Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/101772
Type: Artigo de periódico
Title: Kinetic Study Of Chelates Of 2,2,6,6-tetramethyl-3,5-heptanedione With Some Lanthanide Elements
Author: Souza A.G.
Tavares M.L.A.
Melo D.M.A.
Conceicao M.M.
Espinola J.G.P.
Airoldi C.
Abstract: The thermal decomposition reactions of crystalline chelates of general formula Ln(thd)3 (Ln=La, Pr, Nd, Sm and Gd; thd=2,2,6,6-tetramethyl-3,5-heptanedione) have been studied by isothermal thermogravimetry. Several models were proposed initially to calculate the kinetic parameters by iso-thermal method, thus the time reduced method was used to define the best kinetic models. The Avrami-Erofeev (Am=2, 3 and 4) and R1 and R2 models presented good agreement with experimental data, as well as, linear correlation coefficient (r) and standard deviation (s).
Editor: 
Rights: fechado
Identifier DOI: 10.1023/A:1013919014587
Address: http://www.scopus.com/inward/record.url?eid=2-s2.0-0036186804&partnerID=40&md5=98a3c41456e68d7e438aade9385562e5
Date Issue: 2002
Appears in Collections:Unicamp - Artigos e Outros Documentos

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