期刊
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
卷 24, 期 9, 页码 2991-3000出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S1003-6326(14)63436-1
关键词
Ag2O; advanced isoconversional method; kinetic modeling; Sestak-Berggren model
The thermal decomposition kinetics of Ag2O-graphite mixture was systematically studied using a differential scanning calorimeter (DSC) in terms of model-fitting Malek approach, integral master plot method and model-free advanced isoconversional method of Vyazovkin. The results showed that the thermal decomposition occurred in two stages. The first step was the decomposition process of Ag2O to form porous silver particles as a complex process with the participation of at least two mechanisms, and the second step corresponded to the structural change from porous particles to silver bulk crystals as a single-step process.
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