Comparative study on isothermal kinetics of fullerol formation under conventional and microwave heating |
| |
Authors: | Borivoj Adnaevi Mihajlo Gigov Milena Sindjic Jelena Jovanovi |
| |
Affiliation: | aFaculty of Physical Chemistry, University of Belgrade, Studentski Trg 12-16, P.O. Box 137, 11001 Belgrade, Serbia |
| |
Abstract: | The kinetic of fullerol formation in the presence of cetyl trimethyl ammonium bromide (CTAB) as a phase transfer catalyst both under conventional and microwave heating conditions was investigated. It was found that the activation energy (Ea) for the investigated processes under microwave heating was two to four times lower than for the same, conventionally heated process. Also, the pre-exponential factor (ln A) was 436–4200 times lower for the microwave heating process. The differences in the kinetic parameters (activation energy and pre-exponential factor) of the process under microwaves can be explained with the specific (non-thermal) activation of centres of the newly formed phase due to the electromagnetic energy absorption. |
| |
Keywords: | Fullerol Kinetics Microwave irradiation Activation energy Phase transfer catalyst |
本文献已被 ScienceDirect 等数据库收录! |