Mesoporous Gold Sponge

CSIRO Publishing
Publication Type:
Journal Article
Cortie Michael et al. 2007, 'Mesoporous Gold Sponge', CSIRO, vol. 60, no. 7, pp. 524-527.
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Mesoporous gold sponge may be prepared by the removal of aluminium from AuAl2 by an alkaline leach. The resulting material has nanoscale pores and channels, with a high specific surface area that can be exploited in electrochemical applications. For example, the material could conceivably serve as the basis of a more sensitive capacitive sensor or biosensor, as an electrode material for a high efficiency ultracapacitor, as the semi-transparent current collector in a dye sensitised photovoltaic cell, or as the lithium-storage electrode in a lithium ion cell. The properties of the sponge may be controlled by varying its density, pore size, and pore size distribution, factors which are in turn controlled by the microstructure of the precursor compound and the conditions of deposition.
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