Abstract
Two causes for the kinetic compensation effect (KCE) were recognized for a given solidstate reaction at various heating rates. One is due to any change in the range of reaction. This KCE is quantitative and meaningful, provided thatF(α) remains constant under the given conditions. The other is due to misestimation of the appropriate rate law, which in turn leads to a superficial KCE. It was also shown that the existence of an isokinetic point does not necessarily imply the occurrence of a meaningful KCE.
Zusammenfassung
Für den kinetischen Kompensationseffekt (KCE) für eine gegebene Feststoffreaktion bei verschiedenen Aufheizgeschwindigkeiten wurden zwei Gründe angegeben. Der eine Grund steht in Beziehung zur Änderung der Reaktionstemperatur. Dieser KCE ist quantitativ und von Bedeutung, vorausgesetzt, daßF(α) unter den gegebenen Bedingungen konstant bleibt. Der andere liegt in der falschen Aufstellung des entsprechenden Geschwindigkeitsgesetzes. Es wurde weiterhin gezeigt, daß die Existenz eines isokinetischen Punktes nicht zwangsweise das Auftreten eines bedeutenden KCE beinhaltet.
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Koga, N., Tanaka, H. A kinetic compensation effect established for the thermal decomposition of a solid. Journal of Thermal Analysis 37, 347–363 (1991). https://doi.org/10.1007/BF02055937
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DOI: https://doi.org/10.1007/BF02055937