Kinetics of formation of ZnSe nanocrystals under linear temperature increase condition

Huan Yong Li, Rong Zu Hu, Hong Zhang, Wan Qi Jie

科研成果: 期刊稿件文章同行评审

3 引用 (Scopus)

摘要

The kinetics of formation of ZnSe nanocrystals from the complex ZnSe(C2H8N2) has been investigated by means of non-isothermal TG-DTG at various heating rates of 5.0, 10.0, 15.0 and 20.0°C·min-1. The results show that the formation of ZnSe nanocrystals was controlled by three-dimension diffusion. The most probable kinetic function in differential form, and in integral form, the apparent activation energy(E) and the pre-exponential constant(A) of the process are f(α) = {3/2(1 + α)2/3[(1 + α)1/3 - 1]-1}, G(α) = [(1 + α)1/3 - 1]2, 209.61 kJ·mol-1 and 1015.7 s-1, respectively. The kinetics equation is dα/dt = 1015.7{3/2(1 + α)2/3[(1 + α)1/3 - 1]-1}exp(-25211.7/T) The calculated results are in accordance with the experiments. ZnO nanocrystal with less than 40 nm size has also been obtained from ZnSe nanocrystals.

源语言英语
页(从-至)315-319
页数5
期刊Wuli Huaxue Xuebao/ Acta Physico - Chimica Sinica
19
4
出版状态已出版 - 1 4月 2003

指纹

探究 'Kinetics of formation of ZnSe nanocrystals under linear temperature increase condition' 的科研主题。它们共同构成独一无二的指纹。

引用此