Corrosion Inhibition Of Mild Steel In 1m HCL By Catechin Monomers From Commercial Green Tea Extracts
Abstract
The inhibitory effect of two Indonesian green tea extracts (containing various catechins) were investigated on the corrosion of mild steel (MS) in 1M HCl medium. The anticorrosion effect was evaluated by conventional weight loss method, potentiodynamic polarisation, electrochemical impedance spectroscopy (EIS) studies and scanning electron microscopy (SEM) technique. The results evidenced that both the tea extracts act as a good corrosion inhibitor and the inhibition effi ciencies (% IE) were in good agreement for all the studies. Adsorption of green tea extract constituent was found to follow Langmuir adsorption isotherm and the calculated Gibb’s free energy values indicated the physisorption of inhibitor over the mild steel surface. SEM – EDX studies show the adsorption of catechin monomers which forms a protective layer over the mils steel surface. High performance liquid chromatography (HPLC) analysis was carried out to quantify the catechin fractions in the tea extract and it was found that eight catechin monomers were present in both tea extracts. From all of monomers, it was found that four monomers were identifi ed as components responsible for controlling the dissolution of mild steel in 1 M HCl medium.
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Anthony, N., Malarvizhi, E., Maheshwari,
P., Rajendran, S., & Palaniswamy, N. (2004).
Corrosion inhibition by caffeine: Mn2+ system.
Indian journal of chemical technology, 11(3),
-350.
Ashassi-Sorkhabi, H., Shaabani, B., &
Seifzadeh, D. (2005). Effect of some pyrimidinic
Shciff bases on the corrosion of mild steel in
hydrochloric acid solution. Electrochimica acta,
(16-17), 3446-3452.
Benabdellah, M., Touzani, R., Aouniti, A.,
Dafali, A., El Kadiri, S., Hammouti, B., &
Benkaddour, M. (2007). Inhibitive action of
some bipyrazolic compounds on the corrosion of
steel in 1 M HCl:: Part I: Electrochemical study.
Materials Chemistry and Physics, 105(2-3), 373-
Bentiss, F., Lebrini, M., Lagrenée, M.,
Traisnel, M., Elfarouk, A., & Vezin, H. (2007).
The infl uence of some new 2, 5-disubstituted 1,
, 4-thiadiazoles on the corrosion behaviour of
mild steel in 1 M HCl solution: AC impedance
study and theoretical approach. Electrochimica
acta, 52(24), 6865-6872.
Bentiss, F., Traisnel, M., Chaibi, N., Mernari,
B., Vezin, H., & Lagrenée, M. (2002). 2, 5-Bis
(n-methoxyphenyl)-1, 3, 4-oxadiazoles used as
corrosion inhibitors in acidic media: correlation
between inhibition efficiency and chemical
structure. Corrosion Science, 44(10), 2271-
Blustein, G., Romagnoli, R., Jaén, J., Di Sarli,
A., & del Amo, B. (2006). Zinc basic benzoate
as eco-friendly steel corrosion inhibitor pigment
for anticorrosive epoxy-coatings. Colloids and
Surfaces A: Physicochemical and Engineering
Aspects, 290(1-3), 7-18.
Bothi Raja, P., & Sethuraman, M. (2009a).
Strychnos nux vomica an eco friendly corrosion
inhibitor for mild steel in 1 M sulfuric acid
medium. Materials and Corrosion, 60(1), 22-
Bothi Raja, P., & Sethuraman, M. (2009b).
Studies on the Inhibition of Mild Steel Corrosion
by Rauvolfi a serpentina in Acid Media. Journal of
Materials Engineering and Performance, 1-6.
Bothi Raja, P., & Sethuraman, M. G. (2008).
Inhibitive effect of black pepper extract on the
sulphuric acid corrosion of mild steel. Materials
Letters, 62(17-18), 2977-2979.
Bothi, R. P., Abdul, R. A., Hasnah, O., &
Khalijah, A. (2010). Inhibitory Effect of Kopsia
Singapurensis Extract on the Corrosion Behavior
of Mild Steel in Acid Media. Acta Phys. Chim.
Sin, 26(8), 2171-2176.
Duke, S. O., Romagni, J. G., & Dayan, F.
E. (2000). Natural products as sources for
new mechanisms of herbicidal action. Crop
Protection, 19(8-10), 583-589.
El-Etre, A. (2003). Inhibition of aluminum
corrosion using Opuntia extract. Corrosion
Science, 45(11), 2485-2495.
El-Etre, A., Abdallah, M., & El-Tantawy, Z.
(2005). Corrosion inhibition of some metals using
lawsonia extract. Corrosion Science, 47(2), 385-
Fallavena, T., Antonow, M., & Gonçalves, R. S.
(2006). Caffeine as non-toxic corrosion inhibitor
for copper in aqueous solutions of potassium nitrate.
Applied surface science, 253(2), 566-571.
Fan, H. B., Fu, C. Y., Wang, H. L., Guo, X. P.,
& Zheng, J. S. (2002). Inhibition of corrosion of
mild steel by sodium n, n-diethyl dithiocarbamate
in hydrochloric acid solution. British Corrosion
Journal, 37(2), 122-125.
Fernandez, P., Martin, M., Gonzalez, A.,
& Pablos, F. (2000). HPLC determination of
catechins and caffeine in tea. Differentiation of
green, black and instant teas. Analyst, 125(3),
-425.
Hamilton-Miller, J. (1995). Antimicrobial
properties of tea (Camellia sinensis L.).
Antimicrobial agents and chemotherapy, 39(11),
Hara, Y. (2006). 3 Prophylactic Functions of Tea
Catechins. Protective effects of tea on human
health, 16.
Hosseini, M., Ehteshamzadeh, M., & Shahrabi,
T. (2007). Protection of mild steel corrosion
with Schiff bases in 0.5 M H2SO4 solution.
Electrochimica acta, 52(11), 3680-3685.
Hosseini, M., Mertens, S. F. L., & Arshadi,
M. R. (2003). Synergism and
antagonism in mild steel corrosion inhibition
by sodium dodecylbenzenesulphonate and
hexamethylenetetramine. Corrosion Science,
(7), 1473-1489.
Hussin, M. H., & Kassim, M. J. (2010).
Electrochemical Studies of Mild Steel Corrosion
Inhibition in Aqueous Solution by Uncaria
gambir Extract. Journal of Physical Science,
(1), 1-13.
Kakuda, T. (2002). Neuroprotective effects of
the green tea components theanine and catechins.
Biological & pharmaceutical bulletin, 25(12),
-1518.
Kalendová, A., Vesel , D., & Stejskal, J.
(2008). Organic coatings containing polyaniline
and inorganic pigments as corrosion inhibitors.
Progress in Organic Coatings, 62(1), 105-116.
Kardas, G., & Solmaz, R. (2006). Electrochemical
investigation of barbiturates as green corrosion
inhibitors for mild steel protection. Corros. Rev,
, 151–171.
Kiehl, A., & Brendel, H. (2002). Corrosion
inhibited metal pigments.
Kyung, H., & Yinzhe, J. (2006). Recovery of
catechin compounds from Korean tea by solvent
extraction. Bioresour. Technol, 97(5), 790–793.
Maoela, M. S., Arotiba, O. A., Baker, P. G.
L., Mabusela, W. T., Jahed, N., Songa, E.
A., & Iwuoha, E. I. (2009). Electroanalytical
determination of catechin flavonoid in ethyl
acetate extracts of Medicinal Plants. Int. J.
Electrochem. Sci, 4, 1497-1510.
Morad, M., & El-Dean, A. (2006). 2, 2’-
Dithiobis (3-cyano-4, 6-dimethylpyridine): A
new class of acid corrosion inhibitors for mild
steel. Corrosion Science, 48(11), 3398-3412.
Nishitani, E., & Sagesaka, Y. M. (2004).
Simultaneous determination of catechins, caffeine
and other phenolic compounds in tea using new
HPLC method. Journal of Food Composition and
Analysis, 17(5), 675-685.
Nmai, C. K. (2004). Multi-functional organic
corrosion inhibitor. Cement and Concrete
Composites, 26(3), 199-207.
Rahim, A. A., & Kassim, J. (2008). Recent
Development of Vegetal Tannins in Corrosion
Protection of Iron and Steel. Recent Patents on
Materials Science, 1(3), 223-231.
Rahim, A. A., Rocca, E., Steinmetz, J., & Jain
Kassim, M. (2008). Inhibitive action of mangrove
tannins and phosphoric acid on pre-rusted steel
via electrochemical methods. Corrosion Science,
(6), 1546-1550.
Rahim, A. A., Rocca, E., Steinmetz, J., Kassim,
M., Adnan, R., & Sani Ibrahim, M. (2007).
Mangrove tannins and their fl avanoid monomers
as alternative steel corrosion inhibitors in acidic
medium. Corrosion Science, 49(2), 402-417.
Raja, P. B., & Sethuraman, M. G. (2008).
Natural products as corrosion inhibitor for metals
in corrosive media--A review. Materials Letters,
(1), 113-116.
Row, K. H., & Jin, Y. (2006). Recovery of
catechin compounds from Korean tea by solvent
extraction. Bioresource technology, 97(5), 790-
Sano, M., Suzuki, M., Miyase, T., Yoshino,
K., & Maeda-Yamamoto, M. (1999). Novel
antiallergic catechin derivatives isolated from oolong tea. Journal of agricultural and food
chemistry, 47(5), 1906-1910.
Sethuraman, M. G., Vadivel, P., & Kumar, K.
P. V. (2001). Tea wastes as corrosion inhibitor for
mild steel in acid medium. J. Electrochem. Soc.
India, 50, 143-146.
Setiawan, V. W., Zhang, Z. F., Yu, G. P., Lu, Q.
Y., Li, Y. L., Lu, M. L., Wang, M. R., Guo, C.
H., Yu, S. Z., & Kurtz, R. C. (2001). Protective
effect of green tea on the risks of chronic gastritis
and stomach cancer. International journal of
cancer, 92(4), 600-604.
Shahrabi, T., Tavakholi, H., & Hosseini,
M. (2007). Corrosion inhibition of copper in
sulphuric acid by some nitrogen heterocyclic
compounds. Anti-Corrosion Methods and
Materials, 54(5), 308-313.
Taniguchi, S., Kuroda, K., Doi, K. I., Inada, K.,
Yoshikado, N., Yoneda, Y., Tanabe, M., Shibata,
T., Yoshida, T., & Hatono, T. (2007). Evaluation
of gambir quality based on quantitative analysis
of polyphenolic constituents. Yakugaku zasshi,
(8), 1291-1300.
Wang, H., Helliwell, K., & You, X. (2000).
Isocratic elution system for the determination of
catechins, caffeine and gallic acid in green tea
using HPLC. Food chemistry, 68(1), 115-121.
Zhong, L., Goldberg, M. S., Gao, Y. T., Hanley,
J. A., Parent, M. É., & Jin, F. (2001). A
population-based case-control study of lung
cancer and green tea consumption among women
living in Shanghai, China. Epidemiology, 12(6),
-700.
DOI: https://doi.org/10.29017/SCOG.35.1.773
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