Preparation of Layered Double-Hydroxide Nanomaterials with a Uniform Crystallite Size Using a New Method Involving Separate Nucleation and Aging Steps
作者： Yun Zhao , Feng Li , Rui Zhang , David G. Evans , Xue Duan
DOI: 10.1021/CM020370H
关键词:
摘要: In particle formation, the method can be just as important as the chemical reaction involved. A new method of synthesizing hydrotalcite-like layered double hydroxides (LDHs) of the type [Mg1-x Al x (OH) 2] x+(CO32-) x/2⊙ y H2O (x= 1.7− 3.3) is reported. The key features of this method are a very rapid mixing and nucleation process in a colloid mill followed by a separate aging process. The properties of the resulting LDHs are compared with those of materials produced using the conventional coprecipitation process at constant pH. The …
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