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Development of Oil/Water/Surfactant Microemulsions as Templates for Micro and Nanostructured Metal Foams

Published online by Cambridge University Press:  01 February 2011

Catherine Cock ,
Woo Renee ,
Brenda O'Neil ,
McKenzie Leigh ,
Jason Manning  and
Martin Gerard Bakker
Catherine Cock
Affiliation:
The University of Alabama, Chemistry, Box 870336, Tuscaloosa, AL, 35487-0336, United States, 2053489116, 2053489104
Woo Renee
Affiliation:
bamawooski@gmail.com, The University of Alabama, Chemistry, Tuscaloosa, AL, 35487-0336, United States
Brenda O'Neil
Affiliation:
onealb@ecs.k12.al.us, The University of Alabama, Center for Materials for Information Technologies, Tuscaloosa, AL, 35487-0209, United States
McKenzie Leigh
Affiliation:
mckenziel@ecs.k12.al.us, The University of Alabama, Center for Materials for Information Technologies, Tuscaloosa, AL, 35487-0209, United States
Jason Manning
Affiliation:
manni002@bama.ua.edu, The University of Alabama, Center for Materials for Information Technologies, Tuscaloosa, AL, 35487-0209, United States
Martin Gerard Bakker
Affiliation:
Bakker@bama.ua.edu, The University of Alabama, Center for Materials for Information Technologies, Tuscaloosa, AL, 35487-0209, United States
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Abstract

There are a range of applications for bicontinuous metal micro and nanostructures including as porous electrodes for supercapacitors, in fuel cells and in advanced batteries. We have previously demonstrated a number of methods of generating metal nanostructures by electrodeposition into various templates including hexagonal surfactant phases and mesoporous silica. More recently we have been exploring the application of oil-in-water microemulsions as templates. We have found empirically that the formation of microstructure is strongly effected by the viscosity of the oil phase, the rate of metal electroreduction and the surface roughness of the substrate. We interpret these observations as reflecting a competition between growth of the metal around the oil droplet and the redistribution of the oil in front of the growing metal film. We are currently exploring bicontinuous and water-in-oil phases with the expectation that such templates will yield bicontinuous metal films with larger accessible surface areas. Preliminary results with water-in-oil phases appear to show the formation of bicontinuous nanostructured films on the 20 nm length scale.

Keywords

electrodepositionmicrostructureself-assembly
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1059: Symposium KK – Nanoscale Pattern Formation , 2007 , 1059-KK10-32
Copyright
Copyright © Materials Research Society 2008

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References

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