This paper is a brief review of our recent research into novel uses for heteropoly compounds as precursors for thin films that can be used as catalysts and materials with good optical, conductive and other characteristics. In view of this, we have chosen thin film obtained with 12-tungsphosphoric acid on aluminum substrates. In all cases, a relatively new, microarc oxidation technique has been ...

BACKGROUND Ascorbic acid is one of the most important vitamins to monitor in dietary sources (juices and vitamins) and biological liquids. RESULTS Silica and silica-titania xerogels doped with Mo,P-heteropoly compounds (HPC) have been synthesized varying titanium(IV) and HPC content in sol. Their surface area and porosity have been studied with nitrogen adsorption and scanning electron micros...

Two vanadium-containing Keggin silicopolyoxotungsto compounds K5SiVW11O40 and K6SiV2W10O40 were synthesized characterized. They incorporated in a superporous hydrogel constitute by prop-2-enamide propenoic acid as initial monomers bis-acrylamide cross-linking moiety. Materials characterized several techniques. According to FTIR 51V MAS-NMR, the (SiVxW12-xO40)(4+x)- anions are main species prese...

Aurcularia auricular polysaccharide (AAP) is a kind of acidic heteropoly sugar containing β-D-glucan, it has good biological activities. In this paper, the main components, extraction methods and development application AAP were systematically introduced, in order to provide new ideas theoretical basis for promoting creation products AAP.

It has been shown on two examples that STM and AFM techniques can be used to image oxometalates with molecular resolution. The shapes of these molecules are clearly distinguished and their dimensions have been determined. It has even been possible to correlate other results culled from the AFM image of the surface of a single crystal of an oxometalate with those of crystallography. These result...

Biologically as well medicinally important two different organic scaffolds, viz. benzimidazole and quinazoline, are present in the class of heterocyclic compounds called benzimidazoquinazolinone. Similarly, indolylxanthenones containing moieties such indole xanthene. In this work, a new green protocol for synthesis benzoimidazoquinazolinone indolylxanthenone derivatives was attained under envir...

The selective preparation of monobenzyl glyceryl ethers, which are potential commodity chemicals with special functions, was explored to find new applications for glycerol. Among the acid catalysts investigated (sulfuric acid, heteropoly acid, Nafion(R), and zeolite), Zeolite Socony Mobil-5 (ZSM-5) afforded better results. The reaction of equimolar amounts of glycerol and benzyl alcohol at 150º...