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Desorption kinetic parameters as deduced from temperature programmed desorption curves

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Abstract

Temperature programmed desorption is a typical non-isothermal method and therefore it needs a careful experimentation and a careful evaluation of the experimental data, in order to obtain meaningful kinetic parameters.

A simple treatment of the data and some criteria, concerning the experimental methodology are therefore indicated, having in mind not only the advantages but also the difficulties and the limitations of a non-isothermal approach to kinetic studies.

Zusammenfassung

Die temperaturprogrammierte Desorption ist eine typische nicht-isotherme Methode, und deshalb ist eine sorgfÄltige Versuchsausführung und Auswertung der experimentellen Daten notwendig, um sinnvolle kinetische Parameter zu erhalten. Es werden deshalb eine einfache Behandlung der Daten und einige die experimentelle Methodologie betreffende Kriterien vorgestellt und anhand von experimentellen Beispielen erlÄutert, wobei nicht nur die Vorteile, sondern auch die Schwierigkeiten und Grenzen eines nicht-isothermen Verfahrens bei kinetischen Untersuchungen ErwÄhnung finden.

РЕжУМЕ

тЕМпЕРАтУРНО-пРОгРА ММИРОВАННАь ДЕсОРБц Иь ьВльЕтсь тИпИЧНыМ НЕ ИжОтЕРМИЧЕскИМ МЕтОДОМ И пОЁтОМУ тРЕ БУЕт тЩАтЕльНОгО пРО ВЕДЕНИь ЁкспЕРИМЕНтА И тЩАтЕ льНОИ ОцЕНкИ ЁкспЕРИМЕНтА льНых ДАННых с цЕльУ п ОлУЧЕНИь РАжУМНых кИНЕтИЧЕск Их пАРАМЕтРОВ. В сВьжы с ЁтИМ, УкАжАНА пРОстАь ОБРАБОткА ДА ННых И НЕкОтОРыЕ кРИтЕРИИ О тНОсИтЕльНО МЕтОДИкИ пРОВЕДЕНИь ЁкспЕРИМЕНтА, ИМЕь В В ИДУ НЕ тОлькО пРЕИМУЩЕстВА, НО тАкжЕ тРУДНОстИ И ОгРАНИЧЕНИь НЕИжОт ЕРМИЧЕскОгО пРИБлИж ЕНИь к кИНЕтИЧЕскИМ ИсслЕД ОВАНИьМ.

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Spinicci, R. Desorption kinetic parameters as deduced from temperature programmed desorption curves. Journal of Thermal Analysis 29, 1061–1074 (1984). https://doi.org/10.1007/BF02188859

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  • DOI: https://doi.org/10.1007/BF02188859

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