| Título |
Helical Al- and Ce-MCM-41 materials as novel catalyst for acid and redox processes |
| Autores |
Carrillo, Adela I. , Serrano, Elena , SERRANO RUIZ, JUAN CARLOS, Luque, Rafael , Garcia-Martinez, Javier |
| Publicación externa |
Si |
| Medio |
Appl. Catal. A-Gen. |
| Alcance |
Article |
| Naturaleza |
Científica |
| Cuartil JCR |
1 |
| Cuartil SJR |
1 |
| Impacto JCR |
3.41000 |
| Impacto SJR |
1.57300 |
| Fecha de publicacion |
05/09/2012 |
| ISI |
000307153200001 |
| DOI |
10.1016/j.apcata.2012.05.022 |
| Abstract |
Helical mesoporous silicas containing aluminium or cerium into their framework have been synthesized via hydrothermal method. The synthesized materials were extensively characterized to understand their physico-chemical properties in view of their future catalytic applications. Low-angle powder XRD patterns of calcined samples showed a hexagonally ordered mesopore structure. NMR spectra of aluminium materials exhibited two signals at 50 and 0 ppm assigned to tetracoordinated and octahedrally coordinated Al3+. DR-UV-vis and XPS spectrum of cerium content materials show that cerium was incorporated as Ce3+ and Ce4+ into the helical mesoporous material. Materials with molar ratios Si/Al = 95 and Si/Ce = 500 were found to be catalytically active in acid (oxathioacetalisations and alkylations) or redox (epoxidation of cyclohexene) catalyzed processes, respectively. (c) 2012 Elsevier B.V. All rights reserved. |
| Palabras clave |
Helical mesoporous material; Oxathioacetalisation; Oxidation; Hydrothermal; Aluminium; Cerium |
| Miembros de la Universidad Loyola |
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