Abstract: The kinetics of dissociative adsorption of oxygen was studied by the Monte Carlo method for a model which supposed that absorption occurs with a high rate only on steps and that Oads may migrate from steps onto terraces and backward. At the relatively low activation energy of diffusion from steps onto terraces Edif∼ 75 kJ/mol (Edif is lower by 4 kJ/mol in the back direction), the function log(s(θ)), wheres is the sticking coefficient and θ is the surface coverage by oxygen atoms, is almost linear at 300 K; that is, the Roginskii-Elovich adsorption equation is obeyed. If it is supposed that the bonding energy of adatoms on terraces is slightly higher than that on steps, and the sticking coefficient is constant and equal to s0 up to high degrees of coverage as well as in the model of the kinetics of adsorption with a precursor state.

Cite: Savchenko V.I. , Efremova N.I.
Kinetics of Dissociative Adsorption on Stepped Surfaces of Platinum
Kinetics and Catalysis. 2000. V.41. N1. P.127-131. DOI: 10.1007/BF02756151 WOS Scopus РИНЦ ANCAN OpenAlex

Original: Савченко В.И. , Ефремова Н.И.
К вопросу о кинетике диссоциативной адсорбции на ступенчатой поверхности платины
Кинетика и катализ. 2000. Т.41. №1. С.142-147. РИНЦ

Dates:

Submitted:	May 26, 1998
Published print:	Jan 1, 2000

Identifiers:

Web of science:	WOS:000086099600019
Scopus:	2-s2.0-0041781180
Elibrary:	13348011
Chemical Abstracts:	2000:213794
Chemical Abstracts (print):	132:213303
OpenAlex:	W2034492114

Citing:

DB	Citing
Scopus	1

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