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Type: | Artigo |
Title: | Formation of oxysulfide LnO2S2 and oxysulfate LnO2SO4 phases in the thermal decomposition process of lanthanide sulfonates (Ln = La, Sm) |
Author: | Machado, Luiz Carlos Azeredo, Marcos Tadeu D’Orlando de Corrêa, Hamilton Perez Soares Matos, Jivaldo do Rosário Mazali, Ítalo Odone |
Abstract: | This study investigates two lanthanide compounds (La3+ and Sm3+) obtained in water/ethyl alcohol solutions employing the anionic surfactant diphenyl-4-amine sulfonate (DAS) as ligand. Both sulfonates were characterized through IR, TG/DTG (O2 and N2). The thermal treatment of both compounds at 1273 K under air leaves residues containing variable percentages of lanthanide oxysulfide/oxysulfate phases shown by synchrotron high-resolution XRD pattern including the Rietveld analysis. The phase distributions found in the residues evidence the differences in the relative stability of the precursors |
Subject: | Rietveld, Método de |
Country: | Hungria |
Editor: | Springer |
Rights: | Fechado |
Identifier DOI: | 10.1007/s10973-011-1451-7 |
Address: | https://link.springer.com/article/10.1007/s10973-011-1451-7 |
Date Issue: | 2012 |
Appears in Collections: | IQ - Artigos e Outros Documentos |
Files in This Item:
File | Description | Size | Format | |
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000298054000042.pdf | 588.04 kB | Adobe PDF | View/Open |
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