Thermal Analysis On The Kinetics Of Magnesium-Aluminum Layered Double Hydroxides In Different Heating Rates

Archives of Metallurgy and Materials

G. Hong¹  W. Xu¹  Y. Hongbo¹  C. Meiling¹ 

[1]LIAONING KEY LABORATORY FOR FABRICATION AND APPLICATION OF SUPER-FINE INORGANIC POWDERS, DALIAN JIAOTONG UNIVERSITY, 116028, DALIAN, CHINA

关键词: Keywords: Layered double hydroxides;    Thermal analysis;    Kinetic;   

DOI  :  10.1515/amm-2015-0130

学科分类：金属与冶金

来源: Akademia Gorniczo-Hutnicza im. Stanislawa Staszica / University of Mining and Metallurgy

【 摘 要 】

The thermal decomposition of magnesium-aluminum layered double hydroxides (LDHs) was investigated by thermogravimetry analysis and differential scanning calorimetry (DSC) methods in argon environment. The influence of heating rates (including 2.5, 5, 10, 15 and 20K/min) on the thermal behavior of LDHs was revealed. By the methods of Kissinger and Flynn-Wall-Ozawa, the thermal kinetic parameters of activation energy and pre-exponential factor for the exothermic processes under non-isothermal conditions were calculated using the analysis of corresponding DSC curves.

【 授权许可】

Unknown