Mesoporous Gold Sponge

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Journal Article
Australian Journal Of Chemistry, 2007, 60 (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 nanosclae pores and channels, with a high specific surface area that can be exploited in electrochemical applications. For example, the material may 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 sensitized 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 suze distribution fctors which are in turn controlled by the microstructure of the precursor compound and the conditions of deposition.
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