Results 1 to 10 of about 866 (174)
Insights into the Thermal Degradation Kinetics of β-Lactam Antibiotics: A Comparative Study of Cefazolin, Ceftriaxone, and Meropenem [PDF]
AntibioticsBackground/Objectives: The thermal stability and degradation kinetics of β-lactam antibiotics are critical for understanding their behavior under processing and storage conditions.
Ovidiu Ghirlea +9 more
doaj +2 more sources
Isoconversional computations for nonisothermal kinetic predictions
Thermochimica Acta, 2021 Abstract Isoconversional analysis is a model-free and powerful approach that readily provide quantitative information of the kinetics of a thermally activated transformation. Activation energy and preexponential factor are the main output of isoconversional analysis.
Lerys Granado, Nicolas Sbirrazzuoli
exaly +3 more sources
Identifying the Thermal Barriers of Glass Aging via Isoconversional Analysis. [PDF]
J Phys Chem BWe employ isoconversional analysis to gain insights on aging time-dependent thermal barriers in glasses evolving toward equilibrium. This is applied to glasses of different natures, including small molecules and polymers. Our analysis indicates that as relaxation proceeds, equilibration kinetics involves increasingly larger activation barriers.
Stavropoulou VM +5 more
europepmc +3 more sources
Challenges in Kinetic Parameter Determination for Wheat Straw Pyrolysis
Energies, 2022 Wheat straw is a renewable agricultural by-product that is currently underutilized in the production of bioenergy and bioproducts due to its high ash content, as well as high transport costs due to its low volumetric energy density. The thermogravimetric
Frederico G. Fonseca +3 more
doaj +1 more source
Atmosphere, 2022 Previous studies have successfully assessed the extent to which a kinetic model accurately represents a specific reaction mechanism by comparing the kinetic parameters derived from the kinetic model to those obtained using isoconversional methods ...
Mei An, Qingjie Guo
doaj +1 more source
Kinetic compensation effect of isoconversional methods [PDF]
Reaction Kinetics, Mechanisms and Catalysis, 2020 AbstractFor experimental data obtained under different reaction/process conditions over time or temperature, the kinetic compensation effect (KCE) can be expected. Under dynamic (nonisothermal) conditions, at least two analytical pathways forming the KCE were found.
Andrzej Mianowski +2 more
openaire +3 more sources
Isokinetic parameters of thermal degradation of powder of [Cd(N-Boc-gly)2(H2O)2]n [PDF]
Science of Sintering, 2014 The coordination polymer [Cd(N-Boc-gly)2(H2O)2]n undergoes thermally induced degradation in temperature region between 60 and 900oC. Kinetic parameters were determined for dehydration (63-123oC) and further degradation processes (123-461°C ...
Begović N. +4 more
doaj +1 more source
Isoconversional analysis of copper recrystallization [PDF]
Journal of Thermal Analysis and Calorimetry, 2016 Recrystallization of Cu deformed under compression has been monitored by differential scanning calorimetry (DSC) with experiments carried out at constant heating rate. From these experiments, an isothermal crystallization process has been predicted by the classical Kolmogorov-Johnson-Mehl-Avrami (KJMA) kinetics and by model-free isoconversional ...
Pérez, Abel +3 more
openaire +2 more sources
Determining Preexponential Factor in Model-Free Kinetic Methods: How and Why?
Molecules, 2021 The kinetics of thermally stimulated processes in the condensed phase is commonly analyzed by model-free techniques such as isoconversional methods.
Sergey Vyazovkin
doaj +1 more source
Energy Science & Engineering, 2020 The thermal characteristics and kinetic behavior of various solid wastes, including refuse‐derived fuel (RDF) and municipal solid waste (MSW), were investigated as a potential renewable energy source, in comparison with low‐rank coal.
Mudassar Azam +6 more
doaj +1 more source