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Electrodeposition of Mesoporous Silica on 3-D Scaffolds as Templates for 3-D Porous Metal Electrodes

Published online by Cambridge University Press:  31 January 2011

Nikolas Cordes  and
Martin Bakker
Nikolas Cordes
Affiliation:
corde004@bama.ua.edu, The University of Alabama, Chemistry, Tuscaloosa, Alabama, United States
Martin Bakker
Affiliation:
Bakker@bama.ua.edu, The University of Alabama, Chemistry, Box 870336, Tuscaloosa, Alabama, AL 35487-0336, United States
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Abstract

Supercapacitors and advanced batteries capable of rapid charge and discharge need conductive three dimensional porous electrodes. The high conductivities of porous metal electrodes are attractive. However, the surface areas of such electrodes are still well short of those achievable in carbon. One approach to formation of high surface area porous metal electrodes is to electrodeposit metal into nanostructured templates on 3-D scaffolds such as nickel foam. By careful control of composition and voltage thin films of mesoporous silica can be deposited onto these 3-D templates. Removal of the templating surfactant produces a very high surface area mesoporous coating. Metal can then be plated into the mesoporous silica, which, after removal of the silica, leaves a high surface area 3-D porous electrode.

Keywords

electrochemical synthesismetallic conductornanostructure
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1214: Symposium U – Materials Challenges Facing Electrical Energy Storage , 2009 , 1214-U04-09
Copyright
Copyright © Materials Research Society 2010

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