Authors:V. Sydorchuk, O. Makota, S. Khalameida, L. Bulgakova, J. Skubiszewska-Zięba, R. Leboda, and V. Zazhigalov
Results and discussions
XRD, BET, and DTA–TG analysis
The structure of milled molybdenum and vanadium oxides and their composition was analyzed with the help of XRD, DTA–TG, FTIR, and Raman spectroscopy in our previous
. Coupled TG–FTIR measurements were carried out using a Netzsch TG 209 apparatus coupled with a Bruker FTIR spectrophotometer. Samples of about 13.04 mg for Ho(III) and 11.3 mg for Tm(III) compound were heated up to 1000 °C at heating rate of 10 °C min −1
Authors:Marisa S. Crespi, Quézia V. Martins, Sonia de Almeida, Hernane S. Barud, Marcelo Kobelnik, and Clóvis A. Ribeiro
contains a considerable amount of S as a consequence of the chemical treatment, which explains its use as fertilizer. The higher percent of Si in the ash sample is a product of the thermal decomposition, as assessed by TG, FTIR, and X-ray diffractometry
series of lanthanide complexes with 4,4′-oxybis(benzoic) acid obtained under hydrothermal conditions. The thermogravimetric (TG), differential scanning calorimetry (DSC) methods in air and TG-FTIR coupled technique in nitrogen were used to study the
Authors:E. Y. Ionashiro, F. J. Caires, A. B. Siqueira, L. S. Lima, and C. T. Carvalho
investigate by complexometry, elemental analysis, infrared spectroscopy, simultaneous thermogravimetry and differential thermal analysis (TG–DTA), differential scanning calorimetry (DSC) and TG-FTIR techniques. The thermal studies were performed in dynamical
Authors:Z. Rzączyńska, A. Kula, J. Sienkiewicz-Gromiuk, and A. Szybiak
associated with a strong exothermic effect reflected on the DTA curve.
The decomposition process connected with the gas product analysis was carried out for the Sm and Ho complexes. The FTIR spectrum of
Thermal properties of cis-1,4-poly(butadiene), Europrene cis, were investigated by means of thermal analysis and complementary methods. Thermal analysis of polymer was carried out both in air and inert atmosphere with a derivatgraph, DSC and internal TG-FTIR coupling system as well as internal TG, DTA-MS coupling system. It was found that investigations in air atmosphere the method of the sample preparation ofcis-1,4-poly(butadiene) influences the results of thermal analysis, which is connected with the rate oxygen diffusion into the reaction zone. Taking into consideration both the method of the sample preparing and atmosphere of thermal studies, the values of activation energy of destruction of cis-1,4-poly(butadiene) were determined. Using TG-FTIR and TG-MS methods, some products of thermal destruction of elastomer were determined.
Authors:V. Sydorchuk, W. Janusz, S. Khalameida, E. Skwarek, J. Skubiszewska-Zięba, R. Leboda, and V. Zazhigalov
Deposited zirconium phosphate samples on the base of silica and titania have been prepared using the sol–gel and mechanochemical methods. Porous structure, phase composition, and electrokinetic parameters have been studied by means of nitrogen adsorption–desorption, XRD, DTA-TG, FTIR, electrophoresis, and potentiometric titration. The compositions possess varied parameters of porous structure, structure of deposited phase, and electrokinetic properties depending on support nature and synthesis conditions.
Authors:V. Sidorchuk, V. Tertykh, V. Klimenko, and A. Ragulya
Embedding of barium titanate into porous oxide matrices via sol–gel synthesis and introduction in structured slurry based
on fumed oxides has been carried out. Prepared compositions have been studied using XRD, DTA-TG, FTIR, TEM, and adsorption
of nitrogen. It has been established that simultaneous formation both barium titanate crystal structure and porous structure
of matrices occurs. Crystallites of barium titanate, which arise in pores, possess lesser size in comparison with that for
Authors:E. Styczeń, W. Jóźwiak, M. Gazda, D. Wyrzykowski, and Z. Warnke
Thermal decomposition of compounds consisting of tetrahalogenocuprate(II), [CuBrnCl4−n]2− (n=0–4) anions and a tetraethylammonium cation has been studied using TG-FTIR, TG-MS, DTA and DTG techniques. The measurements
were carried out in an argon and air atmospheres over the temperature range 293-1073 K. The products of the thermal decomposition
were identified by IR and Far Infrared (FIR) spectroscopy as well as X-ray powder diffractometry.