Opto-isolation of electrochemical systems in cavitation environments
Opto-isolation of electrochemical systems in cavitation environments
An electrochemical technique that can detect inertial cavitation within an ultrasonic reactor is reported. The technique relies on the erosion and repassivation of an oxide covered electrode (specifically aluminum). The sensitivity of the technique (<46 fg per erosion event) is significantly greater than normal weight loss measurements. A novel opto-isolation system is discussed which enables the electrochemical measurements to be undertaken within an earthed metallic container. Events detected in this manner are reported and compared to the noise in the absence of appropriate isolation. This system is combined with a multichannel analyzer to map the erosion/corrosion activity within an operating ultrasonic bath.
5064-5069
Vian, Christopher J.B.
c5ca4c67-5a34-475e-b99b-04593f9c6cc9
Birkin, Peter R.
ba466560-f27c-418d-89fc-67ea4f81d0a7
Leighton, Timothy G.
3e5262ce-1d7d-42eb-b013-fcc5c286bbae
2009
Vian, Christopher J.B.
c5ca4c67-5a34-475e-b99b-04593f9c6cc9
Birkin, Peter R.
ba466560-f27c-418d-89fc-67ea4f81d0a7
Leighton, Timothy G.
3e5262ce-1d7d-42eb-b013-fcc5c286bbae
Vian, Christopher J.B., Birkin, Peter R. and Leighton, Timothy G.
(2009)
Opto-isolation of electrochemical systems in cavitation environments.
Analytical Chemistry, 81 (12), .
(doi:10.1021/ac802561k).
(PMID:19441826)
Abstract
An electrochemical technique that can detect inertial cavitation within an ultrasonic reactor is reported. The technique relies on the erosion and repassivation of an oxide covered electrode (specifically aluminum). The sensitivity of the technique (<46 fg per erosion event) is significantly greater than normal weight loss measurements. A novel opto-isolation system is discussed which enables the electrochemical measurements to be undertaken within an earthed metallic container. Events detected in this manner are reported and compared to the noise in the absence of appropriate isolation. This system is combined with a multichannel analyzer to map the erosion/corrosion activity within an operating ultrasonic bath.
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Published date: 2009
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Local EPrints ID: 148659
URI: http://eprints.soton.ac.uk/id/eprint/148659
ISSN: 0003-2700
PURE UUID: 9cb28ab0-ade7-4d81-8c94-90d529e6969b
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Date deposited: 30 Apr 2010 09:23
Last modified: 14 Mar 2024 02:37
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Author:
Christopher J.B. Vian
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