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Electrochemical studies of the inhibition of zinc corrosion in hydrochloric acid by phosphonium salts

Electrochemical studies of the inhibition of zinc corrosion in hydrochloric acid by phosphonium salts
Electrochemical studies of the inhibition of zinc corrosion in hydrochloric acid by phosphonium salts
The performance of five synthesised phosphonium salts, 4-tolyltriphenyl-phosphonium chloride (TTPPC), 4-phenoltriphenylphosphonium chloride (PTPPC), 4-anilinetriphenylphosphonium bromide (ATPPB), 4-benzyl alcoholtriphenylphosphonium chloride (BATPPC), 4-chlorophenyltriphenylphosphonium bromide (CPTPPB) and two commercially available phosphonium salts, tetraphenylphosphonium bromide (TPPB) and methyltriphenylphosphonium bromide (MTPPB) for the inhibition of zinc corrosion in 1 M HCl at 22 ºC has been quantified using electrochemical techniques. The inhibitor concentration ranged from 1*10-3 to 1*10-7 mol dm-3. The degree of corrosion inhibition for zinc in 1 M HCl at 22 ºC was found to be in the order: CPTPPB > TTPPC > TPPB > PTPPC > BATPPC > MTPPB > ATPPB.
adsorption, polarisation, Tafel region, voltammetry
1068-3755
Harvey, Terence
3b94322b-18da-4de8-b1af-56d202677e04
Walsh, Frank
309528e7-062e-439b-af40-9309bc91efb2
Nahlé, A.H.
d5b07ebd-09fb-4260-bff9-9ff1df45576f
Harvey, Terence
3b94322b-18da-4de8-b1af-56d202677e04
Walsh, Frank
309528e7-062e-439b-af40-9309bc91efb2
Nahlé, A.H.
d5b07ebd-09fb-4260-bff9-9ff1df45576f

Harvey, Terence, Walsh, Frank and Nahlé, A.H. (2019) Electrochemical studies of the inhibition of zinc corrosion in hydrochloric acid by phosphonium salts. Surface Engineering and Applied Electrochemistry. (In Press)

Record type: Article

Abstract

The performance of five synthesised phosphonium salts, 4-tolyltriphenyl-phosphonium chloride (TTPPC), 4-phenoltriphenylphosphonium chloride (PTPPC), 4-anilinetriphenylphosphonium bromide (ATPPB), 4-benzyl alcoholtriphenylphosphonium chloride (BATPPC), 4-chlorophenyltriphenylphosphonium bromide (CPTPPB) and two commercially available phosphonium salts, tetraphenylphosphonium bromide (TPPB) and methyltriphenylphosphonium bromide (MTPPB) for the inhibition of zinc corrosion in 1 M HCl at 22 ºC has been quantified using electrochemical techniques. The inhibitor concentration ranged from 1*10-3 to 1*10-7 mol dm-3. The degree of corrosion inhibition for zinc in 1 M HCl at 22 ºC was found to be in the order: CPTPPB > TTPPC > TPPB > PTPPC > BATPPC > MTPPB > ATPPB.

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Manuscript (Revised) (May 26 2019) - Accepted Manuscript
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Accepted/In Press date: 26 May 2019
Keywords: adsorption, polarisation, Tafel region, voltammetry

Identifiers

Local EPrints ID: 433418
URI: http://eprints.soton.ac.uk/id/eprint/433418
ISSN: 1068-3755
PURE UUID: 34cbc8a3-a05f-498c-8122-0dc41d0980a2

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Date deposited: 21 Aug 2019 16:30
Last modified: 16 Mar 2024 03:34

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Contributors

Author: Terence Harvey
Author: Frank Walsh
Author: A.H. Nahlé

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