Thermal decomposition of yttrium(III) hexanoate in argon

被引：7

作者：

Grivel, J. -C. ^{[1
]}

Guevara, M. J. Suarez ^{[1
]}

Attique, F. ^{[1
]}

Zhao, Y. ^{[1
]}

Tang, X. ^{[1
,4
]}

Pallewatta, P. G. P. A. ^{[1
]}

Watenphul, A. ^{[2
,3
]}

Zimmermann, M. V. ^{[2
]}

机构：

[1] Tech Univ Denmark, Dept Energy Convers & Storage, DK-4000 Roskilde, Denmark

[2] DESY, D-22603 Hamburg, Germany

[3] Univ Hamburg, Inst Mineral & Petrog, D-20146 Hamburg, Germany

[4] Univ Hamburg, Inst Phys Chem, D-20146 Hamburg, Germany

来源：

JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS | 2015年 / 112卷

关键词：

Yttrium hexanoate; Thermal decomposition; Simultaneous TG-DTA; FTIR; Alkanoates; MESOMORPHIC BEHAVIOR; CRYSTAL-STRUCTURE; FILMS; OXIDE; PROPIONATE; ABSORPTION; MICROSTRUCTURE; GADOLINIUM; VALERATE; IR;

D O I：

10.1016/j.jaap.2015.01.019

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The thermal decomposition of yttrium(III) hexanoate (Y(C5H11CO2)(3))center dot xH(2)O in argon was studied by means of thermogravimetry, differential thermal analysis, IR-spectroscopy, X-ray diffraction at a laboratory Cu-tube source and in-situ experiments at a synchrotron radiation source as well as hot-stage optical microscopy. Dehydration occurs between 40 degrees C and 110 degrees C and is accompanied by a transition from solid to liquid crystalline state. At the onset of the main decomposition stage of the anhydrous Y(C5H11CO2)(3), solidification takes place in the 315-335 degrees C range. Y(C5H11CO2)(3) decomposes in a single step into Y2O2CO3 with release of CO2 and 6-undecanone between 280 degrees C and 490 degrees C. A side reaction appears to yield elemental carbon and volatile decane (C10H22)center dot Y2O2CO3 is converted to Y2O3 with release of CO2 between 500 degrees C and 975 degrees C. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：237 / 243

页数：7

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