ZnMn₂O₄ powder has been  synthesised at low temperature (500⁰C) by the combustion of gel prepared from  polyvinyl alcohol (PVA), manganese nitrates, and zince nitrates.

Factors affecting on process synthesis of nanometer oxides ZnMn₂O₄ including temperature of gel formation, molar ratio of concentration of ion metal and the concentration of polyvinyl alcohol, temperature of calcining on structure and sizes were investigated.

The crystalline process and the morphology of  oxides particles were considered by X-Ray diffraction (XRD), Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM). Surface  areas of oxides were determined by the BET ( Brunaure-Emmet-Teller) method. Further thermal treatment at 400-700⁰C in 3h yields the single phase ZnMn₂O₄. It specific surface area is 48,4 m²/g for ZnMn₂O₄. ZnMn₂O₄ powders with crystallite size 20 nm  have been prepared.

Tải file Nghiên cứu tổng hợp ZnMn2O4 kích thước nanomet bằng phương pháp đốt cháy gel tại đây