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Sensors for corrosion detection: measurement of copper ions in 3.5% sodium chloride using screen-printed platinum electrodes

Sensors for corrosion detection: measurement of copper ions in 3.5% sodium chloride using screen-printed platinum electrodes
Sensors for corrosion detection: measurement of copper ions in 3.5% sodium chloride using screen-printed platinum electrodes
Planar screen-printed platinum electrodes developed for use in corrosion monitoring have been evaluated using cyclic differential pulse voltammetry and shown to detect cupric ions (Cu2+) over a range up to 100 mM in a background of 3.5% by weight sodium chloride solution. The reduction of Cu2+ to metallic copper is shown to proceed as two successive single-electron transfer reactions involving an intermediate chemical step where the cuprous ion (Cu+) is complexed by chloride to form the dichlorocuprous anion CuCl2-. By comparison, the complexation step during the oxidation of copper to Cu2+ can involve a number of different chlorocopper(I) complexes of the general form [CuCl(n+1)]n- depending on the chloride concentration, which can make detection via a stripping reaction difficult.
chemical sensor, copper, corrosion, thick film
1530-437X
2091-2099
Cranny, Andy
2ebc2ccb-7d3e-4a6a-91ac-9f089741939e
Harris, Nick R.
237cfdbd-86e4-4025-869c-c85136f14dfd
Nie, Mengyan
a8613738-d74a-40fb-8881-08069fb0a34b
Wharton, Julian A.
965a38fd-d2bc-4a19-a08c-2d4e036aa96b
Wood, Robert J.K.
d9523d31-41a8-459a-8831-70e29ffe8a73
Stokes, Keith R.
5fb4e7f7-2f7e-4e6e-a045-6d7690626695
Cranny, Andy
2ebc2ccb-7d3e-4a6a-91ac-9f089741939e
Harris, Nick R.
237cfdbd-86e4-4025-869c-c85136f14dfd
Nie, Mengyan
a8613738-d74a-40fb-8881-08069fb0a34b
Wharton, Julian A.
965a38fd-d2bc-4a19-a08c-2d4e036aa96b
Wood, Robert J.K.
d9523d31-41a8-459a-8831-70e29ffe8a73
Stokes, Keith R.
5fb4e7f7-2f7e-4e6e-a045-6d7690626695

Cranny, Andy, Harris, Nick R., Nie, Mengyan, Wharton, Julian A., Wood, Robert J.K. and Stokes, Keith R. (2012) Sensors for corrosion detection: measurement of copper ions in 3.5% sodium chloride using screen-printed platinum electrodes. IEEE Sensors Journal, 12 (6), 2091-2099. (doi:10.1109/JSEN.2012.2183867).

Record type: Article

Abstract

Planar screen-printed platinum electrodes developed for use in corrosion monitoring have been evaluated using cyclic differential pulse voltammetry and shown to detect cupric ions (Cu2+) over a range up to 100 mM in a background of 3.5% by weight sodium chloride solution. The reduction of Cu2+ to metallic copper is shown to proceed as two successive single-electron transfer reactions involving an intermediate chemical step where the cuprous ion (Cu+) is complexed by chloride to form the dichlorocuprous anion CuCl2-. By comparison, the complexation step during the oxidation of copper to Cu2+ can involve a number of different chlorocopper(I) complexes of the general form [CuCl(n+1)]n- depending on the chloride concentration, which can make detection via a stripping reaction difficult.

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e-pub ahead of print date: 13 January 2012
Published date: June 2012
Keywords: chemical sensor, copper, corrosion, thick film
Organisations: EEE

Identifiers

Local EPrints ID: 338750
URI: http://eprints.soton.ac.uk/id/eprint/338750
ISSN: 1530-437X
PURE UUID: 950b23b4-9bc5-47b9-9ea3-5f58ae1852d4
ORCID for Nick R. Harris: ORCID iD orcid.org/0000-0003-4122-2219
ORCID for Mengyan Nie: ORCID iD orcid.org/0000-0002-7758-760X
ORCID for Julian A. Wharton: ORCID iD orcid.org/0000-0002-3439-017X
ORCID for Robert J.K. Wood: ORCID iD orcid.org/0000-0003-0681-9239

Catalogue record

Date deposited: 16 May 2012 14:41
Last modified: 18 Feb 2021 17:08

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Contributors

Author: Andy Cranny
Author: Nick R. Harris ORCID iD
Author: Mengyan Nie ORCID iD
Author: Keith R. Stokes

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