A comparative study on thermal behavior of solid-state light trivalent lanthanide isonicotinates in dynamic dry air and nitrogen atmospheres
作者： W. D. G. Nunes , J. A. Teixeira , A. L. C. S. do Nascimento , F. J. Caires , E. Y. Ionashiro
DOI: 10.1007/S10973-016-5339-4
关键词: Differential scanning calorimetry 、 Lanthanide 、 Inorganic chemistry 、 Thermal stability 、 Evolved gas analysis 、 Infrared spectroscopy 、 Analytical chemistry 、 Thermogravimetry 、 Elemental analysis 、 Chemistry 、 Thermal decomposition
摘要: Characterization, thermal stability, and decomposition of light trivalent lanthanide isonicotinates Ln(L)3·2H2O (Ln = La to Gd, except Pm; L = isonicotinate) were investigated employing simultaneous thermogravimetry differential scanning calorimetry (TG–DSC), DSC, infrared spectroscopy (FTIR), evolved gas analysis by TG–DSC coupled FTIR, elemental analysis, complexometry. The dehydration these compounds occurs in a single step, the anhydrous one or two (air) three steps (N2). final residues CeO2, Pr6O11, Ln2O3 (Ln = La, Nd Gd) air atmosphere, while N2 atmosphere mass loss is still being observed up 1000 °C. results also provided information concerning gaseous products during dynamic dry nitrogen atmospheres.
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