Kinetic of decomposition of some complexes under non-isothermal conditions |
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| Authors: | Gabriela Vlase T. Vlase Ramona Tudose Otilia Costişor N. Doca |
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| Affiliation: | (1) Research Center for Thermal Analysis in Environmental Problems, West University of Timişoara, Str. Pestalozzi No. 16, Timişoara, 300115, Romania;(2) Institute of Chemistry Timişoara, B-dul M. Viteazul, No. 24, Timişoara, Romania |
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| Abstract: | Kinetics of thermal decomposition of three structurally similar complexes Co2Cu(C2O4)3 (R-diam)2, where R is ethyl, 1,2-propyl or 1,3-propyl, was studied under non-isothermal conditions and nitrogen dynamic atmosphere at heating rates of 5, 7, 10, 12 and 15 K min−1. For data processing the Flynn-Wall-Ozawa and a modified non-parametric kinetic methods were used. By both methods the activation energy are in the range of 97–102 kJ mol−1. The formal kinetic is r=kα(1−α)2. Also a compensation effect between lnA and E was evidenced. The kinetic analysis lead to the conclusion of an identic decomposition mechanism by a single step process. |
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| Keywords: | non-isothermal kinetics thermal decomposition three-nuclear complexes |
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