Harjinder Singh
Articles written in Pramana – Journal of Physics
Volume 27 Issue 1-2 July 1986 pp 337-361 Solid State Physics
Current trends in the theories of gas-surface interaction
Studies on gas-surface dynamics have acquired considerable importance recently not only for their intrinsic scientific interest but also for their technological potential. This article first briefly describes various experimental techniques and a number of interesting recent observations resulting from these techniques. It then discusses certain important theoretical methodologies being extensively used nowadays. There are
Volume 27 Issue 4 October 1986 pp 613-613 Erratum
Volume 40 Issue 3 March 1993 pp 201-206
Adsorption on model fractal surfaces
A simple model for the adsorption of gas molecules on fractal surfaces is formulated. For surface reactions where adsorption is the rate determining step, considerations based on the probability of adsorption are sufficient to describe the kinetics. Different values of fractal dimension correspond to different values of rate constant for adsorption. A linear relationship between the dynamics and the geometric properties of a solid surface as well as a statistical mechanical relationship between internal partition functions of the gas molecule and the adsorption complex are obtained.
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