Isoconversion method for kinetic analysis of solid-state reactions from dynamic thermoanalytical data |
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Authors: | Chao-Rui Li Tong B Tang |
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Affiliation: | (1) Physics Department, H.K., Baptist University,, Kowloon Tong, Kowloon,, Hong Kong |
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Abstract: | The activation energy for a heterogeneous reaction involving a solid may be obtained from a plot of
0 ln(d/dt) d against
0(1/T) d, where represents the fractional conversion of the solid reactant, and T(t) is the (time-dependent) reactant temperature. This new approach to the analysis of dynamic thermoanalytical kinetic data has distinct advantages over existing methods, as it needs to make no assumption about the kinetic model, involves no approximation to the temperature integral, and is easy to implement on the computer. |
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