Non-isothermal decomposition kinetics and lifetime of Tb2（0-MBA）6（PHEN）2
来源期刊：Rare Metals2003年第3期
论文作者：ZHANG Jianjun BAIJihai WANG Ruifen WANG Shuping, and LI Jibiao) Experimental Center, Hebei Normal University, Shijiazhuang , China) Department of Computer, Hebei Normal College of Science and Technology, Changli , China) Department of Chemistry, Hebei Normal University, Shijiazhuang , China
文章页码：155 - 159
摘 要：<正> The thermal decomposition of Tb2（O-MBA）6（PHEN）2 （O-MBA: o-methylbenzoate; PHEN: 1,10-phenanthroline） and its kinetics were studied under the non-isothermal condition by thermogravimetry-derivative thermogravimetry （TG-DTG） techniques. Kinetic parameters were obtained from analysis of TG-DTG curves by the Achar method and the Madhusudanan-Krishnan-Ninan （MKN） method. The most probable mechanism function was suggested by comparing the kinetic parameters. The kinetic equation for the first stage can be expressed as dcddt = Aexp（-E/RT） 3（1 - α）2/3 The lifetime equation at mass loss of 10% was deduced as lnr= -28.7429 + 19797.795/Tby isothermal thermogravimetric analysis.
ZHANG Jianjun BAIJihai WANG Ruifen WANG Shuping, and LI Jibiao1) Experimental Center, Hebei Normal University, Shijiazhuang 050016, China2) Department of Computer, Hebei Normal College of Science and Technology, Changli 066600, China3) Department of Chemistry, Hebei Normal University, Shijiazhuang 050091, China
摘 要：<正> The thermal decomposition of Tb2（O-MBA）6（PHEN）2 （O-MBA: o-methylbenzoate; PHEN: 1,10-phenanthroline） and its kinetics were studied under the non-isothermal condition by thermogravimetry-derivative thermogravimetry （TG-DTG） techniques. Kinetic parameters were obtained from analysis of TG-DTG curves by the Achar method and the Madhusudanan-Krishnan-Ninan （MKN） method. The most probable mechanism function was suggested by comparing the kinetic parameters. The kinetic equation for the first stage can be expressed as dcddt = Aexp（-E/RT） 3（1 - α）2/3 The lifetime equation at mass loss of 10% was deduced as lnr= -28.7429 + 19797.795/Tby isothermal thermogravimetric analysis.
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