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Kinetic Treatments for Catalyst Activation and Deactivation Processes based on Variable Time Normalization Analysis
Author(s) -
MartínezCarrión Alicia,
Howlett Michael G.,
AlamilloFerrer Carla,
Clayton Adam D.,
Bourne Richard A.,
Codina Anna,
VidalFerran Anton,
Adams Ralph W.,
Burés Jordi
Publication year - 2019
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201903878
Subject(s) - catalysis , kinetic energy , normalization (sociology) , chemistry , kinetics , reaction rate , activation energy , thermodynamics , photochemistry , organic chemistry , physics , quantum mechanics , sociology , anthropology
Progress reaction profiles are affected by both catalyst activation and deactivation processes occurring alongside the main reaction. These processes complicate the kinetic analysis of reactions, often directing researchers toward incorrect conclusions. We report the application of two kinetic treatments, based on variable time normalization analysis, to reactions involving catalyst activation and deactivation processes. The first kinetic treatment allows the removal of induction periods or the effect of rate perturbations associated with catalyst deactivation from kinetic profiles when the quantity of active catalyst can be measured. The second treatment allows the estimation of the activation or deactivation profile of the catalyst when the order of the reactants for the main reaction is known. Both treatments facilitate kinetic analysis of reactions suffering catalyst activation or deactivation processes.