Electrochemical capacitance of mesoporous gold

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dc.contributor.author Cortie, Michael en_US
dc.contributor.author Maaroof, Abbas en_US
dc.contributor.author Smith, Geoff en_US
dc.date.accessioned 2009-06-26T04:13:10Z
dc.date.available 2009-06-26T04:13:10Z
dc.date.issued 2005 en_US
dc.identifier 2005002924 en_US
dc.identifier.citation Cortie Michael, Maaroof Abbas, and Smith Geoffrey 2005, 'Electrochemical capacitance of mesoporous gold', World Gold Council, vol. 38, no. 1, pp. 14-22. en_US
dc.identifier.issn 1016-5339 en_US
dc.identifier.other C1 en_US
dc.identifier.uri http://hdl.handle.net/10453/781
dc.description.abstract The surfaces of nanoscale gold particles and components are oxide-free under normal ambient conditions. This unusual attribute permits the exploration of microstructures and functionalities that would not be feasible for less noble metals. Here we consider the electrochemical properties of mesoporous gold sponges, prepared by de-alloying an AuAl2_precursor. The sponges have a high specific surface area, with an average pore diameter of 12_nm, but are prone to sinter. They may be prepared in bulk, or, more usefully, as coatings. Their electrochemical capacitance divided by their nominal surface area is high and, at a cell voltage of 0.6_V, reaches 100_mF/cm2 for bulk samples and 2_mF/cm2 for coatings. This is up to a thousand times greater than the 50_to 100_?F/cm2 exhibited by a planar gold surface. en_US
dc.publisher World Gold Council en_US
dc.title Electrochemical capacitance of mesoporous gold en_US
dc.parent Gold Bulletin en_US
dc.journal.volume 38 en_US
dc.journal.number 1 en_US
dc.publocation UK en_US
dc.identifier.startpage 14 en_US
dc.identifier.endpage 22 en_US
dc.cauo.name INT en_US
dc.conference Verified OK en_US
dc.for 030200 en_US
dc.personcode 020302 en_US
dc.personcode 010727 en_US
dc.personcode 730312 en_US
dc.percentage 40 en_US
dc.classification.name Inorganic Chemistry en_US
dc.classification.type FOR-08 en_US
dc.custom 2.14 en_US
dc.description.keywords NA en_US
dc.staffid 730312 en_US

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