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Artículo
Study of the dehydroxylation-rehydroxylation of pyrophyllite
(American Ceramic Society, 2010)
Pyrophyllite is a raw material of significant interest due to its large number of applications. Most of these applications require a thermal transformation of pyrophyllite; this thermal transformation implies the release ...
Artículo
Hydration and carbonation reactions of calcium oxide by weathering: Kinetics and changes in the nanostructure
(Elsevier, 2015)
The weathering reactions of hydration and carbonation of nanostructured calcium oxide with atmospheric moisture and carbon dioxide have been characterized. This work is the first-to-date combined kinetic and nanostructural ...
Artículo
Generalized master plots as a straightforward approach for determining the kinetic model: The case of cellulose pyrolysis
(Elsevier, 2013)
The thermal degradation of cellulose is a complex reaction and, despite the large amount of work by many investigators during the last decades, the actual understanding of the thermal decomposition kinetics is still very ...
Artículo
Constant rate thermal analysis of a dehydrogenation reaction
(Royal Society of Chemistry, 2016)
The Constant Rate Thermal Analysis (CRTA) procedure has been employed for the first time to study the kinetics of MgH2 dehydrogenation by thermogravimetry under high vacuum. CRTA implies controlling the temperature in such ...
Artículo
Nanocrystallization Kinetics Understood as Multiple Microprocesses Following the Classical Theory of Crystallization
(Elsevier, 2016)
In this work, we propose a model for using the classical Johnson-Mehl-Avrami-Kolmogorov (JMAK) crystallization theory to analyze nanocrystallization processes as a set of multiple microprocesses. This model is based on the ...
Artículo
A Promising approach to the kinetics of crystallization processes: The sample controlled thermal analysis
(American Ceramic Society, 2017)
Constant Rate Thermal Analysis (CRTA) method implies controlling the temperature in such a way that the reaction rate is maintained constant all over the process. This method allows determining simultaneously both the ...
Artículo
Combined TGA-MS kinetic analysis of multistep processes. Thermal decomposition and ceramification of polysilazane and polysiloxane preceramic polymers.
(2016)
The polymer-to-ceramic transformation kinetics of two widely employed ceramic precursors; 1,3,5,7-tetramethyl-1,3,5,7-tetravinylcyclotetrasiloxane (TTCS) and polyureamethylvinylsilazane (CERASET) have been investigated ...
Artículo
Synergism Effect between Phenolic Metabolites and Endogenous Antioxidants in Terms of Antioxidant Activity
(Universidade Federal do Espírito Santo, 2014)
Polyphenolic compounds, widely distributed in plant kingdom, have been exhaustively studied for their bioactive properties specially antioxidant activity. However, they are extensively metabolized by human organism and ...