Results 1 to 10 of about 2,611 (186)

Critical study of the isoconversional methods of kinetic analysis [PDF]

open access: greenJournal of Thermal Analysis and Calorimetry, 2008
A critical study of the use of isoconversional methods for the kinetic analysis of non-isothermal data corresponding to processes with either a real or an apparent variation of the activation energy, E, with the reacted fraction, α, has been carried out ...
Criado Luque, José Manuel   +2 more
core   +9 more sources

Investigation and Determination of Kinetic Parameters of Sweeteners Based on Steviol Glycosides by Isoconversional Methods

open access: goldFoods
In this study, the decomposition processes of tabletop sweeteners based on steviol glycosides were investigated to determine the kinetic parameters of activation energy (Ea) and the logarithm of the pre-exponential factor (ln A) based on the converted fraction (α).
Naienne da Silva Santana   +3 more
doaj   +5 more sources

Kinetic Prediction of Fast Curing Polyurethane Resins by Model-Free Isoconversional Methods [PDF]

open access: goldPolymers, 2018
In this work, the characterisation of reaction kinetics of a methylene diphenyl diisocyanate (MDI)-based fast curing polyurethane resin (PUR) and the mathematical description of its curing process are presented. For the modelling of the reaction process isoconversional methods, which are also called model-free approaches, are used instead of model ...
Michael Stanko, Markus Stommel
exaly   +6 more sources

Advanced Isoconversional Kinetic Analysis for the Elucidation of Complex Reaction Mechanisms: A New Method for the Identification of Rate-Limiting Steps [PDF]

open access: goldMolecules, 2019
Two complex cure mechanisms were simulated. Isoconversional kinetic analysis was applied to the resulting data. The study highlighted correlations between the reaction rate, activation energy dependency, rate constants for the chemically controlled part ...
Nicolas Sbirrazzuoli
openalex   +3 more sources

The catalytic thermo-oxidative decomposition of glimepiride using the isoconversional method [PDF]

open access: hybridJournal of Thermal Analysis and Calorimetry, 2022
AbstractApplying the isoconversional method to data obtained from thermogravimetric analysis (TGA) can provide vital kinetic information. In this work, the thermal decomposition and oxidation of the antidiabetic drug glimepiride is analyzed in the presence of N2and O2. The study was done with and without metal oxide catalysts to explore their potential
Najamus Sahar Riyaz, Ismail Badran
openalex   +4 more sources

Kinetic compensation effect of isoconversional methods [PDF]

open access: hybridReaction 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.
A. Mianowski   +2 more
openalex   +4 more sources

Thermogravimetric analysis of high-density cork granules using isoconversional methods

open access: goldEnergy Reports, 2022
In the present work thermogravimetric techniques were used to study the thermal degradation of high-density cork granules. Pyrolysis experiments were carried out for four heating ramps (10, 15, 20 and 25 °C.min−1), using nitrogen as the carrier gas. From
Albina Ribeiro   +3 more
openalex   +3 more sources

Evaluation of Thermal Degradation Kinetics of Hybrid Cellulose Acetate Membranes using Isoconversional Methods

open access: diamondVetor, 2022
Cellulose acetate membranes are widely used in industry, emphasizing water purification processes, such as desalination. With some limiting mechanical properties, the synthesis of hybrid membranes appears as an alternative for developing high ...
Gesiane Mendonça Ferreira   +4 more
openalex   +4 more sources

Exploring the potential of fish waste (Sardinella fimbriata) through pyrolysis: A study of kinetics and thermodynamics using isoconversional methods

open access: goldMaterials Science for Energy Technologies, 2023
The growing global demand for fish has led to an increase in fish waste (FW) production, necessitating efficient waste management strategies. Pyrolysis is a promising way to convert fish waste into high-value products.
Nurul Iffah Farhah Mohd Yusof   +3 more
openalex   +3 more sources

Kinetic Studies on the Steam Gasification of Chars Derived from Coals by Different Isoconversional Methods [PDF]

open access: goldAtmosphere, 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
openalex   +3 more sources

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