A study was done of the thermal decomposition of urea under open reaction vessel conditions by thermogravimetric analysis (TGA), high performance liquid chromatography (HPLC), Fourier transform-infrared (FT-IR), and an ammonium ion-selective electrode (ISE). Both evolved gases and urea residue were...
Magnesium phthalate dihydrate was synthesized by rheological phase reaction. The crystal structure was determined by XRD. Its thermal decomposition mechanism in N2 was studied by TG DTA. The thermal decomposition products were characterized by XRD, GC–MS. The thermal decomposition of magnesium phthalate...
Thermal behavior and decomposition kinetics of composite solid propellants in the presence of amide burning rate suppressants. J. Therm. Anal. Calorim. 2018, 132, 1601–1615. [Google Scholar] [CrossRef] Sbirrazzuoli, N. Determination of pre-exponential factor and reaction mechanism in a model-...
The Arrhenius relation will not be observed above the temperature at which the decomposition or, as may occur for enzymes, inactivation of one or more of the reactants occurs (Tmax). Indeed, adherence to this relation at temperatures well above Tmax for most microorganisms has been used as ev...
Kinetics and Mechanisms of the Thermal Decomposition of Copper(II) Hydroxide: A Consecutive Process Comprising Induction Period, Surface Reaction, and Phas... Kinetics and Mechanisms of the Thermal Decomposition of Copper(II) Hydroxide: A Consecutive Process Comprising Induction Period, Surface Reaction,...
the reaction is endothermic, which keeps the depolymerization localized. Due to this unique decomposition reaction, PPA has demonstrated sub-10 nm resolution29and fast patterning (1 μs heating pulses)7. Due to the sublimation of the resist upon exposure with a heated probe, PPA can be rem...
The thermal decomposition of CuHCF is found to be similar to that of other PBAs in terms of dehydration temperature and evolved gases. The water content is estimated to 2.9–3.9 molecules of water n per formula unit K2x/3CuII[Fe IIx Fe III1−x (CN)6]2/3·nH2O, with an additional...
Their thermolyses have three stages: phen or bipy removal, separation of H2L minus chloride and bromide of H2L, and complete thermal decomposition to the metal oxide. 展开 关键词: Oxido-vanadium(IV) complex Copper(II) complex TGA Spectroscopy Crystal structures ...
When the particles absorb light, they create a local temperature increase, which causes the decomposition of the SPS and initiates the polymerization reaction. A broad range of wavelength absorbance, from the mid-visible (~550 nm) along almost the entire NIR range, can be achieved by ...
The precursor must be a liquid compound which vaporizes without decomposition, such as a hydrocarbon for pyrocarbon, tetraetoxysilane for SiO2, methyltrichlorosilane for SiC, hexamethyldisilazane for Si3N4, or borazine for BN. The preform is heated at a temperature higher than the cracking ...