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The complex of Sm2(o-NBA)6(PHEN)2 (o-NBA, o-Nitrobenzoate; PHEN, 1,10-phenanthroline) was prepar-ed and characterized by elemental analysis, IR and UV spectraoscopy. The thermal decomposition mechanism of Sm2(o-NBA)6(PHEN)2 was studied under a static air atmosphere by TG-DTG. The thermal decomposition kinetics of the complex for the first stage was studied under non-isothermal condition. The most probable mechanism functions of the thermal decomposition reaction for the first stage are: G(α)=[-ln(1-α)]1/2, f(α)=2(1-α)[-ln(1-α)]1/2. The activation energy E for the first stage is 259.50 kJ·mol-1, the pre-exponential factor A is 36.19×1018 min-1. The lifetime equation at weight-loss of 10% was deduced as lnτ=-36.70+27 572.12/T by isothermal thermogravimetric analysis.
The complex of Sm2 (o-NBA) 6 (PHEN) 2 (o-NBA, o-Nitrobenzoate; PHEN, 1,10-phenanthroline) was prepar- ed and characterized by elemental analysis, IR and UV spectra. The thermal probabilities of the complex for the first stage was studied under non-isothermal condition. The most probable mechanism functions of the thermal decomposition reaction for the first stage are: G (α) = [- ln (1-α)] 1/2, f (α) = 2 (1-α) . The activation energy E for the first stage is 259.50 kJ · mol-1, the pre-exponential factor A is 36.19 × 1018 min-1. The lifetime equation at weight-loss of 10% was deduced as lnτ = -36.70 + 27 572.12 / T by isothermal thermogravimetric analysis.