Manganese oxide power has been  synthesised at low temperature (600⁰C) by the combustion of gel prepared from  polyvinyl alcohol (PVA) and Manganese nitrate. Mn₂O₃ characterization is examined by X-ray diffraction (XRD), thermogravimetric and differential thermal analysis (TG-DTA), scanning electron microscopy (SEM) and BET ( Brunaure-Emmet-Teller) measurements. Further thermal treatment at 500-800⁰C in 2h yields the single phase Mn₂O₃ with average primary size < 80 nm. It specific surface area is 47 m²/g for Mn₂O₃.

Tải file Tổng hợp Mn2O3 kích thước nanomet bằng phương pháp đốt cháy gel ở nhiệt độ thấp tại đây