Tổng hợp perovskit La0,9Ce0,1Cr0,5Mn0,5O3 ở nhiệt độ thấp bằng phương pháp đốt cháy gel.

Abstract

La_0.9Ce_0.1Cr_0.5Mn_0.5O₃has been synthesized at temperature 650^oC by the combustion of gel prepared from polyvinyl alcohol (PVA) and metal nitrates. La_0.9Ce_0.1Cr_0.5Mn_0.5O₃characterization is examined by X-ray diffraction (XRD), thermogravimetric and differential thermal analysis          (TG-DTA), transmission  electron  microscopy (TEM) and BET (Brunaure-Emmet-Teller) measurements. The obtained  sample under optional preparative conditions  has nano scale with specific square area of 16.0 m²/g.