Vanadium-containing SBA-15 systems prepared by direct synthesis: Physico-chemical and catalytic properties in the decomposition of dichloromethane
Piumetti, M; Bonelli, B; Armandi, M; Gaberova, L; Casale, S; Massiani, P; Garrone, E
| HERO ID | 3588393 |
|---|---|
| In Press | No |
| Year | 2010 |
| Title | Vanadium-containing SBA-15 systems prepared by direct synthesis: Physico-chemical and catalytic properties in the decomposition of dichloromethane |
| Authors | Piumetti, M; Bonelli, B; Armandi, M; Gaberova, L; Casale, S; Massiani, P; Garrone, E |
| Journal | Microporous and Mesoporous Materials |
| Volume | 133 |
| Issue | 1-3 |
| Page Numbers | 36-44 |
| Abstract | V(x)-SBA-15 materials (vanadium content in the 0.7-4.8 wt.% range) were prepared by direct synthesis and tested in the catalytic decomposition of dichloromethane: a SBA-15 silica and a V/SBA-15 prepared by impregnation were used as reference samples. The structural and surface properties of all samples were characterized by means of complementary physico-chemical techniques. V(x)-SBA-15 materials containing isolated vanadium sites were catalytically active towards dichloromethane conversion, with maximum conversion obtained by the catalyst having 2.2 wt.% vanadium. In V(x)-SBA-15 materials prepared by direct synthesis, vanadium occurs mainly as isolated sites with tetrahedral coordination as far as its content does not reach the theoretical monolayer capacity (ca. 4 wt.%): unlike catalysts prepared by traditional impregnation method, oligomeric VOx species form only at high vanadium content. (C) 2010 Elsevier Inc. All rights reserved. |
| Doi | 10.1016/j.micromeso.2010.04.011 |
| Wosid | WOS:000279061000005 |
| Is Certified Translation | No |
| Dupe Override | No |
| Is Public | Yes |
| Keyword | Vanadium-containing SBA-15; Mesoporous oxide catalysts; Chlorinated volatile organic compounds (CI-VOCs); Dichloromethane oxidation |