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Watching Mesoporous Metal Films Grow During Templated Electrodeposition with In Situ SAXS

Abstract

In this paper, we monitor real-time growth of mesoporous platinum during electrodeposition using small-angle X-ray scattering (SAXS). Previously we have demonstrated that platinum films featuring ‘single diamond’ (Fd3m) morphology can be produced from ‘double diamond’ (Pn3m) lipid cubic phase templates; the difference in symmetry provides additional scattering signals unique to the metal. Taking advantage of this, we present simultaneous in situ SAXS / electrochemical measurement as the platinum nanostructures grow within the lipid template. This measurement allows us to correlate the nanostructure appearance with the deposition current density and to monitor the evolution of orientational and lateral ordering of the lipid and platinum during deposition and after template removal. In other periodic metal nanomaterials deposited within any of the normal topology liquid crystal, mesoporous silica or block copolymer templates previously published, the template and emerging metal have the same symmetry, so such a study has not previously been possible.

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Publication details

The article was accepted on 01 Jun 2017 and first published on 08 Jun 2017


Article type: Paper
DOI: 10.1039/C7NR03321D
Citation: Nanoscale, 2017, Accepted Manuscript
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    Watching Mesoporous Metal Films Grow During Templated Electrodeposition with In Situ SAXS

    S. J. Richardson, M. R. Burton, X. Luo, P. A. Staniec, I. Nandhakumar, N. J. Terrill, J. M. Elliott and A. M. Squires, Nanoscale, 2017, Accepted Manuscript , DOI: 10.1039/C7NR03321D

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