Review

. 2022 May 6;27(9):2991.

doi: 10.3390/molecules27092991.

A Brief Review on Fruit and Vegetable Extracts as Corrosion Inhibitors in Acidic Environments

Nnabuk Okon Eddy¹, Udo John Ibok², Rajni Garg³, Rishav Garg⁴, Amjad Iqbal⁵, Muhammad Amin⁶, Faisal Mustafa^{7

8}, Mehmet Egilmez^{7

8}, Ahmed M Galal^{9

10}

Affiliations

¹ Department of Pure and Applied Chemistry, University of Nigeria, Nsukka 410001, Nigeria.
² Department of Chemistry, Akwa Ibom State University, Ikot Akpaden 520221, Nigeria.
³ Research & Development, Institute of Sci-Tech Affairs, Mohali 140306, India.
⁴ Department of Civil Engineering, Galgotias College of Engineering and Technology, Greater Noida 201306, India.
⁵ Department of Materials Technologies, Faculty of Materials Engineering, Silesian University of Technology, 44-100 Gliwice, Poland.
⁶ Department of Energy System Engineering, Seoul National University, Seoul 08826, Korea.
⁷ Department of Physics, American University of Sharjah, Sharjah 26666, United Arab Emirates.
⁸ Materials Science and Engineering Program, College of Arts and Sciences, American University of Sharjah, Sharjah 26666, United Arab Emirates.
⁹ Mechanical Engineering Department, College of Engineering, Prince Sattam Bin Abdulaziz University, Wadi ad-Dawasir 11991, Saudi Arabia.
¹⁰ Production Engineering and Mechanical Design Department, Faculty of Engineering, Mansoura University, Mansoura 35516, Egypt.

PMID: 35566341
PMCID: PMC9105195
DOI: 10.3390/molecules27092991

Review

A Brief Review on Fruit and Vegetable Extracts as Corrosion Inhibitors in Acidic Environments

Nnabuk Okon Eddy et al. Molecules. 2022.

. 2022 May 6;27(9):2991.

doi: 10.3390/molecules27092991.

Authors

Nnabuk Okon Eddy¹, Udo John Ibok², Rajni Garg³, Rishav Garg⁴, Amjad Iqbal⁵, Muhammad Amin⁶, Faisal Mustafa^{7

8}, Mehmet Egilmez^{7

8}, Ahmed M Galal^{9

10}

Affiliations

¹ Department of Pure and Applied Chemistry, University of Nigeria, Nsukka 410001, Nigeria.
² Department of Chemistry, Akwa Ibom State University, Ikot Akpaden 520221, Nigeria.
³ Research & Development, Institute of Sci-Tech Affairs, Mohali 140306, India.
⁴ Department of Civil Engineering, Galgotias College of Engineering and Technology, Greater Noida 201306, India.
⁵ Department of Materials Technologies, Faculty of Materials Engineering, Silesian University of Technology, 44-100 Gliwice, Poland.
⁶ Department of Energy System Engineering, Seoul National University, Seoul 08826, Korea.
⁷ Department of Physics, American University of Sharjah, Sharjah 26666, United Arab Emirates.
⁸ Materials Science and Engineering Program, College of Arts and Sciences, American University of Sharjah, Sharjah 26666, United Arab Emirates.
⁹ Mechanical Engineering Department, College of Engineering, Prince Sattam Bin Abdulaziz University, Wadi ad-Dawasir 11991, Saudi Arabia.
¹⁰ Production Engineering and Mechanical Design Department, Faculty of Engineering, Mansoura University, Mansoura 35516, Egypt.

PMID: 35566341
PMCID: PMC9105195
DOI: 10.3390/molecules27092991

Abstract

The corrosion of metals, i.e., the initiation and acceleration of the surface deterioration of metals through an electrochemical reaction with the surrounding intrusive environment, is a global concern because of the economic and environmental impacts. Corrosion inhibitors are considered the most practical choice among the available corrosion protection techniques due to their effectiveness in terms of functionality and cost. The use of traditional and toxic corrosion inhibitors has led to environmental issues, arousing the need for green counterparts that are environmentally friendly, easily accessible, biodegradable, and cost-effective. In this review, the utilization of green corrosion inhibitors purely acquired from renewable sources is explored, with an in-depth focus on the recent advancements in the use of fruit and vegetable extracts as green corrosion inhibitors. In particular, fruits and vegetables are natural sources of various phytochemicals that exhibit key potential in corrosion inhibition. To shed light on the true potential of such extracts in the protection of steel in acidic environments, the experimental techniques involved in corrosion inhibition and the mechanism of corrosion inhibition are discussed in detail. The study highlights the potential of fruit and vegetable extracts as non-toxic, economical, and effective corrosion inhibitors in the pursuit of green chemistry. In addition to discussing and outlining the current status and opportunities for employing fruit and vegetable extracts as corrosion inhibitors, the current review outlines the challenges involved in the utilization of such extracts in corrosion inhibition.

Keywords: adsorption; corrosion; green corrosion inhibitor; kinetics; phytochemicals; steel.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

**Figure 1**
Widely utilized methods of corrosion protection.

**Figure 2**
Characteristics expected from a good corrosion inhibitor.

**Figure 3**
The mechanism for corrosion inhibition.

See this image and copyright information in PMC

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A Brief Review on Fruit and Vegetable Extracts as Corrosion Inhibitors in Acidic Environments

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A Brief Review on Fruit and Vegetable Extracts as Corrosion Inhibitors in Acidic Environments

Authors

Affiliations

Abstract

Conflict of interest statement

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