Artículos de revistas
Effect of addition of divalent transition metal chlorides on the structure and thermal stability of lamellar silica synthesized by the neutral amine route
Registro en:
Journal Of Solid State Chemistry. Academic Press Inc, v. 149, n. 1, n. 113, n. 119, 2000.
0022-4596
WOS:000085229200016
10.1006/jssc.1999.8504
Autor
de Farias, RF
Airoldi, C
Institución
Resumen
The addition of divalent metal chlorides MCl2 (M = Mn, Co, Ni, Cu, Zn, Cd, Hg) drastically affects the structure and thermal stability of lamellar silica obtained through the neutral amine route using 1,12-diaminedodecane as template molecule. These changes in properties are related to the coordination features, as well as the amount of cation employed. The enhancement of the thermal stability of the modified lamellar silica is always independent of the cation added, On the other hand, the thermal stability of the hexagonal phase decreased. The occurrence of structural changes can be attributed to the reorientation of 1,12-diaminedodecane chains to allow cation coordination through nitrogen atoms, (C) 2000 Academic Press. 149 1 113 119