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The thermal behavior of Tb_2(BA)_6(PHEN)_2 (BA: benzoate, and PHEN: 1,10-phenanthroline) in a static air at-mosphere was investigated by TG-DTG, SEM and IR techniques. By the kinetic method of processing thermal analysis dataput forward by Malek et al., it is defined that the kinetic model for the first-step thermal decomposition is SB(m, n). The ac-tivation energy E for this step reaction is 99.07 kJ/mol, the entropy of activation ΔS~# is-84.72 J/mol, the enthalpy of acti-vation ΔH~# is 94.26kJ/mol, the free energy of activation ΔG~# is 144.77 kJ/mol and the pre-exponential factor InA is 20.93.The lifetime equation at mass-loss of 10% was deduced as 1nτ=-29.0312+19760.83/T by isothermal thermogravimetricanalysis.
The thermal behavior of Tb_2 (BA) _6 (PHEN) _2 (BA: benzoate, and PHEN: 1,10-phenanthroline) in a static air at-mosphere was investigated by TG-DTG, SEM and IR techniques. By the kinetic method of processing thermal analysis dataput forward by Malek et al., it is defined that the kinetic model for the first-step thermal decomposition is SB (m, n). The ac-tivation energy E for this step reaction is 99.07 kJ / mol, the entropy of activation ΔS ~ # is-84.72 J / mol, the enthalpy of acti-vation ΔH ~ # is 94.26 kJ / mol, the free energy of activation ΔG ~ # is 144.77 kJ / mol and the pre-exponential factor InA is 20.93.The lifetime equation at mass-loss of 10% was deduced as 1nτ = -29.0312 + 19760.83 / T by isothermal thermogravimetricanalysis.