Nanocomposites of alpha-hydroxides of nickel and cobalt by delamination and co-stacking: Enhanced stability of alpha-motifs in alkaline medium and electrochemical behaviour

作者：Nethravathi C; Ravishankar N; Shivakumara C; Rajamathi Michael^*

来源：Journal of Power Sources, 2007, 172(2): 970-974.

DOI：10.1016/j.jpowsour.2007.01.098

• nickel hydroxide
• alkaline batteries
• delamination
• layered composites
• nanocomposites

Dodecylsulfate-intercalated alpha-hydroxides of nickel and cobalt delaminate to give colloidal dispersions in 1-butanol. When these colloidal dispersions are mixed in different proportions and evaporated, composites are obtained and these consist of a random stacking of layers from the two hydroxides. The surfactant anion of these composites can be exchanged with nitrate ions and the resultant nitrate-intercalated composites are very stable in alkaline medium and show a high reversible charge capacity.

• 出版日期2007-10-25