Inhibition by CO of the corrosion of Fe, Ni, and their alloys in concentrated HCl solutions

Gema Cabello; Gary Funkhouser; Juanita Cassidy; Jose F. Marco; Claudio Gutierrez; Angel Cuesta

doi:10.1016/j.jelechem.2011.05.015

Inhibition by CO of the corrosion of Fe, Ni, and their alloys in concentrated HCl solutions

Gema Cabello, Gary Funkhouser, Juanita Cassidy, Jose F. Marco, Claudio Gutierrez, Angel Cuesta

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

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Abstract

Inhibition by CO of the corrosion of Fe, Ni, and three alloys, containing either Fe and large amounts of Ni (Incoloy 825) or large amounts of Fe (Uniloy-420 and N80 steels) in solutions containing between 7.5% and 28% HCl was studied using potentiodynamic polarization curves, gravimetric tests, and FTIRS. In all cases, but Uniloy-420 in 28% HCl, a clear inhibition of corrosion in the presence of CO in the solution was shown by the gravimetric tests and from cyclic voltammetry, the inhibition being higher in the case of Ni and Ni-containing alloys. CO chemisorbed on Fe and/or Ni atoms present on the alloy surface was identified as the species responsible for corrosion inhibition. The inhibition of corrosion is higher in the cases of Ni and Incoloy 825.

Original language	English
Pages (from-to)	150-156
Number of pages	7
Journal	Journal of Electroanalytical Chemistry
Volume	662
Issue number	1
Early online date	27 May 2011
DOIs	https://doi.org/10.1016/j.jelechem.2011.05.015
Publication status	Published - 1 Nov 2011

Keywords

corrosion inhibition
adsorbed CO
Fe
Ni
concentrated HCI
FTIRS

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Accepted Manuscript
NOTICE: this is the author’s version of a work that was accepted for publication in Journal of Electroanalytical Chemistry. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in JOURNAL OF ELECTROANALYTICAL CHEMISTRY, VOL 662, ISSUE 1, (2011) DOI: 10.1016/j.jelechem.2011.05.015
Accepted author manuscript, 2.27 MBLicence: CC BY-NC-ND

Cite this

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title = "Inhibition by CO of the corrosion of Fe, Ni, and their alloys in concentrated HCl solutions",

abstract = "Inhibition by CO of the corrosion of Fe, Ni, and three alloys, containing either Fe and large amounts of Ni (Incoloy 825) or large amounts of Fe (Uniloy-420 and N80 steels) in solutions containing between 7.5% and 28% HCl was studied using potentiodynamic polarization curves, gravimetric tests, and FTIRS. In all cases, but Uniloy-420 in 28% HCl, a clear inhibition of corrosion in the presence of CO in the solution was shown by the gravimetric tests and from cyclic voltammetry, the inhibition being higher in the case of Ni and Ni-containing alloys. CO chemisorbed on Fe and/or Ni atoms present on the alloy surface was identified as the species responsible for corrosion inhibition. The inhibition of corrosion is higher in the cases of Ni and Incoloy 825.",

keywords = "corrosion inhibition, adsorbed CO , Fe, Ni, concentrated HCI, FTIRS",

author = "Gema Cabello and Gary Funkhouser and Juanita Cassidy and Marco, {Jose F.} and Claudio Gutierrez and Angel Cuesta",

note = "We thank Prof. Mª Cruz Alonso and Dr. Francisco J. Recio for useful discussions, and Mr. Nicomedes Sanrrom{\'a}n for helping us to design our spectroelectrochemical cell.",

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day = "1",

doi = "10.1016/j.jelechem.2011.05.015",

language = "English",

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journal = "Journal of Electroanalytical Chemistry",

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TY - JOUR

T1 - Inhibition by CO of the corrosion of Fe, Ni, and their alloys in concentrated HCl solutions

AU - Cabello, Gema

AU - Funkhouser, Gary

AU - Cassidy, Juanita

AU - Marco, Jose F.

AU - Gutierrez, Claudio

AU - Cuesta, Angel

N1 - We thank Prof. Mª Cruz Alonso and Dr. Francisco J. Recio for useful discussions, and Mr. Nicomedes Sanrromán for helping us to design our spectroelectrochemical cell.

PY - 2011/11/1

Y1 - 2011/11/1

N2 - Inhibition by CO of the corrosion of Fe, Ni, and three alloys, containing either Fe and large amounts of Ni (Incoloy 825) or large amounts of Fe (Uniloy-420 and N80 steels) in solutions containing between 7.5% and 28% HCl was studied using potentiodynamic polarization curves, gravimetric tests, and FTIRS. In all cases, but Uniloy-420 in 28% HCl, a clear inhibition of corrosion in the presence of CO in the solution was shown by the gravimetric tests and from cyclic voltammetry, the inhibition being higher in the case of Ni and Ni-containing alloys. CO chemisorbed on Fe and/or Ni atoms present on the alloy surface was identified as the species responsible for corrosion inhibition. The inhibition of corrosion is higher in the cases of Ni and Incoloy 825.

AB - Inhibition by CO of the corrosion of Fe, Ni, and three alloys, containing either Fe and large amounts of Ni (Incoloy 825) or large amounts of Fe (Uniloy-420 and N80 steels) in solutions containing between 7.5% and 28% HCl was studied using potentiodynamic polarization curves, gravimetric tests, and FTIRS. In all cases, but Uniloy-420 in 28% HCl, a clear inhibition of corrosion in the presence of CO in the solution was shown by the gravimetric tests and from cyclic voltammetry, the inhibition being higher in the case of Ni and Ni-containing alloys. CO chemisorbed on Fe and/or Ni atoms present on the alloy surface was identified as the species responsible for corrosion inhibition. The inhibition of corrosion is higher in the cases of Ni and Incoloy 825.

KW - corrosion inhibition

KW - adsorbed CO

KW - Fe

KW - Ni

KW - concentrated HCI

KW - FTIRS

U2 - 10.1016/j.jelechem.2011.05.015

DO - 10.1016/j.jelechem.2011.05.015

M3 - Article

VL - 662

SP - 150

EP - 156

JO - Journal of Electroanalytical Chemistry

JF - Journal of Electroanalytical Chemistry

SN - 1572-6657

IS - 1

ER -

Inhibition by CO of the corrosion of Fe, Ni, and their alloys in concentrated HCl solutions

Abstract

Keywords

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