Synthesis of LaCrO3 perovskite by the gel combustion method at low temperature

Abstract

LaCrO3 powder has been synthesised at low temperature (700⁰C) by the combustion of gel prepared from polyvinyl alcohol (PVA) and metal nitrates. LaCrO₃ characterization is examined by X-ray diffraction (XRD), thermogravimetric and differential thermal analysis (TG-DTA) field emission scanning electron microscopy (FESEM) and BET (Brunaure-Emmet-Teller) measurements. The obtained sample under optional preparative conditions has nana scale withrelatively large specific square area( ~14 m²/g).