Chemical synthesis of nanosized oxides

New synthesis of nanosized niobium oxides and lithium niobate particles and their characterization by XPS analysis.

This work presents a new synthesis of nano-sized lithium niobate particles by a low temperature three steps procedure. The complete protocol implies a LiH induced reduction of NbCl5 followed by in situ spontaneous oxidation into low valence niobium nano-oxides. These niobium oxides are exposed to air atmosphere leading to pure Nb2O5 formation. Finally, the stable Nb2O5 is converted into lithium...

Design of Nanosized Ceria-zirconia Mixed Oxides for Catalytic Applications

Sonochemical synthesis of nanosized hollow hematite.

Hollow inorganic materials are of great interest, in part because of their diverse applications for drug delivery, catalysis, photonic crystals, etc.1 Various preparation methods have been developed to fabricate hollow inorganic materials2,3 and even hollow single crystals;4 most commonly these synthetic methods exploit the use of silica nanospheres as a sacrificial template material. While sil...

Synthesis of (Aminoalkyloxymethyl)dimethylphosphine Oxides

The tertiary phosphine oxides (TPO) comprise a large group of organophosphorus compounds to which a considerable attention in the literature is paid [1-5]. However, only few TPO ’s containing one or more primary amino groups in their mole­ cules are known. Studies on such compounds are limited [6-12]. Because of the high activity of amino groups these compounds can be used as phosphorylation ag...

The chemical state of complex uranium oxides

Uranium oxides are fascinating materials not only owing to their technological significance in nuclear fuel applications [1] but also with respect to their dynamical properties [2], valence orbital configuration [3] and elementary excitations [4]. Understanding of the electronic, magnetic and crystal structural properties of uranium dioxide (UO2) was advanced significantly [5,6] after establish...