A well-characterized saponite was intercalated with [Al13] polyoxo aluminium cations. Its surface area was studied by nitrogen and ethylene glycol adsorption: the relative validity of both techniques in the case of pillared clays was assessed and compared to the theoretically expected value. The str
Preparation, characterization and catalytic activity in the deep oxidation of acetone of Cr, Al-pillared saponites
✍ Scribed by A. Gil; M. A. Vicente; R. Toranzo; M. A. Bañares; L. M. Gandía
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 1998
- Tongue
- English
- Weight
- 235 KB
- Volume
- 72
- Category
- Article
- ISSN
- 0268-2575
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✦ Synopsis
A natural saponite was pillared with hydroxy-aluminium, hydroxychromium and hydroxy-chromiumÈaluminium solutions. The solutions of intercalation were characterized by visible spectroscopy, showing the presence of chromium oligomers. The pillared saponites were characterized by X-ray di †raction and nitrogen adsorption. The catalytic activity of these materials in the deep oxidation of acetone has been investigated.
1998 SCI (
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Cadmium-containing catalysts were obtained by calcining a parent mixture of chromia and cadmium nitrate precursor materials in atomic ratio Cd/Cr = 0.5. The thermal genesis of the catalysts was explored by means of thermogravimetric analysis (TGA) in different atmospheres (air, nitrogen, and hydroge