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
Dispersion and activity of vanadia supported on phosphate modified silica
โ Scribed by L. Jhansi Lakshmi; P. Kanta Rao
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 679 KB
- Volume
- 101
- 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
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