Electrochemical, Sem, Gc-Ms And Ftir Study Of Inhibitory Property of Cold Extract of Theobroma Cacao Pods For Mild Steel Corrosion In Hydrochloric Acid

  IJETT-book-cover  International Journal of Engineering Trends and Technology (IJETT)          
© 2020 by IJETT Journal
Volume-68 Issue-2
Year of Publication : 2020
Authors : IZIONWORU, V.O, Oguzie, Emeka Emmanuel, Amadi Stephen Aguguom
DOI :  10.14445/22315381/IJETT-V68I2P214


MLA Style: IZIONWORU, V.O, Oguzie, Emeka Emmanuel, Amadi Stephen Aguguom  "Electrochemical, Sem, Gc-Ms And Ftir Study Of Inhibitory Property of Cold Extract of Theobroma Cacao Pods For Mild Steel Corrosion In Hydrochloric Acid" International Journal of Engineering Trends and Technology 68.2 (2020):82-87.

APA Style:IZIONWORU, V.O, Oguzie, Emeka Emmanuel, Amadi Stephen Aguguom Electrochemical, Sem, Gc-Ms And Ftir Study Of Inhibitory Property of Cold Extract of Theobroma Cacao Pods For Mild Steel Corrosion In Hydrochloric Acid  International Journal of Engineering Trends and Technology, 68(2),82-87.

The inhibition capability of cold water extract of Theobroma cacao pods - Cocoa pod (TCP-CP) on mild steel corrosion in 1 M HCl solution was studied using electrochemical polarization, Scanning Electron Microscoy (SEM), Fourier Transform-Infrared Spectrum (FT-IR) analysis and Gas Chromatrography-Mass Spectrometry (GC-MS) analysis. The inhibition efficiency extrapolated from potentiodynamic polarization curves showed that cold water extract of TCP-CP behaved mostly as mixed-type inhibitor in hydrochloric acid. Scanning electron microscopy was used to characterize the surface morphology of uninhibited and inhibited mild steel specimens and the results show a remarkable inhibition of the corrosion process in the presence of the inhibitor. Analysis of the peaks of Fourier Transform-Infrared Spectrum (FT-IR) of the inhibitors indicated presence of functional groups containing Phosphorus, Oxygen, Nitrogen, -OH and -COOH while the peaks of the Gas Chromatrography - Mass Spectrometry (GC-MS) analysis is in agreement with the results of the FT-IR and indicate the presence of corrosion inhibiting compound such as Terpenes, Tannin, Alkaloid, Flavonoid and Phytate in different appreciable concentrations in mg/100g.


[1] National Association of Corrosion Engineers, NACE International, International Measures of Prevention, Application and Economics of Corrosion Technology (IMPACT) http://impact.nace.org/documents/Nace-International-Report.pdf, 2016.
[2] F. Santiago, R. G. Federico, B. Violeta, C. G. Juan, and F. Sebastian. A Critical Review of the Application of Electrochemical Techniques for Studying Corrosion of Mg and Mg Alloys: Opportunities and Challenges. ttp://dx.doi.org/10.5772/intechopen.79497
[3] R. Loto. Potentiodynamic polarization studies of the pitting corrosion resistance and passivation behavior of P4 low carbon mold steel in chloride and acid chloride solution. Materials Research Express, No. 11, 2018. Volume 5,
[4] M. Yadav, L. Gope and T.K. Sarkar. Synthesized amino acid compoundas eco-friendly corrosion inhibitor for mild steel in hydrochloric acid solution: electrochemical and quantum studies. Research on Chemical Intermediates 42 (3), Pp. 2641-2660, 2015.
[5] I.O. Arukalam, N.T. Ijoma, S.C. Nwanonenyi, H.C. Obasi, B.C. Aharanwa and P.I. Anyanwu. “Studies on acid corrosion of aluminium by a naturally occurring polymer (xanthan gum),” International Journal of Scientific & Engineering Research, Volume 5, Issue 3, pp. 663-673, 2014.
[6] X. Wang, H. Yang and F. Wang. An investigation of benzimidazol derivative as corrosion inhibitor for mild steel in different concentration HCl solutions. Corrosion Science, Elsevier 53, Pp. 113-121, 2011.
[7] Karthikaiselvi, R. and Subhashinis, K. Study of adsorption properties and inhibition of mild steel corrosion in hydrochloric acid media by water soluble composite poly (vinyl albholar o-methoryaniline). Journal of the Association of Arab Universities for Basic and Applied Sciences 16, 74-82, 2014.
[8] B. Ramezanzadeh, and S.Y. Arman, Electrochemical noise investigation of Aloe plant extract as green inhibitor on the corrosion of stainless steel in 1 M H2SO4 Journal of Industrial and Engineering Chemistry. Volume 21, Pp. 318-327, 2015.
[9] P. Mayakrishnan, S. HyunKim, K. Kalaiselvi, V. Hemapriya, Ill-Min. Highly efficient Ligularia fischeri green extract for the protection against corrosion of mild steel in acidic medium: Electrochemical and spectroscopic investigations. Journal of the Taiwan Institute of Chemical Engineers Volume 59, Pp. 553-562, 2016.
[10] https://en.wikipedia.org/wiki/Indole
[11] M. R. Singh, A green Approach:A corrosion inhibition of mild steel by adhatoda vasica plant extract in 0.5 M H2SO4 . Journal of Material and Environmental Science 4 (1) 119-126, 2012.
[12] V. O. Izionworu, and C.P. Ukpaka, Inhibition of Mild Steel Corrosion In Acidic Medium Using Theobroma Cacao Pod. International Journal of Scientific & Engineering Research, 2020.
[13] E. E. Oguzie, Corrosion inhibition of aluminum in acidic and alkaline media by Sansevieria trifasciata extracts.Corrosion Science, 49, 1527-1539, 2007.
[14] E. E. Oguzie, C. K. Enenebeaku, C. O. Akalezi, S. C., Okoro, A. A. Ayuk and E. N. Ejike, Adsorption and Corrosion inhibiting effect of Dacryodis edulis extract on low carbon steel corrosion in acidic media. Journal of Colloid Interface Science, 349, 283, 2010.
[15] E. E. Oguzie, Y. Li, and F. H. Wang, Corrosion inhibition and adsorption behaviour of methionine on mild steel in sulphuric acid and synergistic effect of iodide ion. Journal of Colloid Interface Science. 310, 90, 2007a.
[16] X. H. Li, G. N. Mu, Tween-40 as corrosion inhibitor for cold rolled steel in sulphuric acid: weight loss study, electrochemical characterization, and AFM, Applied Surface Science. 252, 1254–1265, 2005.
[17] S. P. Ramesh, K. P. Vinod Kumar and M. G. Sethuraman, Extract of andrographis paniculata as corrosion inhibitor of mild steel in acid medium, Bulletin of Electrochemistry, 17, 141–144, 2001.
[18] B. S. Shylesha, T. V. Venkatesha and B. M. Praveen, Corrosion inhibition studies of mild steel by new inhibitor in different corrosive medium. Research Journal of Chemical Sciences, 1(7), 46-50, 2011.
[19] M.S. Al-Otaibi, A.M. Al-Mayouf, A. Khan, A.A. Mousa, S.A. Al-Mazroa, and H.Z. Alkhathlan, Corrosion Inhibitory Action of Some Plant Extracts on the Corrosion of Mild Steel in Acidic Media. Arabian Journal of Chemistry, 7, 340-346. http://dx.doi.org/10.1016/j.arabjc.2012.01.015, 2014.
[20] H. Ashassi-Sorkhabi, and N. Ghalebsaz-Jeddi, Inhibitioneffect of polyethylene on the corrosion of carbon steel in sulphuric acid. Material Chemistry and Physics. V. 92, Issues 2–3, p 480-486. https://doi.org/10.1016/j.matchemphys.2005.01.059.
[21] J. Coates, Interpretation of Infrared Spectra: A Practical Approach. In: Meyers, R.A., Ed., Encyclopedia of Analytical Chemistry, John Wiley & Sons Ltd., Chichester, 10881-10882, 2000.
[22] K. Khairou, and A, Elsayed, Inhibition effect of some polymers on the corrosion of Cd in a hydrochloric acid solutions. Journal of Applied Polymer Science 88 (4). Pp. 866 – 871, 2003.
[23] K. F. Khaled, A. El-mghraby, O. B. Ibrahim, O. A. Elhabib and M. A. M. Ibrahim, Inhibitive effect of thiosemicarbazone derivative on corrosion of mild steel in hydrochloric acid solution. Journal of Material and Environmental Science. 1 (3) p139-150, 2010.
[24] V. O. Izionworu, and I.O. Alabi, Characterisation of Sawdust from Entandrophragma Cylindricum (Sapele), Diospyruscrassiflora (Ebony), Triplochitonscleroxylon (Obeche) and Chlorophora Excelsa (Iroko) Woods. International Journal of Scientific & Engineering Research Volume 9, Issue 2, Pp. 1569 – 1576, 2018.
[25] N. Ayssar, I.A. Ideisan and A. Ibrahim, Inhibition of Mild Steel Corrosion by 3-Benzoylmethyl Benzimidazolium Hexafluoroantimonate in Acidic Solution.International Journal of Corrosion, V.2012, ID 246013, 2012.
[26] Flavonoid, Wikipedia, the free encyclopedia Retrieved, https://en.wikipedia.org/wiki/Flavonoid April 2nd, 2019
[27] https://en.wikipedia.org/wiki/Tannin
[28] https://en.wikipedia.org/wiki/Alkaloid
[29] https://en.wikipedia.org/wiki/Phytic_acid
[30] https://en.wikipedia.org/wiki/Phenol
[31] V. O. Izionworu, Modeling of Experimental Drying Kinetics of Cocoa Pod. Department of Chemical/Petrochemical Engineering, Rivers State University, Nkpolu-Oroworukwo, Port Harcourt, Nigeria, 2020.
[32] M. Yadav, R.R. Sinha, T.K. Sarkar, I. Bahadur, and E. E. Ebenso, Application of new isonicotinamides as a corrosion inhibitor on mild steel in acidic medium: Electrochenical, SEM, EDX, AFM and DFT investigations. Journal of Molecular Liquids 212. Pp 686-698, 2015.
[33] S. K. Saha, A. Dutta, P. Ghosh, D. Sukul ,and P. Banerjee, Adsorption and corrosion inhibition effect of Schiff base molecules on the mild steel surface in 1 M HCl medium: A combined experimental and theoretical approach. Phys. Chem. Chem. Phys. Pp 2-11. DOI10.1039/C4CP05614K, 2015.

Electrochemical Polarization, Fourier Transform-Infrared Specrum (FT-IR), Theobroma cacao pods, Mild Steel, Scanning Electron Microscopy (SEM), Gas Chromatrography-Mass Spectrometry (GC-MS)