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Issue 16, 2012
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Surfactant directed synthesis of calcium aluminum layered double hydroxides nanoplatelets

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Abstract

The controlled nucleation and growth of dispersed nanosized calcium, aluminum layered double hydroxide [Ca2Al(OH)6DDS]·H2O (CaAl-DDS) in dodecylsulfate (DDS) derived reverse micelles has been investigated. Five different inverse micelle compositions were studied, with water:DDS (w) = 10, 20, 30, 40, and 50. These conditions were used to prepare the LDHs denoted as CaAl-DDS RMn (n = 10, 20, 30, 40 and 50). The size of the CaAl-DDS nanosheets can be controlled by the w ratio which results in the synthesis of uniform CaAl-DDS nanoplatelets ranging from 18 nm to 100 nm. AFM measurements show that CaAl-DDS nanoplatelets samples prepared in DDS derived reverse micelles with a w ratio of 50 have thickness of ca. 5 nm which correspond to 2 stacking repeats.

Graphical abstract: Surfactant directed synthesis of calcium aluminum layered double hydroxides nanoplatelets

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Publication details

The article was received on 18 Nov 2011, accepted on 22 Feb 2012 and first published on 09 Mar 2012


Article type: Paper
DOI: 10.1039/C2JM15994E
Citation: J. Mater. Chem., 2012,22, 7751-7756
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    Surfactant directed synthesis of calcium aluminum layered double hydroxides nanoplatelets

    A. Wongariyakawee, F. Schäeffel, J. H. Warner and D. O'Hare, J. Mater. Chem., 2012, 22, 7751
    DOI: 10.1039/C2JM15994E

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