Electrodeposition of metals from supercritical fluids

Ke, Jie, Su, Wenta, Howdle, Steven M., George, Michael W., Cook, David, Perdjon-Abel, Magda, Bartlett, Philip N., Zhang, Wenjian, Cheng, Fei, Levason, William, Reid, Gillian, Hyde, Jason, Wilson, James, Smith, David C., Mallik, Kanad and Sazio, Pier (2009) Electrodeposition of metals from supercritical fluids Proceedings of the National Academy of Sciences of the United States of America, 106, (35), pp. 14768-14772. (doi:10.1073/pnas.0901986106).


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Electrodeposition is a widely used materials-deposition technology with a number of unique features, in particular, the efficient use of starting materials, conformal, and directed coating. The properties of the solvent medium for electrodeposition are critical to the technique's applicability. Supercritical fluids are unique solvents which give a wide range of advantages for chemistry in general, and materials processing in particular. However, a widely applicable approach to electrodeposition from supercritical fluids has not yet been developed. We present here a method that allows electrodeposition of a range of metals from supercritical carbon dioxide, using acetonitrile as a co-solvent and supercritical difluoromethane. This method is based on a careful selection of reagent and supporting electrolyte. There are no obvious barriers preventing this method being applied to deposit a range of materials from many different supercritical fluids. We present the deposition of 3-nm diameter nanowires in mesoporous silica templates using this methodology

Item Type: Article
Digital Object Identifier (DOI): doi:10.1073/pnas.0901986106
ISSNs: 0027-8424 (print)
Related URLs:
ePrint ID: 70885
Date :
Date Event
September 2009Published
Date Deposited: 24 Feb 2010
Last Modified: 18 Apr 2017 21:06
Further Information:Google Scholar
URI: http://eprints.soton.ac.uk/id/eprint/70885

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