Electro-deposition of gold nano-structures on gold Quartz Crystal Microbalance (QCM) electrodes for enhanced mercury vapour sensitivity in the presence of interferent gasses

Sabri, Y, Ippolito, S, Tardio, J, Sood, D and Bhargava, S 2008, 'Electro-deposition of gold nano-structures on gold Quartz Crystal Microbalance (QCM) electrodes for enhanced mercury vapour sensitivity in the presence of interferent gasses', in P. Mulvaney and A. Khan (ed.) Proceedings of ICONN 2008, Melbourne, Australia, 25-29 February 2008, pp. 71-74.


Document type: Conference Paper
Collection: Conference Papers

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Title Electro-deposition of gold nano-structures on gold Quartz Crystal Microbalance (QCM) electrodes for enhanced mercury vapour sensitivity in the presence of interferent gasses
Author(s) Sabri, Y
Ippolito, S
Tardio, J
Sood, D
Bhargava, S
Year 2008
Conference name 2008 International Conference on Nanoscience and Nanotechnology
Conference location Melbourne, Australia
Conference dates 25-29 February 2008
Proceedings title Proceedings of ICONN 2008
Editor(s) P. Mulvaney
A. Khan
Publisher IEEE
Place of publication United States
Start page 71
End page 74
Abstract Gold electrode quartz crystal microbalances (QCMs) were used as transducing platform to detect and sense elemental mercury (Hg) in gas phase. The enhanced sensitivity, resulting form the electro-deposition of gold nano-structures on the surface is shown to increase the response magnitude (RM) of the sensors in the presence of ammonia and humidity interference. The concentration of NH3 and H2O was varied in the range 590 to 1770mg/m3 and 4.2 to 10.4mg/m3, respectively. A constant gas flow of 200sccm, balanced in nitrogen was used as the carrier gas. The RM for Hg was enhanced by creating nanostructures on the sensorpsilas gold electrodes via electro-deposition of gold in a lead acetate electrolyte. The results presented are a critical step in the development of a cheap regenerable and reliable sensor for measuring Hg in the presence of interferents gases commonly found in industrial applications.
Subjects Sensor Technology (Chemical aspects)
Keyword(s) electro-deposition
QCM
gold
mercury-sensing
ammonia
humidity
interference
DOI - identifier 10.1109/ICONN.2008.4639248
Copyright notice © 2008 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
ISBN 9781424415038
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