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Kinetic analysis of solid-state reactions: Precision of the activation energy calculated by integral methods

Opened Access Kinetic analysis of solid-state reactions: Precision of the activation energy calculated by integral methods

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Autor: Pérez Maqueda, Luis Allan
Sánchez Jiménez, Pedro Enrique
Criado Luque, José Manuel
Departamento: Universidad de Sevilla. Departamento de Química Inorgánica
Fecha: 2005
Publicado en: International Journal of Chemical Kinetics, 37, 658-666.
Tipo de documento: Artículo
Resumen: The integral methods are extensively used for the kinetic analysis of solid-state reactions. As the Arrhenius integral function [p(χ)] does not have an exact analytical solution, different approximated equations have been proposed in the literature for performing the kinetic analysis of experimental integral data. Since the first approximation of Van Krevelen, a large number of equations have been proposed with the objective of increasing the precision in the determination of the Arrhenius integral, as checked from the standard deviation of the approximated function with regard to the real exact value of the integral. However, the main application of these equations is the determination of the kinetic parameters, in particular activation energies, and not the computation of the Arrhenius integral. A systematic analysis of the errors involved in the determination of the activation energy from these integral methods is still missing. A comparative study of the precision of the activatio...
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Cita: Pérez Maqueda, L.A., Sánchez Jiménez, P.E. y Criado Luque, J.M. (2005). Kinetic analysis of solid-state reactions: Precision of the activation energy calculated by integral methods. International Journal of Chemical Kinetics, 37, 658-666.
Tamaño: 180.5Kb
Formato: PDF

URI: https://hdl.handle.net/11441/74147

DOI: 10.1002/kin.20115

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