Artigo
Hydrothermal treatment of gadolinium oxide in presence of silica
Fecha
1994-12-01Registro en:
High Pressure Research, v. 12, n. 4-6, p. 353-360, 1994.
0895-7959
10.1080/08957959408201682
2-s2.0-0028736068
4284809342546287
Autor
Universidade Estadual Paulista (Unesp)
Resumen
Hydrothermal and solvothermal (isopropanol) treatments of gadolinium oxide and silica were investigated under different pressure and temperature conditions. Products were examined by infrared vibrational spectroscopy (IR), x-ray powder diffraction (XRD) and thermal analysis (DTA, TG). Hexagonal gadolinium hydroxide was obtained in hydrothermal conditions, even in presence of silica, while no change was observed from isopropanolic medium treatment. Hydrothermally treated samples are more reactive as precursors for solid state reactions in inorganic synthesis.
Materias
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