Elucidation of mechanism of corrosion inhibition by polyacrylic acid and synergistic action with iodide ions by in-situ AFM

S. A. Umoren; C. Pan; Y. Li; F. H. Wang

doi:10.1080/01694243.2013.816836

Elucidation of mechanism of corrosion inhibition by polyacrylic acid and synergistic action with iodide ions by in-situ AFM

S. A. Umoren^*
, C. Pan
, Y. Li
, F. H. Wang

^*Corresponding author for this work

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

20 Scopus citations

Abstract

Corrosion inhibition mechanism of aluminium in H2SO4 by polyacrylic acid (PAA) in the absence and presence of iodide ions was investigated using in-situ atomic force microscopy (AFM). Results indicate that PAA inhibited the corrosion of aluminium by adsorption onto the aluminium surface. Inhibition efficiency of PAA was found to enhance on addition of iodide ion which could be ascribed to synergistic effect. In-situ AFM morphology of the surface film suggests that PAA in the presence of iodide ion was adsorbed on aluminium surface after taking a more ordered arrangement, thus providing a more uniform coverage at potentials below and above potential of zero charge.

Original language	English
Pages (from-to)	31-37
Number of pages	7
Journal	Journal of Adhesion Science and Technology
Volume	28
Issue number	1
DOIs	https://doi.org/10.1080/01694243.2013.816836
State	Published - 2 Jan 2014
Externally published	Yes

Bibliographical note

Funding Information:
SA Umoren acknowledges the Chinese Academy of Sciences (CAS) and Academy of Sciences for the Developing World (TWAS) for the CAS−TWAS Postdoctoral Fellowship.

Keywords

AFM
acid corrosion
aluminium
corrosion inhibition
polyacrylic acid

ASJC Scopus subject areas

General Chemistry
Mechanics of Materials
Surfaces and Interfaces
Surfaces, Coatings and Films
Materials Chemistry

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10.1080/01694243.2013.816836

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title = "Elucidation of mechanism of corrosion inhibition by polyacrylic acid and synergistic action with iodide ions by in-situ AFM",

abstract = "Corrosion inhibition mechanism of aluminium in H2SO4 by polyacrylic acid (PAA) in the absence and presence of iodide ions was investigated using in-situ atomic force microscopy (AFM). Results indicate that PAA inhibited the corrosion of aluminium by adsorption onto the aluminium surface. Inhibition efficiency of PAA was found to enhance on addition of iodide ion which could be ascribed to synergistic effect. In-situ AFM morphology of the surface film suggests that PAA in the presence of iodide ion was adsorbed on aluminium surface after taking a more ordered arrangement, thus providing a more uniform coverage at potentials below and above potential of zero charge.",

keywords = "AFM, acid corrosion, aluminium, corrosion inhibition, polyacrylic acid",

author = "Umoren, \{S. A.\} and C. Pan and Y. Li and Wang, \{F. H.\}",

note = "Funding Information: SA Umoren acknowledges the Chinese Academy of Sciences (CAS) and Academy of Sciences for the Developing World (TWAS) for the CAS−TWAS Postdoctoral Fellowship.",

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doi = "10.1080/01694243.2013.816836",

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T1 - Elucidation of mechanism of corrosion inhibition by polyacrylic acid and synergistic action with iodide ions by in-situ AFM

AU - Umoren, S. A.

AU - Pan, C.

AU - Li, Y.

AU - Wang, F. H.

N1 - Funding Information: SA Umoren acknowledges the Chinese Academy of Sciences (CAS) and Academy of Sciences for the Developing World (TWAS) for the CAS−TWAS Postdoctoral Fellowship.

PY - 2014/1/2

Y1 - 2014/1/2

N2 - Corrosion inhibition mechanism of aluminium in H2SO4 by polyacrylic acid (PAA) in the absence and presence of iodide ions was investigated using in-situ atomic force microscopy (AFM). Results indicate that PAA inhibited the corrosion of aluminium by adsorption onto the aluminium surface. Inhibition efficiency of PAA was found to enhance on addition of iodide ion which could be ascribed to synergistic effect. In-situ AFM morphology of the surface film suggests that PAA in the presence of iodide ion was adsorbed on aluminium surface after taking a more ordered arrangement, thus providing a more uniform coverage at potentials below and above potential of zero charge.

AB - Corrosion inhibition mechanism of aluminium in H2SO4 by polyacrylic acid (PAA) in the absence and presence of iodide ions was investigated using in-situ atomic force microscopy (AFM). Results indicate that PAA inhibited the corrosion of aluminium by adsorption onto the aluminium surface. Inhibition efficiency of PAA was found to enhance on addition of iodide ion which could be ascribed to synergistic effect. In-situ AFM morphology of the surface film suggests that PAA in the presence of iodide ion was adsorbed on aluminium surface after taking a more ordered arrangement, thus providing a more uniform coverage at potentials below and above potential of zero charge.

KW - AFM

KW - acid corrosion

KW - aluminium

KW - corrosion inhibition

KW - polyacrylic acid

UR - https://www.scopus.com/pages/publications/84888383558

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DO - 10.1080/01694243.2013.816836

M3 - Article

AN - SCOPUS:84888383558

SN - 0169-4243

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JO - Journal of Adhesion Science and Technology

JF - Journal of Adhesion Science and Technology

IS - 1

ER -

Elucidation of mechanism of corrosion inhibition by polyacrylic acid and synergistic action with iodide ions by in-situ AFM

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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