Kinetics of activated chemisorption. Part 2.—Theoretical models

1 January 1977

journal article
research article
Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases

Vol. 73, 456-464
https://doi.org/10.1039/f19777300456

Abstract

In activated chemisorption the plot of the reciprocal of the rate Z=(dq/dt)^–1 against the time t is convex towards the Z axis at low t and concave at high t. This condition is satisfied if both the energy of activation, E_t and the number of available sites, N_t decrease with the coverage q and if d²E_t/dq² < 0. Two models are considered:

Keywords

MODELS
THEORETICAL
ACTIVATED CHEMISORPTION
AXIS
RECIPROCAL
CONCAVE
COVERAGE
PLOT