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Ultrathin uniform platinum nanowires via a facile route using an inverse hexagonal surfactant phase template

Akbar, S., Boswell, J., Worsley, C., Elliott, J. M. and Squires, A. M. (2018) Ultrathin uniform platinum nanowires via a facile route using an inverse hexagonal surfactant phase template. Langmuir, 34 (24). pp. 6991-6996. ISSN 1520-5827

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To link to this item DOI: 10.1021/acs.langmuir.7b03970

Abstract/Summary

We present an attractive method for the fabrication of long, straight, highly crystalline, ultrathin platinum nanowires. The fabrication is simply achieved using an inverse hexagonal (HII) lyotropic liquid crystal phase of the commercial surfactant phytantriol as a template. A platinum precursor dissolved within the cylindrical aqueous channels of the liquid crystal phase is chemically reduced by galvanic displacement using stainless steel. We demonstrate the production of nanowires using the HII phase in the phytantriol/water system which we obtain either by heating to 55 °C or at room temperature by the addition of a hydrophobic liquid, 9-cis-tricosene, to relieve packing frustration. The two sets of conditions produced high aspect nanowires with diameters of 2.5 and 1.7 nm, respectively, at least hundreds of nanometers in length, matching the size of the aqueous channels in which they grow. This versatile approach can be extended to produce highly uniform nanowires from a range of metals.

Item Type:Article
Refereed:Yes
Divisions:Faculty of Life Sciences > School of Chemistry, Food and Pharmacy > Department of Chemistry
ID Code:77867
Uncontrolled Keywords:Spectroscopy, Electrochemistry, General Materials Science, Surfaces and Interfaces, Condensed Matter Physics
Publisher:American Chemical Society

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