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Citation: WU Xin-Min, LIU Jian-Hua, LI Wei, QI Chuan-Song. Thermal Decomposition Kinetics of Complexes of Rare Earths (RE = Nd, Sm) with Amino Acid RE(Val)Cl₃•6H₂O[J]. Acta Physico-Chimica Sinica, ;2006, 22(08): 942-946. doi: 10.3866/PKU.WHXB20060807 shu

Thermal Decomposition Kinetics of Complexes of Rare Earths (RE = Nd, Sm) with Amino Acid RE(Val)Cl₃•6H₂O

1.
Department of Material and Chemical Engineering, Beijing Institute of Petro-chemical Technology, Beijing 102617, P.R. China

Received Date: 9 February 2006
Available Online: 7 July 2006

Some complexes of rare earth and valine were synthesized: monovalino -hexaquo-neodymium, samarium. Their property was determined by the EDTA titration, element analysis, infrared spectrum, thermogravimetry, differential thermal analysis and melting point measure. The thermal decomposition mechanism had been deduced, and non-isothermal kinetics of the thermal decomposition of the complexes also had been studied with the methods of Achar and Coats-Redfern. These parameters were carried out that the activation energy (E ), the values of logarithm of preexponential factore {ln(A/s-1)} and the kinetics equation of the complexes’ first step reaction which belong to the stagy of water-loss and the framework of amino acid breaking down.
- Rare earths complexes; RE(Val)Cl3·6H2O(RE = Nd，Sm); Thermal decomposition mechanism;Activation energy;Kinetics equation
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Thermal Decomposition Kinetics of Complexes of Rare Earths (RE = Nd, Sm) with Amino Acid RE(Val)Cl3•6H2O

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通讯作者: 陈斌, bchen63@163.com

Thermal Decomposition Kinetics of Complexes of Rare Earths (RE = Nd, Sm) with Amino Acid RE(Val)Cl₃•6H₂O