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Issue 14, 2014
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Structural characterisation of a layered double hydroxide nanosheet

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Abstract

We report the atomic-scale structure of a Zn2Al–borate layered double hydroxide (LDH) nanosheet, as determined by reverse Monte Carlo (RMC) modelling of X-ray total scattering data. This study involves the extension of the RMC method to enable structural refinement of two-dimensional nanomaterials. The refined LDH models show the intra-layer geometry in this highly-exfoliated phase to be consistent with that observed in crystalline analogues, with the reciprocal-space scattering data suggesting a disordered arrangement of the Zn2+ and Al3+ cations within the nanosheet. The approach we develop is generalisable and so offers a method of characterising the structures of arbitrary nanosheet phases, including systems that support complex forms of disorder within the nanosheets themselves.

Graphical abstract: Structural characterisation of a layered double hydroxide nanosheet

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Publication details

The article was received on 07 Mar 2014, accepted on 12 May 2014 and first published on 16 May 2014


Article type: Paper
DOI: 10.1039/C4NR01265H
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Nanoscale, 2014,6, 8032-8036
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    Structural characterisation of a layered double hydroxide nanosheet

    N. P. Funnell, Q. Wang, L. Connor, M. G. Tucker, D. O'Hare and A. L. Goodwin, Nanoscale, 2014, 6, 8032
    DOI: 10.1039/C4NR01265H

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