A novel chemical route for the preparation of nanosized oxides, phosphates, vanadates, molybdates and tungstaes using polymer precursors

摘要

A variety of nanosized (particle diameter rangingbetween 10-90 nm) ceramic oxide powders have been preparedfrom a versatile, efficient and technically simple polymer matrixbased precursor solution. The precursor solution constituted ofthe metal nitrates mixed with the polymer-PVA/PAA/carboxylated starch in presence of mono-disaccharidesor, poly hydroxy compound. Thermolysis/ flame pyrolysis of theprecursor mass at external temperatures of around 300-500℃resulted in the oxide phase.