کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1623576 | 1516411 | 2008 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Synthesis, characterization and thermal decomposition kinetics of Sm(III)complex with 2,4-dichlorobenzoate and 2,2â²-bipyridine
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The complex of [Sm(2,4-DClBA)3(bipy)]2 (2,4-DClBA, 2,4-dichlorobenzoate; bipy, 2,2â²-bipyridine) was synthesized and characterized by elemental analysis, molar conductivity, IR and UV spectra. The thermal decomposition process of the complex was studied by means of TG-DTG and IR techniques. And its thermal decomposition kinetics was investigated via the analysis of the TG-DTG curves by jointly using double equal-double steps method and nonlinear integral isoconversional method. The activation energy E, the pre-exponential factor A and the most probable mechanism functions of the first decomposition stage were obtained. Meanwhile, the thermodynamic parameters (ÎHâ , ÎGâ and ÎSâ ) were also calculated. The lifetime equation at weight-loss of 10% was deduced as ln Ï = â35.53 + 20200/T by isothermal thermogravimetric analysis.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 466, Issues 1â2, 20 October 2008, Pages 281-286
Journal: Journal of Alloys and Compounds - Volume 466, Issues 1â2, 20 October 2008, Pages 281-286
نویسندگان
Hai-Yan Zhang, Jian-Jun Zhang, Ning Ren, Su-Ling Xu, Yong-Hua Zhang, Liang Tian, Hui-Hua Song,