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The influence of alkaline cations on the mechanism and kinetics of dehydration of polymeric phthalatocuprate(II) dihydrates

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zdravkovi2017.pdf (1.167Mb)
Authors
Zdravković, Jelena D.
Poleti, Dejan
Rogan, Jelena
Blagojević, Vladimir A.
Mészáros, Katalin
Minić, Dragica M.
Article (Accepted Version)
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Abstract
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
Publisher:
  • Elsevier
Projects:
  • 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)
Note:
  • 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

DOI: 10.1016/j.jaap.2017.05.014

ISSN: 0165-2370

WoS: 000407984300035

Scopus: 2-s2.0-85020429725
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URI
http://dais.sanu.ac.rs/123456789/4616
Collections
  • ITN SANU - Opšta kolekcija / ITS SASA - General collection
Institution
Институт техничких наука САНУ / Institute of Technical Sciences of SASA

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