Jump to main content
Jump to site search
PLANNED MAINTENANCE Close the message box

Scheduled maintenance upgrade on Thursday 4th of May 2017 from 8.00am to 9.00am (BST).

During this time our websites will be offline temporarily. If you have any questions please use the feedback button on this page. We apologise for any inconvenience this might cause and thank you for your patience.


Issue 13, 2006
Previous Article Next Article

Intercalation chemistry of the novel layered double hydroxides [MAl4(OH)12](NO3)2·yH2O (M = Zn, Cu, Ni and Co). 1: New organic intercalates and reaction mechanisms

Author affiliations

Abstract

The intercalation chemistry of a recently synthesized family of layered double hydroxides, [MAl4(OH)12](NO3)2·yH2O (M = Zn, Cu, Ni, Co), has been explored. A range of dicarboxylates, mono- and disulfonates have been intercalated successfully, and the resulting materials fully characterised. The interlayer spacing of the dicarboxylates is found not to vary linearly with the length of the carboxylate chain, but instead the acid species are arranged so that the ends of the dicarboxylate chains point directly at the localized metal atoms in the layers. In situ diffraction experiments have been performed to investigate the kinetics and mechanisms of the intercalation processes. The dicarboxylates are found to intercalate very quickly, with the reactions being complete within a few minutes at room temperature. In contrast, the sulfonates intercalate more slowly, and quantitative kinetic parameters may be measured for these reactions. All the reactions were found to be direct one-step transformations. The sulfonate intercalation processes are proposed to be nucleation controlled in the vast majority of cases for the M = Zn, Cu and Co materials, with the rate limiting step being the expansion of the interlayer space to accommodate the relatively large organic guest anions. In contrast, the reactions of the M = Ni LDH are found to be purely diffusion controlled: as soon as the guest reaches the host particles, it intercalates.

Graphical abstract: Intercalation chemistry of the novel layered double hydroxides [MAl4(OH)12](NO3)2·yH2O (M = Zn, Cu, Ni and Co). 1: New organic intercalates and reaction mechanisms

Back to tab navigation
Please wait while Download options loads

Supplementary files

Publication details

The article was received on 19 Oct 2005, accepted on 08 Dec 2005 and first published on 06 Jan 2006


Article type: Paper
DOI: 10.1039/B514874J
Citation: J. Mater. Chem., 2006,16, 1222-1230
  •   Request permissions

    Intercalation chemistry of the novel layered double hydroxides [MAl4(OH)12](NO3)2·yH2O (M = Zn, Cu, Ni and Co). 1: New organic intercalates and reaction mechanisms

    G. R. Williams, T. G. Dunbar, A. J. Beer, A. M. Fogg and D. O'Hare, J. Mater. Chem., 2006, 16, 1222
    DOI: 10.1039/B514874J

Search articles by author