Abstract
The thermal decomposition of three new reagent cyclohexylamine-p- tolylglyoxime (L1H2), tertiarybutyl amine-p-tolylglyoxime (L2H2) and secondary butylamine-p-tolylglyoxime (L 3H2 and their Co-complexes were studied by both isothermal and nonisothermal methods. As expected, the complex structure of Co-complexes, different steps with different activation energies were realized in decomposition process. Model-fitting and model-free kinetic approaches were applied to nonisothermal and isothermal data. The kinetic triplet (f(α), A and E) related to nonisothermal model-fitting method can not be meaningfully compared with values obtained from isothermal method. The complex nature of the multi-step process of the studied compounds was more easily revealed using a wider temperature range in nonisothermal isoconversional method.
Original language | English |
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Pages (from-to) | 123-131 |
Number of pages | 9 |
Journal | Journal of Thermal Analysis and Calorimetry |
Volume | 89 |
Issue number | 1 |
DOIs | |
Publication status | Published - Jul 2007 |
Externally published | Yes |
Keywords
- Arrhenius parameter
- Co(II) complexes
- Kinetic analysis
- Model-fitting and model-free methods
- Vic-dioxime