Synthesis of magnesium aluminium layered double hydroxides in reverse microemulsions

被引：98

作者：

Hu, Gang ^{[1
]}

Wang, Nan ^{[1
]}

O'Hare, Dermot ^{[1
]}

Davis, J. J. ^{[1
]}

机构：

[1] Univ Oxford, Chem Res Lab, Oxford OX1 3TA, England

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2007年 / 17卷 / 21期

关键词：

D O I：

10.1039/b700305f

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Reverse microemulsions have been used to control the nucleation and growth of magnesium aluminium layered double hydroxides ( LDH). The reactants were prepared in aqueous solution and then dispersed in an isooctane-sodium dodecyl sulfate ( DDS) microemulsion. Under these conditions magnesium aluminium LDH phases were obtained containing DDS as the charge-balancing interlayer anion. By adjusting the water : surfactant molar ratio ( w = [ H2O]/[ Surf.]) of the microemulsion we were able to control the nucleation and growth of the LDH phases. In some cases LDH nanoplatelets exhibiting a uniform 14 angstrom monolayer thickness could be isolated and characterized by AFM.

引用

页码：2257 / 2266

页数：10

共 43 条

[1] Delamination of layered double hydroxides by use of surfactants [J].