| Numéro |
J. Phys. IV France
Volume 123, March 2005
|
|
|---|---|---|
| Page(s) | 65 - 69 | |
| DOI | https://doi.org/10.1051/jp4:2005123010 | |
J. Phys. IV France 123 (2005) 65-69
DOI: 10.1051/jp4:2005123010
Enhanced manganese content in Mn-MCM-41 mesoporous silicas
J. El Haskouri1, S. Cabrera2, A. Beltran1, C. Guillem1, D. Beltran1, J. Latorre1, M.D. Marcos3 and P. Amoros11 Institut de Ciència dels Materials de la Universitat de Valencia (ICMUV), PO Box 2085, 46071 Valencia, Spain
2 Laboratorio de Sólidos y Química Teórica, Instituto de Investigaciones Químicas UMSA, Cota-Cota, Calle n$^{\circ}$ 27, La Paz, Bolivia
3 Departamento de Química, Universidad Politécnica de Valencia, Camino de Vera s/n, 46071 Valencia, Spain
Abstract
The use of triethanolamine containing complexes of Si and Mn as
hydrolytic precursors allows the synthesis of doped mesoporous silicas in
which the Mn content can be modulated up to reach a minimum value of the
Si/Mn molar ratio of 3. This limit value corresponds to a Mn relative
content significantly higher than those reported to date for similar
materials (Si/Mn = 6). According to XRD, TEM and porosity data, the
mesoporous nature typical of the MCM-41 silicas is retained even for the
samples having the highest Mn content.
© EDP Sciences 2005