h Abdolla hian Balouc hi - Nanotechnology research center of Urm ia University, Urmia, Iran
a Hassanzadeh - Nanotechnology research center of Urm ia University, Urmia, Iran
p Biparva - R esearch Department of Chro matography, Iranian Academic Center for E ducation, Culture and Research (ACECR), U rmia Branch, Urmia, Iran

Carbon nanotubes are one of the most studied nano materials in the last fift een years. D ue to their extraordinary chemical and physica l properties that this carbon allotrope posseses has emerged as novel nanometric material, p romising in most areas of science and engineering. However, researc h on thermal properties and decomp osition reac tion for CN Ts has been slim [۱]. Our aim was to evaluate thermal ex perimental d ata of MWCNTs via t hermogravi metric analysis (TGA) by applying well known kinetic equations such as the Coats-Redfern kinetic equation and also Friedman , Flynn–Wall–Ozawa and Kissinger–Akahir a–Sunose kinetic equation at various scanning rates. Som e parameters such as activation energy, freq uency factor and also mo del of degra dation were determined and compare with those models [۲] .

Carbon nano tubes, Thermogravimetric analysis, Thermal decompos ition, Kinetics study.