Vanadia and silica-supported vanadia have been characterized by XRD, ESR and chemisorption of oxygen at low temperature (COLT) to assess the nature of the vanadia dispersion on the support. Aniline alkylation studies on the effect of temperature and contact time on the conversion and selectivity of
โฆ LIBER โฆ
A comparative aniline alkylation activity of montmorillonite and vanadia-montmorillonite with silica and vanadia-silica
โ Scribed by Sankarasubbier Narayanan; Kiranmayi Deshpande
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 545 KB
- Volume
- 135
- Category
- Article
- ISSN
- 0926-860X
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## Abstract Detailed structural studies of vanadia supported on SiO~2~ and modified SiO~2~ (Si~0.8~M~0.2~O~2ยฑ~~__ฮด__~ where M = Al^3+^, Zr^4+^ and Y^3+^) were carried out using different techniques such as powder XRD, IR spectroscopy and ^29^Si, ^27^Al and ^51^V MAS NMR spectroscopy. All samples ex