Evaluation of Purple Onion (Allium cepa L.) Extract as a Natural Corrosion Inhibitor for Carbon Steel in Acidic Media

Gustavo Tomas Galo; Andréia de A. Morandim‑Giannetti; Fernando Cotting; Idalina Vieira Aoki; Isabella Pacifico Aquino

doi:10.1007/s12540-020-00679-9

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자료유형: 학술저널

저자정보: Gustavo Tomas Galo (Centro Universitário FEI) Andréia de A. Morandim‑Giannetti (Centro Universitário FEI) Fernando Cotting (Federal University of Minas Gerais) Idalina Vieira Aoki (Polytechnic School of the University of São Paulo) Isabella Pacifico Aquino (Centro Universitário FEI)

저널정보: 대한금속·재료학회 Metals and Materials International Metals and Materials International Vol.27 No.9

발행연도: 2021.9

수록면: 3,238 - 3,249 (12page)

DOI: 10.1007/s12540-020-00679-9

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The capacity of the Allium cepa L. extract from peel (ACP) and bulb (ACB) as a natural corrosion inhibitor for carbon steelwas evaluated. The corrosion characterization was performed by a gravimetric test, showing an inhibitor efficiency of 60%(ACP) and 67% (ACB). Electrochemical tests indicated higher corrosion resistance for carbon steel in the presence of theextracts, and the SEM images of steel samples confirm the results. These extracts were analyzed by the DPPH (2,2-diphenyl-1-picrylhydrazyl) method, confirming the antioxidant activity. The chemical characterization of the extracts by FTIR measurementsrevealed the presence of phenolic compounds with antioxidant capacity.

#Corrosion #Natural corrosion inhibitor #Antioxidant activity #Phenolic compounds

참고문헌 (5)

참고문헌 신청

J. Bystrická / 2013 / Bioactive components of onion (Allium cepa L.): a review / Acta Aliment. 42(1):11~22

D. I. Stajner / 2003 / An evaluation of the antioxidant abilities of Allium species / Acta Biol. Szegediensis 47(1):103~106

N. Benkeblia / 2005 / Free-radical scavenging capacity and antioxidant properties of some selected onions (Allium cepa L.) and garlic (Allium sativum L.) extracts / Food Sci. Technol. 48(5):753~759

W. Breu / 1996 / Allium cepa L. (onion) Part 1: chemistry and analysis / Phytomedicine 3(3):293~306

A. M. Santos / 2021 / Evaluation of Palm Kernel Cake Powder (Elaeis guineensis Jacq.) as Corrosion Inhibitor for Carbon Steel in Acidic Media / Metals and Materials International 27(6):1519~1530

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