| Title | Helical Al- and Ce-MCM-41 materials as novel catalyst for acid and redox processes |
|---|---|
| Authors | Carrillo, Adela I. , Serrano, Elena , SERRANO RUIZ, JUAN CARLOS, Luque, Rafael , Garcia-Martinez, Javier |
| External publication | Si |
| Means | Appl. Catal. A-Gen. |
| Scope | Article |
| Nature | Científica |
| JCR Quartile | 1 |
| SJR Quartile | 1 |
| JCR Impact | 3.41 |
| SJR Impact | 1.573 |
| Publication date | 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. |
| Keywords | Helical mesoporous material; Oxathioacetalisation; Oxidation; Hydrothermal; Aluminium; Cerium |
| Universidad Loyola members |