Kinetics of the thermal decomposition of anhydrous cobalt nitrate by SCRT method

被引:0
作者
A. Ortega
M. Macías
F. J. Gotor
机构
[1] Centro Mixto C.S.I.C/Universidad de Sevilla,Instituto de Ciencia de Materiales de Sevilla
来源
Journal of Thermal Analysis and Calorimetry | 2009年 / 98卷
关键词
Cobalt Nitrate; Thermal analysis; Isoconversional methods; Reduced rate; Master plots; SCRT; Galwey method; Pseudoisotherm;
D O I
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中图分类号
学科分类号
摘要
It has been shown the ability of the Sample Controlled Reaction Temperature (SCRT) method for both discriminate the kinetic law and calculate the activation energy of the reaction. This thermal decomposition is best described by a Johnson–Mehl–Avrami kinetic model (with n = 2) with an activation energy of nuclei growth which fall in the range 52–59 kJ mol−1. The process is not a single-step because the initial rate of decomposition is likely to be limited by nucleation. The results reported here constitute the first attempt to use the new SCRT method to study the kinetic of the thermal decomposition of cobalt nitrate.
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页码:441 / 448
页数:7
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