Thermal behavior and decomposition kinetics

Zhenrong Lu; Yuanchen Ding; Ying Xu; Shuhua Chen; Yunpeng Yu
July 2003
Journal of Thermal Analysis & Calorimetry;2003, Vol. 73 Issue 1, p333
Academic Journal
The thermal behaviors of [1,1,1-trifluro-3-(2-thenoyl)-acetonato]copper(II) Cu(TTA)2 and its adducts with pyridine Cu(TTA)2(Py)2, 2,2'-bipyridine Cu(TTA)2(Bpy), quinoline Cu(TTA)2(Ql)2, and dimethyl sulfoxide Cu(TTA)2(DMS) in a nitrogen atmosphere were studied under the non-isothermal conditions by simultaneous TG-DTG-DSC technique. The results showed that the evolution of the solvent molecules generally proceeded before the release of TTA in different ways according to their structures. The Cu(TTA)2(Bpy) exhibited a unique decomposition pattern due to its distinctive structure. The dependences of activation energy on extent of reaction for all the stage of each compound were determined by using an isoconversional method, Flynn-Wall-Ozawa equation, which show E values varied with reaction progress, indicating the complexity of these decomposition reactions. In addition, the values of activation energy E for TTA molecules evolution are generally higher than that for the solvent molecules release.


Related Articles

  • Explicit Classical-Mechanical Description of the State of a Body. Vukeija, T. // International Review of Physics;Apr2008, Vol. 2 Issue 2, p107 

    An alternative classical-mechanical description of the state of a body is discussed, the description that is expressed exclusively by the properties of the body. Such description requires the specification of the "position in time" and the energy of the body, and implies the inclusion of the...

  • AN AUTHENTIC PROFILE FROM ISTANBUL WITHIN THE CONTEXT OF SPATIAL DYNAMICS: SILE. Durhan, Sila // International Journal of Academic Research;Sep2014, Vol. 6 Issue 5, p139 

    Sile, the district of Istanbul with the third largest area, is located in northwest part of Turkey, northeast part of Marmara Region, and in Black Sea Coast of Kocaeli peninsula. Sile has a coast line of 60 km. with natural beaches and 79% of the district is covered with forests; and because of...

  • Dynamics of optic canal and orbital cavity development revealed by microCT. Dumic-Cule, Ivo; Eljuga, Domagoj; Izadpanah, Ali; Erjavec, Igor; Prgomet, Stefan; Hladnik, Ana; Bicanic, Ivana; Rora, Mia; Vinter, Ivan; Grgurevic, Lovorka // Surgical & Radiologic Anatomy;Dec2014, Vol. 36 Issue 10, p989 

    Purpose: Numerous studies have attempted to clarify the exact anatomy and variations of the optic canal with non-conclusive results due to its close proximity to many vulnerable structures. We sought to determine the dynamics of growth and development of these structures on fetal skulls, which...

  • Bifurcation and complex dynamics of a discrete-time predator-prey system with simplified Monod-Haldane functional response. Rana, Sarker // Advances in Difference Equations;11/5/2015, Vol. 2015 Issue 1, p1 

    In this paper, we investigate the dynamics of a discrete-time predator-prey system with simplified Monod-Haldane functional response. The existence and local stability of positive fixed point of the discrete dynamical system is analyzed algebraically. It is shown that the system undergoes a flip...

  • Factor of the Finite Rigidity of the Working Member in the Dynamics of the Vibratory Machine. Zviadauri, V.; Nadiradze, T.; Chelidze, M.; Tumanishvili, G. // Applied Mechanics & Materials;2014, Issue 627, p93 

    Vibratory transport and technological machines (VTTM) are widely used in the various spheres of the industry: for transportation of the friable and separate particles, their dosed supply-sorting and realization of various technological processes. One of the factors that has an influence on the...

  • Spin and Dynamics in Relativistic Quantum Theories. Polyzou, W.; Glöckle, W.; Witała, H. // Few-Body Systems;Sep2015, Vol. 56 Issue 6/9, p395 

    The role of relativity and dynamics in defining the spin and orbital angular momentum content of hadronic systems is discussed.

  • Spin Dynamics in Magnetic Heterostructures Driven by Current-Induced Spin-Orbit Torques. KULAGIN, N.; KORNEEV, V.; POPKOV, A.; DEMIN, G. // Acta Physica Polonica, A.;2015, Vol. 127 Issue 2, p463 

    In this work it is shown that in magnetic heterostructure with the structural inversion symmetry due to the presence of the Rashba effective field responsible for the effects of spin-orbit scattering, the spin dynamics in the magnetic layer is described by a modified system of coupled equations...

  • Generalized activity equations for spiking neural network dynamics. Buice, Michael A.; Chow, Carson C. // Frontiers in Computational Neuroscience;Nov2013, p1 

    Much progress has been made in uncovering the computational capabilities of spiking neural networks. However, spiking neurons will always be more expensive to simulate compared to rate neurons because of the inherent disparity in time scales-the spike duration time is much shorter than the...

  • Identification of Multi-Input Multi-Output Systems Using Combined Direct and Indirect Methods. Faisal, A.; Ramasamy, M.; Shuhaimi, M.; Rahim, M. // Applied Mechanics & Materials;2014, Issue 625, p414 

    Successful deployment of cooperative decentralized model predicative control needs reasonably accurate subsystem interactions models. Processes in which open-loop tests are not permitted, closed-loop identification of subsystems interactions is crucial. An approach that combines the direct and...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics