期刊
ELECTROCHEMISTRY COMMUNICATIONS
卷 11, 期 8, 页码 1635-1638出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2009.06.017
关键词
Electrophoresis; Nanocomposites; Nanoplatelets; Nanostructure; Biomimetics
资金
- University of Florida
- NSF [CBET-0651780, CBET-0744879]
Bio-inspired assembly of platelet particles and polyelectrolytes into ordered layered composites is of great technological importance in developing light-weight reinforced materials, separation membranes, and gas-barrier coatings. Unfortunately, the broadly applied layer-by-layer self-assembly technology is tedious in generating thick multilayered coatings. Here, we report a rapid and scalable cathodic electrophoretic co-deposition technology that enables simultaneous assembly of positively charged gibbsite nanoplatelets and cationic polyelectrolytes into ordered multilayers in a single step. The resulting nanocomposites have similar organic/inorganic weight ratio and ordered brick-and-mortar nanostructure as natural nacres. Nanoindentation tests show that the electrodeposited nanocomposites exhibit similar hardness and reduced modulus as those of pure gibbsite coatings. Published by Elsevier B.V.
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