Artículos de revistas
Dependence of the Structural Stability of MCM-41 on the Impregnating Iron Solution
Fecha
2003-06Registro en:
Cagnoli, Maria Virginia; Alvarez, Ana María; Bengoa, Jose Fernando; Gallegos, Norma Graciela; Mogni, Liliana Verónica; et al.; Dependence of the Structural Stability of MCM-41 on the Impregnating Iron Solution; Springer; Hyperfine Interactions; 148-149; 1-4; 6-2003; 185-191
0304-3843
1572-9540
CONICET Digital
CONICET
Autor
Cagnoli, Maria Virginia
Alvarez, Ana María
Bengoa, Jose Fernando
Gallegos, Norma Graciela
Mogni, Liliana Verónica
Gonzalez Oddera, Mariela
Marchetti, Sergio Gustavo
Mercader, Roberto Carlos
Resumen
The MCM-41 mesoporous material was chosen as support of very small iron oxide particles. To study the preparation conditions that allow to preserve the support structure four samples were prepared. The solids were characterized by atomic absorption spectroscopy (AAS), specific surface area (BET), X-ray diffraction (XRD) and Mössbauer spectroscopy at 298 and 22 K. The absence of water in the impregnation step is essential to avoid the collapse of the structure.