To be fairly general and catalyst is easily separated by magnetic devices and can be reused without any apparent loss of activity for the reaction. Fe3O4 nanoparticles were prepared by chemical coprecipitation method and was found to be a mild and effective catalyst for the efficient, one-pot, three-component synthesis of 2,4,5-trisubstituted imidazoles at room temperature under ultrasound irra...

The perovskite-type oxides strontium-substituted lanthanum nickelate (LSNO) were prepared by a coprecipitation method in the present of octanoic acid as surfactant. The phase composition, morphology,lattice parameters and size of nanoparticles in these materials were characterized through Fourier transform infr...

Sol–gel auto-combustion is a unique combination of the combustion and the chemical gelation processes. In this work, nanosize (d) powders with compositions of ZnFe2O4 were synthesized by sol–gel combustion method. The puffy, porous brown powders as-combusted was calcined at the temperature of 750–1000◦C for 4 h. These powders are characterized by X-ray diffraction and scanning electron microsco...

The pursuit for sustainability in the papermaking industry calls elimination or reduction of synthetic additives and exploration renewable biodegradable alternatives. Cellulose nanofibrils (CNFs), due to their inherent morphological biochemical properties, are an excellent alternative additives. These properties enable CNFs improve mechanical, functional, barrier different types paper. nanosize...

Ferroelectric samples Sr1?xBaxTiO3 (BST), where x = 0, 0.2, 0.4, 0.6, 0.8 and 1, were prepared using the tartrate precursor method annealed at 1200 °C for 2 h. X-ray diffraction, “XRD”, pattern analysis verified structure phase. The crystallite size of SrTiO3 phase was calculated to be 83.6 nm, TiO2 it 72.25 nm. TEM images showed that crystallites agglomerated, due their nanosize nature. AC res...