Inhibition of mild steel corrosion in acidic medium using coconut coir dust extracted from water and methanol as solvents

S. A. Umoren; I. B. Obot; A. U. Israel; P. O. Asuquo; M. M. Solomon; U. M. Eduok; A. P. Udoh

doi:10.1016/j.jiec.2013.12.056

Inhibition of mild steel corrosion in acidic medium using coconut coir dust extracted from water and methanol as solvents

S. A. Umoren^*, I. B. Obot, A. U. Israel, P. O. Asuquo, M. M. Solomon, U. M. Eduok, A. P. Udoh

^*Corresponding author for this work

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

96 Scopus citations

Abstract

Corrosion inhibition of mild steel in H₂SO₄ by water and methanol extracts of coconut coir dust was studied using chemical and electrochemical techniques. It was found that the extracts inhibited the acid induced corrosion of mild steel. The inhibition efficiency increased with increase in extracts concentration but decreased with increase in temperature. Methanol extract was found to be a better inhibitor. The adsorption of the extracts' components onto the mild steel surface follow Temkin and Freundlich adsorption isotherms for methanol and water extracts respectively. Polarization studies show that the extracts act as mixed typed inhibitor but under cathodic control.

Original language	English
Pages (from-to)	3612-3622
Number of pages	11
Journal	Journal of Industrial and Engineering Chemistry
Volume	20
Issue number	5
DOIs	https://doi.org/10.1016/j.jiec.2013.12.056
State	Published - 25 Sep 2014
Externally published	Yes

Bibliographical note

Funding Information:
This project is funded by TWAS , the Academy of Sciences for the Developing World , under the TWAS Grants for Research Units in Developing Countries Program (10-107RG/CHE/AF/AC-G). We also acknowledged financial support from the Vice Chancellor University of Uyo, Uyo, Nigeria .

Keywords

Acid corrosion
Coconut coir dust
Corrosion inhibition
Mild steel

ASJC Scopus subject areas

General Chemical Engineering

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10.1016/j.jiec.2013.12.056

Cite this

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title = "Inhibition of mild steel corrosion in acidic medium using coconut coir dust extracted from water and methanol as solvents",

abstract = "Corrosion inhibition of mild steel in H2SO4 by water and methanol extracts of coconut coir dust was studied using chemical and electrochemical techniques. It was found that the extracts inhibited the acid induced corrosion of mild steel. The inhibition efficiency increased with increase in extracts concentration but decreased with increase in temperature. Methanol extract was found to be a better inhibitor. The adsorption of the extracts' components onto the mild steel surface follow Temkin and Freundlich adsorption isotherms for methanol and water extracts respectively. Polarization studies show that the extracts act as mixed typed inhibitor but under cathodic control.",

keywords = "Acid corrosion, Coconut coir dust, Corrosion inhibition, Mild steel",

author = "Umoren, \{S. A.\} and Obot, \{I. B.\} and Israel, \{A. U.\} and Asuquo, \{P. O.\} and Solomon, \{M. M.\} and Eduok, \{U. M.\} and Udoh, \{A. P.\}",

note = "Funding Information: This project is funded by TWAS , the Academy of Sciences for the Developing World , under the TWAS Grants for Research Units in Developing Countries Program (10-107RG/CHE/AF/AC-G). We also acknowledged financial support from the Vice Chancellor University of Uyo, Uyo, Nigeria . ",

year = "2014",

month = sep,

day = "25",

doi = "10.1016/j.jiec.2013.12.056",

language = "English",

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pages = "3612--3622",

journal = "Journal of Industrial and Engineering Chemistry",

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AU - Umoren, S. A.

AU - Obot, I. B.

AU - Israel, A. U.

AU - Asuquo, P. O.

AU - Solomon, M. M.

AU - Eduok, U. M.

AU - Udoh, A. P.

N1 - Funding Information: This project is funded by TWAS , the Academy of Sciences for the Developing World , under the TWAS Grants for Research Units in Developing Countries Program (10-107RG/CHE/AF/AC-G). We also acknowledged financial support from the Vice Chancellor University of Uyo, Uyo, Nigeria .

PY - 2014/9/25

Y1 - 2014/9/25

N2 - Corrosion inhibition of mild steel in H2SO4 by water and methanol extracts of coconut coir dust was studied using chemical and electrochemical techniques. It was found that the extracts inhibited the acid induced corrosion of mild steel. The inhibition efficiency increased with increase in extracts concentration but decreased with increase in temperature. Methanol extract was found to be a better inhibitor. The adsorption of the extracts' components onto the mild steel surface follow Temkin and Freundlich adsorption isotherms for methanol and water extracts respectively. Polarization studies show that the extracts act as mixed typed inhibitor but under cathodic control.

AB - Corrosion inhibition of mild steel in H2SO4 by water and methanol extracts of coconut coir dust was studied using chemical and electrochemical techniques. It was found that the extracts inhibited the acid induced corrosion of mild steel. The inhibition efficiency increased with increase in extracts concentration but decreased with increase in temperature. Methanol extract was found to be a better inhibitor. The adsorption of the extracts' components onto the mild steel surface follow Temkin and Freundlich adsorption isotherms for methanol and water extracts respectively. Polarization studies show that the extracts act as mixed typed inhibitor but under cathodic control.

KW - Acid corrosion

KW - Coconut coir dust

KW - Corrosion inhibition

KW - Mild steel

UR - https://www.scopus.com/pages/publications/84903528321

U2 - 10.1016/j.jiec.2013.12.056

DO - 10.1016/j.jiec.2013.12.056

M3 - Article

AN - SCOPUS:84903528321

SN - 1226-086X

VL - 20

SP - 3612

EP - 3622

JO - Journal of Industrial and Engineering Chemistry

JF - Journal of Industrial and Engineering Chemistry

IS - 5

ER -

Inhibition of mild steel corrosion in acidic medium using coconut coir dust extracted from water and methanol as solvents

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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