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Delamination and re-assembly of surfactant-containing Li/Al layered double hydroxides

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Authors
Singh, Mahua
Ogden, Mark
Parkinson, Gordon
Buckley, Craig
Connolly, Joan
Date
2004
Type
Journal Article

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Singh, Mahua and Ogden, Mark and Parkinson, Gordon and Buckley, Craig and Connolly, Joan. 2004. Delamination and re-assembly of surfactant-containing Li/Al layered double hydroxides. Journal of Materials Chemistry. 14: pp. 871-874.
Source Title
Journal of Materials Chemistry
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Faculty
Department of Applied Chemistry
School of Science
Faculty of Science and Engineering
Remarks

This journal is © The Royal Society of Chemistry 2004

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Abstract

Exchange of the chloride anion intercalated in [LiAl2(OH)6]Cl.nH2O with a range of surfactants is reported. Attempts to delaminate (or exfoliate) the surfactant-exchanged intercalates, where the surfactant was an alkyl sulfate, were unsuccessful. In contrast, delamination of the layered double hydroxides [LiAl2(OH)6][C12H25C6H4SO3.nH2O] and [LiAl2(OH)6][C8H17C6H4SO3.nH2O] was successful. The necessity of the alkyl chain of the surfactants was demonstrated by the failure of [LiAl2(OH)6][CH3C6H4SO3.nH2O] to delaminate. The delamination of the unique Li/Al LDH is thus found to be dependent on the guest surfactant structure in terms of both chain length and head group moiety.