Thermal Decomposition of (4,4′-Dimethyl-2,2′-Bipyridine) Tris(Benzoate) Europium(III): Non-isothermal kinetics

Abstract

Abstract The thermal behavior of[Eu2(BA)6(dmbpy)2] (BA=C7H5O 2 – , benzoate; dmbpy=C12H12N2, 4,4-dimethyl-2,2-bipyridine) and its kinetics were studied under the non-isothermal condition in a static air atmosphere by TG-DTG, IR and SEM methods. Thermal decomposition of [Eu2(BA)6(dmbpy)2] occurred in four consecutive stages at T P 232, 360, 455 and 495°C. The kinetic parameters were obtained from analysis of the TG-DTG curves by Achar and Madhusudanan—Krishnan—Ninan (MKN) methods. The most probable mechanisms for the first stage was suggested by comparing the kinetics parameters.