The influence of alkaline cations on the mechanism and kinetics of dehydration of polymeric phthalatocuprate(II) dihydrates
AuthorsZdravković, Jelena D.
Blagojević, Vladimir A.
Minić, Dragica M.
Article (Accepted Version)
MetadataShow full item record
Thermal dehydration of two heterometallic complexes containing dianion of phthalic acid, pht, Na2[Cu(pht)2] · 2H2O, 1, and K2[Cu(pht)2] · 2H2O, 2, was investigated under non-isothermal conditions. Mechanism and kinetics of dehydration were analyzed in detail using TG/DSC/MS measurements, XRPD analysis and FT-IR spectroscopy. The reversibility of dehydration processes was identified. According to XRPD, dehydrated product of 1 maintains original structure, but dehydration of 2 undergoes structural transformation giving a dehydrated product of different crystal structure. In both cases dehydration process involves more than one elementary step, which was confirmed using isoconversional methods Deconvolution of this process using Fraiser-Suzuki function yielded two single step processes for 1 and 2. Subsequent kinetic analysis was performed using Màlek algorithm, resulting in the determination of kinetic triplets (Ea, A and f(α)) for each individual step. In addition, the dehydrated comple...xes were investigated as possible candidates for H2 adsorption, using molecular simulations.
Keywords:heterometallic complexes / mechanism and kinetics of dehydration / deconvolution / phthalate ion
Source:Journal of Analytical and Applied Pyrolysis, 2017, 126, 323-331
- Zero- to Three-Dimensional Nanostructures for Application in Electronics and Renewable Energy Sources: Synthesis, Characterization and Processing (RS-45007)
- Non-invasive and invasive detection of endothelial dysfunction and coronary vasospasm in patients with chest pain syndrome (RS-175020)
- This is the peer reviewed version of the article: Zdravković, J.D., Poleti, D.D., Rogan, J.R., Blagojević, V.A., Szécsényi, K.M., Minić, D.M., 2017. The influence of alkaline cations on the mechanism and kinetics of dehydration of polymeric phthalatocuprate(II) dihydrates. Journal of Analytical and Applied Pyrolysis 126, 323–331. https://doi.org/10.1016/j.jaap.2017.05.014