The Thermal Decomposition Kinetics of [Co(bipy)(H2O)4](C4H4O4)·4H2O

Abstract The thermal decomposition kinetics of [Co(bipy)(H 2 O) 4 ](C 4 H 4 O 4 ) · 4H 2 O was carried out by thermogravimetry (TG) and derivate thermogravimetry (DTG) analysis at four heating rates of 5, 8, 11 and 14 °C/min in nitrogen atmosphere. TG confirmed that thermal decomposition of the compound takes place in a single step. The kinetic parameters (activation energy, frequency factor, and activation entropy) were calculated using various forms of non-isothermal methods. The activation energy obtained by the Ozawa method is in agreement with the value determined by the Coats–Redfern technique. However, a much lower activation energy was obtained by the Kissinger method.