Title :
Applications of Nano- and Mesoporous Gold in Electrodes and Electrochemical Sensors
Author :
Cortie, Michael ; Maaroof, Abbas ; Mortari, Alessia ; Wuhrer, Richard
Author_Institution :
Inst. for Nanoscale Technol., Sydney Univ. of Technol., NSW
Abstract :
A nano- or mesoporous sponge of Au is formed when the intermetallic compound AuAl2 is de-alloyed with NaOH. The large specific surface area of the sponge and the unique surface chemical properties of Au indicate that this porous material might usefully serve as an electrode in capacitive sensors or other specialized electrochemical cells. Results for some prototype sensor and energy storage systems are presented, and methods of controlling the nature of the porosity presented.
Keywords :
aluminium alloys; capacitive sensors; electrochemical sensors; electrodes; gold alloys; mesoporous materials; sodium compounds; AuAl2; NaOH; capacitive sensors; electrochemical biosensor; electrochemical sensors; electrodes; energy storage systems; intermetallic compound; mesoporous gold; Capacitive sensors; Chemical sensors; Control systems; Electrodes; Energy storage; Gold; Intermetallic; Mesoporous materials; Prototypes; Sensor systems;
Conference_Titel :
Nanoscience and Nanotechnology, 2006. ICONN '06. International Conference on
Conference_Location :
Brisbane, Qld.
Print_ISBN :
1-4244-0452-5
Electronic_ISBN :
1-4244-0452-5
DOI :
10.1109/ICONN.2006.340669
