In this study, the solution combustion method as a simple, fast, and cost-effective method was utilizedfor the fabrication of spinel nickel aluminate as a stable material to use in the esterification reaction.The effect of fuel amount (urea) as an important parameter of the solution combustion method on thestructure, properties, and performance of the sample was evaluated. The...

"Aluminium hydroxide dissolves in acids. From its solution in hydrochloric acid, an aluminlum salt, aluminium chloride A1C13, 6H20, is obtained. I t also combines with strong bases, dissolving for instance in a solution of sodium hydroxide and forming an aluminate, NaA102 . . . . According to the best knowledge we have on the subject, the molecule of aluminium hydroxide has the following struct...

We present here a first principles study of the structural, electronic, magnetic, and hyperfine properties magnesium ferrite, MgFe2O4 (spinel structure). The was carried out within framework Functional Density Theory (DFT) using full potential linearized augmented plane waves method (FPLAPW) both Generalized Gradient (GGA) GGA+U approximations for exchange correlation potential. To discuss magn...

Copper aluminate spinel (CuO.CuAl2O4) is the favoured Cr-free substitute for copper chromite catalyst (CuO.CuCr2O4) in industrial hydrogenation of aldehydes. New insights catalytic mechanism were obtained by systematically studying structure and activity these catalysts including effects manganese as a component. The butyraldehyde to butanol was studied model reaction active characterised using...

Since the emergence of problem nuclear waste conditioning, cementation has become an important and developing part management system, owing to its simplicity versatility. The continued development technique is driven by improvement expansion cementitious materials that are suitable efficient for solidification. Advances in cement theory technology have significantly impacted improvements techno...