Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 92: Issue 3
Influence of some minerals on the cellulose thermal degradation mechanisms
Thermogravimetic and pyrolysis-mass spectrometry studies
Authors:
Anissa Khelfa Université Paul Verlaine Metz Laboratoire de Chimie et de Méthodologies pour l’Environnement IUT Moselle-Est rue Victor Demange-BP 80105 57500 Saint-Avold France

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Gisèle Finqueneisel Université Paul Verlaine Metz Laboratoire de Chimie et de Méthodologies pour l’Environnement IUT Moselle-Est rue Victor Demange-BP 80105 57500 Saint-Avold France

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M. Auber

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J. Weber Université Paul Verlaine Metz Laboratoire de Chimie et de Méthodologies pour l’Environnement IUT Moselle-Est rue Victor Demange-BP 80105 57500 Saint-Avold France

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Pages:
795–799
Online Publication Date:
02 Jul 2008
Publication Date:
01 Jun 2008
Article Category:
Research Article
DOI:
https://doi.org/10.1007/s10973-007-8649-8
Keywords:
catalysis; cellulose; low heating rate pyrolysis; Py-MS; thermal degradation
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Abstract  

The influence of different inorganic salts (MgCl2, ZnCl2, NiCl2 and H2PtCl6) on the primary mechanisms of cellulose thermal degradation has been conducted by using thermogravimetric (TG-DTG) and pyrolysis-mass spectrometry (Py-MS) analysis at low heating rate (10°C min-1) from ambient temperature to 500°C. The results clearly demonstrate that the used salts influence the primary degradation mechanisms. Furthermore, we can assume that some inorganic salts could be considered as specific catalysts and some others as inhibitors. MgCl2 promotes selectively initial low temperature dehydration as observed both by TG and Py-MS. ZnCl2 strongly changes the thermal behaviour of impregnated sample. The maximum mass loss rate temperature is shifted to lower temperature and on the basis of our results we can conclude that ZnCl2 acts as catalyst in all primary degradation mechanisms. NiCl2 and H2PtCl6 do not modify significantly the cellulose thermal behaviour but change the composition of both produced gases and liquids suggesting that these minerals catalyse some secondary reactions.

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Cover Journal of Thermal Analysis and Calorimetry
Journal of Thermal Analysis and Calorimetry
Print ISSN:
1388-6150
Online ISSN:
1572-8943

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation		 1969
Volumes
per Year		 1
Issues
per Year		 24
Founder Akadémiai Kiadó
Founder's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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