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

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

Citation 

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.

Abstract
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.

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