Incorporation of zirconium in medium-pore aluminophosphate molecular sieves with AFO framework
| Title | Incorporation of zirconium in medium-pore aluminophosphate molecular sieves with AFO framework |
| Publication Type | Journal Article |
| Year of Publication | 2011 |
| Authors | Chakrabortty, D, Ganguli, JN, Satyanarayana, CVV |
| Journal | Microporous and Mesoporous Materials |
| Volume | 137 |
| Issue | 1-3 |
| Pagination | 65-71 |
| Date Published | JAN |
| ISSN | 1387-1811 |
| Keywords | AFO, Aluminophosphate, catalysis, Molecular sieve, ZrAPO 41 |
| Abstract | Zirconium substituted medium pore microporous aluminophosphate molecular sieve ZrAPO-41 was prepared by hydrothermal synthesis under autogenous pressure The formation of the pure phase was confirmed by powder X-ray diffraction (XRD) and scanning electron microscopy (SEM)The thermal behaviour of the material was investigated by carrying out thermogravimetric/differential thermal analysis (TGA/DTA) The zirconium environment was studied by magic-angle spinning nuclear magnetic resonance (MAS NMR) spectroscopy which suggests incorporation of zirconium into the framework UV-Visible diffuse reflectance study also supports the claim The temperature programmed desorption (TPD) of ammonia reveals that the acidity of ZrAPO 41 samples is higher than that of pure AlPO4-41 The catalytic activity of the samples was investigated through phenol hydroxylation reaction The result show hi E her catalytic activity for ZrAPO-41 samples compared to AlPO4-41 (C) 2010 Elsevier Inc All rights reserved |
| DOI | 10.1016/j.micromeso.2010.08.022 |
| Type of Journal (Indian or Foreign) | Foreign |
| Impact Factor (IF) | 3.285 |