Synthesis and study of Mg(Ni, Co, Li)Al-LDH prepared by mechanochemical method

MgAl-, NiAl-, CoAl and LiAl- layered double hydroxides (LDH) were prepared by mechanochemical method. The conditions of mechanochemical synthesis of the single phase LDH with specified composition were optimized. It was shown that application of the steel milling bodies allowed carrying out of the synthesis in the most severe conditions (acceleration 1000 m s−2, time of activation 30 minutes) and promoted deeper reaction between initial components. It was found that for the synthesis of single-phase MgAl-, NiAl- and CoAl-LDH, the corresponding metal hydroxides and sodium carbonate should be used, and to obtain LiAl-LDH, aluminum hydroxide and lithium nitrate should be selected as initial reagents.MgAl-, NiAl-, CoAl and LiAl- layered double hydroxides (LDH) were prepared by mechanochemical method. The conditions of mechanochemical synthesis of the single phase LDH with specified composition were optimized. It was shown that application of the steel milling bodies allowed carrying out of the synthesis in the most severe conditions (acceleration 1000 m s−2, time of activation 30 minutes) and promoted deeper reaction between initial components. It was found that for the synthesis of single-phase MgAl-, NiAl- and CoAl-LDH, the corresponding metal hydroxides and sodium carbonate should be used, and to obtain LiAl-LDH, aluminum hydroxide and lithium nitrate should be selected as initial reagents.