中國有色金屬學(xué)報(英文版)
Transactions of Nonferrous Metals Society of China
| Vol. 26 No. 4 April 2016 |
（1. Department of Materials Science and Engineering,
Shahid Bahonar University of Kerman, P. O. Box No. 76135-133, Kerman, Iran;
2. Department of Advanced Science and Technology,
Shahid Bahonar University of Kerman, P. O. Box No. 76135-133, Kerman, Iran;
3. Mineral Industries Research Centre, Shahid Bahonar University of Kerman, P. O. Box No. 76135-133, Kerman, Iran）
Abstract:The non-isothermal kinetics of CdO nanoparticles prepared from CdCO3 precursor using thermal decomposition method was investigated. A model-fitting Malek approach and a model-free advanced isoconversional method of Vyazovkin were applied to the analysis of the DSC and TGA data. The results showed that CdO nanoparticles prepared from CdCO3 followed an autocatalytic reaction. Sestak–Berggren model could favorably describe the studied reaction process. Moreover, the apparent activation energy of CdCO3 decomposition was calculated to be (119.19±9.97) kJ/mol and the explicit rate equation form of CdCO3 decomposition was established.
Key words: CdCO3; CdO nanoparticle; kinetic modeling; thermal decomposition; advanced isoconversional method
