Matches in UGent Biblio for { <https://biblio.ugent.be/publication/662489#aggregation> ?p ?o. }
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- aggregation classification "A1".
- aggregation creator B164762.
- aggregation creator B164763.
- aggregation creator B164764.
- aggregation creator B164765.
- aggregation creator person.
- aggregation date "2009".
- aggregation hasFormat 662489.bibtex.
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- aggregation isPartOf urn:issn:1463-9076.
- aggregation language "eng".
- aggregation publisher "ROYAL SOC CHEMISTRY, THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND".
- aggregation subject "Chemistry".
- aggregation title "Regio- and Stereoselective Terpene Epoxidation using Tungstate-exchanged Takovites: a study of phase purity, takovite composition and stable catalytic activity".
- aggregation abstract "Nanocrystalline tungstate-exchanged layered double hydroxides of the takovite type, [NixAl1-x(OH)(2)](NO3)(0.9-x)(WO4)(0.05)center dot mH(2)O, have been prepared with changing values of x. The morphology-texture parameters of the synthesized materials were characterized by using scanning electron microscopy and nitrogen adsorption techniques. X-Ray diffraction, diffuse reflectance spectroscopy, Al-27 MAS NMR and infrared spectroscopy were applied to study the structure and the phase purity of the tungstate exchanged materials. Identification of the tungsten state was attempted by infrared and Raman spectroscopy. The catalytic properties of the pure tungstate exchanged takovites were tested in the bromide-assisted epoxidation of terpenic olefins using H2O2 as environmental benign oxidant. The bromide-assisted oxidation shows very interesting chemo-selectivity for various substrates with unique regio- and stereo-selectivity often opposite to that of many traditional methods. The activity of the tungstate catalyst was observed to highly depend on the Al content in the takovite support, most likely due to efficient charge shielding at the catalyst's surface. Tungstate exchanged on Al-rich takovite has a remarkable oxidation activity in terms of turnover frequency. Moreover, the takovite catalyst was found to be stable under reaction conditions and recyclable.".
- aggregation authorList BK407690.
- aggregation endPage "2975".
- aggregation issue "16".
- aggregation startPage "2964".
- aggregation volume "11".
- aggregation isDescribedBy 662489.
- aggregation similarTo b820336a.
- aggregation similarTo LU-662489.