%A MAO Weida, ZHAO Lin
%T Sol-gel Synthesis and Catalytic Property of La0.5Sr0.5Co0.8Mn0.2O3-δ Perovskite
%0 Journal Article
%D 2021
%J Materials Reports
%R 10.11896/cldb.20090255
%P 24001-24005
%V 35
%N 24
%U {http://www.mater-rep.com/CN/abstract/article_4521.shtml}
%8 2021-12-25
%X The La0.5Sr0.5Co0.8Mn0.2O3-δ nanoparticles were prepared by sol-gel calcinations synthesis. The samples were characterized by means of XRD, electron microscopy, X-ray photoelectron spectroscopy and iodometric titration. Tetrabromobisphenol A was used as model pollutant to investigate its catalytic performance. The results showed that the La0.5Sr0.5Co0.8Mn0.2O3-δ particles had R-3c perovskite structure with an average grain size of 40-70 nm. Compared with the samples calcined under nitrogen, the non-stoichiometric oxygen concentration of the samples calcined by weak oxidation were moderate, the average valence of overall B-site ions in perovskite structure was also relatively stable, and its catalytic performance was therefore strong and relatively stable, which can be recycled for 4 times.