Mechanism of the Acicular Nanosize Mg,Al-Hydrotalcite Grain Growth under Hydrothermal Conditions
The highly pure acicular nanosize Mg,Al-hydrotalcite was synthesized by the one-step liquid reaction method at atmospheric pressure. The favorable growth unit in the reaction liquid, the requirements of Al3+ entering the Mg2+-(OH-)6 octahedral and forming the growth unit M-(OH-1)6 (M=Mg2+, Al3+) and growth mechanism that the nanosize Mg,Al-hydrotalcite crystal embryo follows are studied according to the test results of XRD, TEM, SEM and IR. Later, that the nanosize Mg,Alhydrotalcite crystal embryo growth follows the gathering growth theory was deeply investigated.
Wei Pan, Jianghong Gong, Chang-Chun Ge and Jing-Feng Li
Q. L. Ren et al., "Mechanism of the Acicular Nanosize Mg,Al-Hydrotalcite Grain Growth under Hydrothermal Conditions", Key Engineering Materials, Vols. 280-283, pp. 489-494, 2005