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-f...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 Ag2 O 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.展开更多
文摘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 Ag2 O 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.