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Advanced isoconversional kinetics of nanocrystallization in Fe73.5Si13.5B9Nb3Cu1 alloy
Thermochimica Acta, 2009Abstract Nanocrystallization kinetics of amorphous Finemet alloy was studied using Vyazovkin advanced isoconversional method under non-isothermal condition. Well known Kissinger model-fitting method and four isoconversional methods of Kissinger–Akahira–Sunose (KSA), Flynn–Wall–Ozawa (FWO), Tang, and Starink were also used for the determination of ...
Hossein Asghari Shivaee +1 more
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Isoconversional kinetics of thermal oxidation of mesoporous silicon
Thermochimica Acta, 2016Mesoporous silicon (pSi) has several interesting features that makes it suitable for various biomedical applications. In particular, the large surface area make it very sensitive to environment changes. Among other approaches, thermal oxidation is an effective way to passivate its surface.
Ghafarinazari, Ali +6 more
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Isoconversional Kinetic Analysis of Pyrolysis of Sugarcane Bagasse
Materials Science Forum, 2012This paper presents a kinetic study of pyrolysis of sugarcane bagasse from dynamic thermogravimetric experiments (TG). The methods of Kissinger, Ozawa, Starink, Kissinger-Akahira-Sunose and Friedman were used to estimate the activation energy. These methods consider the temperature shifts with increase of heating rate for a given conversion in dynamic ...
Kássia Graciele dos Santos +4 more
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Isoconversional kinetic study of alachlor and metolachlor vaporization by thermal analysis
International Journal of Chemical Kinetics, 2004AbstractThe vaporization kinetics of two acetamide pesticides, namely alachlor and metolachlor, was studied by thermogravimetric analysis under nonisothermal conditions (using heating rates between 1.0 and 10 K min−1). A model‐free isoconversional method of kinetic analysis was proposed, and activation energy dependences on the extent of conversion α ...
SBIRRAZZUOLI N. +2 more
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Isoconversional Kinetic Analysis of Pyrolysis of Malt Waste
Materials Science Forum, 2017Locally available malt waste or brewers' spent grain, a by-product of brewing industry, was found to be a low cost and promising biomass for pyrolysis. A kinetic studied of pyrolysis of malt waste was investigated by non-isothermal thermogravimetric analyses (TG-DTG), applying slow heating rates, 10, 15, 30 and 50 K/min, and well-defined conditions ...
Beatriz Cristina Silvério +4 more
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Influence of mass-transfer effect on isoconversional calculations
Thermochimica Acta, 2008Abstract A theoretical simulation of the influence of mass-transfer effect on the kinetics of solid–gas reactions has been carried out. The influence of mass-transfer phenomena on the shape of the thermoanalytical curves and on the apparent activation energy, calculated by advanced isoconversional methods (Vyazovkin method) is discussed.
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Isoconversional analysis of solid state transformations
Journal of Thermal Analysis and Calorimetry, 2011J. Farjas, P. Roura
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Some Basics En Route to Isoconversional Methodology
2015The chapter discusses the major differences between the classical kinetics of homogeneous systems and the heterogeneous kinetics and presents some basic ideas of the latter. It highlights the unavoidably complex (multistep) nature of the condensed-phase kinetics and introduces the concept of variable activation energy.
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Isoconversional vs. Model fitting methods
Journal of Thermal Analysis and Calorimetry, 2007A. Pratap +3 more
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