the rate expression for thermal desorption and present calculated thermal desorption spectra assuming pairwise lateral interactions and first- or second-order desorption kinetics. The results emphasize that simplified thermal desorption spectroscopy analysis procedures based on peak maximum temperatures and peak widths only will almost always lead to incorrect results.

Bibliography

Niemantsverdriet, J. W., & Wandelt, K. (1988). The compensation effect in thermal desorption of adsorbate systems with lateral interactions. Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films, 6(3), 757â761.

Authors 2

J. W. Niemantsverdriet (first)
K. Wandelt (additional)

References 0 Referenced 26

None

Dates

Type	When
Created	23 years, 1 month ago (July 27, 2002, 5:19 a.m.)
Deposited	2 years, 2 months ago (June 28, 2023, 6 p.m.)
Indexed	1 year, 6 months ago (Feb. 10, 2024, 5:23 a.m.)
Issued	37 years, 4 months ago (May 1, 1988)
Published	37 years, 4 months ago (May 1, 1988)
Published Print	37 years, 4 months ago (May 1, 1988)

Funders 0

None

BibTeX

@article{Niemantsverdriet_1988, title={The compensation effect in thermal desorption of adsorbate systems with lateral interactions}, volume={6}, ISSN={1520-8559}, url={http://dx.doi.org/10.1116/1.575102}, DOI={10.1116/1.575102}, number={3}, journal={Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films}, publisher={American Vacuum Society}, author={Niemantsverdriet, J. W. and Wandelt, K.}, year={1988}, month=may, pages={757–761} }

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