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Control of partial coalescence of self-assembled metal nano-particles across lyotropic liquid crystals templates towards long range meso-porous metal frameworks design

Dumée, Ludovic F., Lemoine, Jean-Baptiste, Ancel, Alice, Hameed, Nishar, He, Li and Kong, Lingxue 2015, Control of partial coalescence of self-assembled metal nano-particles across lyotropic liquid crystals templates towards long range meso-porous metal frameworks design, Nanomaterials, vol. 5, no. 4, pp. 1766-1781, doi: 10.3390/nano5041766.

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Title Control of partial coalescence of self-assembled metal nano-particles across lyotropic liquid crystals templates towards long range meso-porous metal frameworks design
Author(s) Dumée, Ludovic F.
Lemoine, Jean-Baptiste
Ancel, Alice
Hameed, Nishar
He, Li
Kong, Lingxue
Journal name Nanomaterials
Volume number 5
Issue number 4
Start page 1766
End page 1781
Total pages 16
Publisher M D P I AG
Place of publication Basel, Switzerland
Publication date 2015-10-26
ISSN 2079-4991
Keyword(s) meso-porous metal framework
lyotropic liquid crystals templating
metal nano-particle coalescence
SAXS ordered phase shifts
interface nano-particle coalescence
Summary The formation of purely metallic meso-porous metal thin films by partial interface coalescence of self-assembled metal nano-particles across aqueous solutions of Pluronics triblock lyotropic liquid crystals is demonstrated for the first time. Small angle X-ray scattering was used to study the influence of the thin film composition and processing conditions on the ordered structures. The structural characteristics of the meso-structures formed demonstrated to primarily rely on the lyotropic liquid crystal properties while the nature of the metal nano-particles used as well as the their diameters were found to affect the ordered structure formation. The impact of the annealing temperature on the nano-particle coalescence and efficiency at removing the templating lyotropic liquid crystals was also analysed. It is demonstrated that the lyotropic liquid crystal is rendered slightly less thermally stable, upon mixing with metal nano-particles and that low annealing temperatures are sufficient to form purely metallic frameworks with average pore size distributions smaller than 500 nm and porosity around 45% with potential application in sensing, catalysis, nanoscale heat exchange, and molecular separation.
Language eng
DOI 10.3390/nano5041766
Field of Research 030302 Nanochemistry and Supramolecular Chemistry
Socio Economic Objective 869999 Manufacturing not elsewhere classified
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2015, The Authors
Free to Read? Yes
Use Rights Creative Commons Attribution licence
Persistent URL http://hdl.handle.net/10536/DRO/DU:30079872

Document type: Journal Article
Collections: Institute for Frontier Materials
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Created: Fri, 27 Nov 2015, 09:10:39 EST

Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.