Corrosion Inhibition of Aluminum in 0.1M HCL by Nephelium lappaceum (Rambutan) Peel Extract

2014 ◽  
Vol 661 ◽  
pp. 14-20 ◽  
Author(s):  
Mohd Norzila ◽  
Mat Irahim Nur Akidah Honey ◽  
Jaafar Nursyafinaz
Keyword(s):  
Corrosion Inhibitor ◽  
Corrosion Inhibitors ◽  
Physical Adsorption ◽  
Human Life ◽  
Aluminum Surface ◽  
Inhibition Mechanism ◽  
Nephelium Lappaceum ◽  
Sem Study ◽  
Natural Corrosion ◽  
Peel Extract

Corrosion control of metals is about technical, economic, environmental, and aesthetic importance. Synthetic corrosion inhibitors are toxic to environment and human life. Thus, the searches for natural corrosion inhibitors are essential as they are biodegradable and non toxic. The purpose of this study is to investigate the ability ofNephelium lappaceumpeel extract as a corrosion inhibitor of aluminum in 0.1M HCl solutions. Obtained data from gravimetric and thermometric analysis has shown the value of inhibition efficiency (% IE) is proportional to added inhibitor concentration and inversely proportional to the temperature. Occurred inhibition mechanism was in the form of inhibitor adsorption process on aluminum surface that allegedly preceded by physical adsorption. The SEM study also confirmed there were adsorptions of extracted inhibitor molecules onto aluminum surface. Therefore, from the observational results obtained, it can be concluded thatNephelium lappaceumpeel extract was an attractive candidate for the natural corrosion inhibitor.

Review on Research and Progress of Corrosion Inhibitors

2010 ◽  
Vol 44-47 ◽  
pp. 4063-4066 ◽  
Author(s):  
Xiao Dong Zhao ◽  
Jie Yang ◽  
Xi Qiu Fan
Keyword(s):  
Corrosion Inhibitor ◽  
Corrosion Inhibitors ◽  
Economic Value ◽  
Development Trend ◽  
Evaluation Methods ◽  
Inhibition Mechanism ◽  
Theoretical Significance ◽  
Low Toxicity

In this paper, research and progress of corrosion inhibitors are reviewed from the aspects of history, classification, inhibition mechanism, evaluation methods and development trend. It is of great theoretical significance and high social and economic value for development of new efficient and low toxicity corrosion inhibitor and deep research on the inhibition mechanism.

Electrochemical Corrosion Inhibition System for Photoresist Stripper for New Copper FPD Manufacturing

2007 ◽  
Vol 990 ◽  
Author(s):  
Seiji Inaoka ◽  
Sang In Kim
Keyword(s):  
Corrosion Inhibitor ◽  
Corrosion Inhibition ◽  
Corrosion Inhibitors ◽  
Electrochemical Corrosion ◽  
Inhibition Mechanism ◽  
Copper Corrosion ◽  
Photoresist Stripper ◽  
Copper Corrosion Inhibition

ABSTRACTDevelopment of photoresist stripper with copper compatibility is challenging as conventional corrosion inhibitors do not protect the metal as expected. Copper corrosion inhibition mechanism of newly developed photoresist stripper is proposed that significantly reduces copper corrosion with small amount of corrosion inhibitor.

scholarly journals Study of Corrosion Inhibition Mechanism of Sputter-Deposited W-42Cr-5Ni and Cr-10Zr-10w Alloys by Sodium Nitrite as Green Inhibitor in 0.5 M NaCl and 1 M NaOH Solutions

2014 ◽  
Vol 2 (4) ◽  
pp. 537-543
Author(s):  
Dhruba Babu Subedi ◽  
Durga Bhakta Pokharel ◽  
Jagadeesh Bhattarai
Keyword(s):  
Corrosion Resistance ◽  
Corrosion Inhibitor ◽  
Corrosion Inhibition ◽  
Sodium Nitrite ◽  
Physical Adsorption ◽  
Inhibition Mechanism ◽  
Green Inhibitor ◽  
Green Corrosion Inhibitor ◽  
Corrosion Resistance Property ◽  
Sputter Deposited

The effect of different concentrations of sodium nitrite as a green corrosion inhibitor on the corrosion inhibition mechanism of the sputterdeposited ternary W-42Cr-5Ni and Cr-10Zr-10W alloys was studied in 0.5 M NaCl and 1 M NaOH solutions open to air at 25ºC using corrosion tests. The use of the sodium nitrite enhanced the corrosion resistance properties of both the alloys in 0.5 M NaCl and 1 M NaOH solutions. It is found that the sodium nitrite is strongly adsorbed on the surface of the sputter-deposited these two alloys by physical adsorption, not by the chemisorption. As a result the corrosion resistance property of the alloys was found to be significantly increased with increasing the concentration of the green corrosion inhibitor of sodium nitrite. The corrosion rates of the sputter-deposited W-42Cr-5Ni and Cr-10Zr-10W alloys were decreased with increasing the concentrations of sodium nitrite of 2400 ppm. DOI: http://dx.doi.org/10.3126/ijasbt.v2i4.11531Int J Appl Sci Biotechnol, Vol. 2(4): 537-543 

scholarly journals The Effect of Concentration of Lawsonia inermis as a Corrosion Inhibitor for Aluminum Alloy in Seawater

2017 ◽  
Vol 2017 ◽  
pp. 1-12 ◽  
Author(s):  
F. Zulkifli ◽  
Nora’aini Ali ◽  
M. Sukeri M. Yusof ◽  
Wan M. Khairul ◽  
Rafizah Rahamathullah ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Corrosion Inhibitor ◽  
Electrochemical Impedance ◽  
Physical Adsorption ◽  
Aluminum Surface ◽  
Adsorption Model ◽  
Lawsonia Inermis ◽  
Free Energy Of Adsorption ◽  
Langmuir Adsorption ◽  
Aluminum Alloy 5083

Lawsonia inermis also known as henna was studied as a corrosion inhibitor for aluminum alloy in seawater. The inhibitor has been characterized by optical study via Fourier transform infrared spectroscopy (FTIR). The FTIR proves the existence of hydroxyl and carbonyl functional groups in Lawsonia inermis. Aluminum alloy 5083 immersed in seawater in the absence and presence of Lawsonia inermis was tested using electrochemistry method, namely, electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization (PP). EIS and PP measurements suggest that the addition of Lawsonia inermis has caused the adsorption of inhibitor on the aluminum surface. The adsorption behavior of the inhibitor follow Langmuir adsorption model where the value of free energy of adsorption, -ΔG, is less than 40 kJ/mol indicates that it is a physical adsorption. Finally, it was inferred that Lawsonia inermis has a real potential to act as a corrosion inhibitor for aluminum alloy in seawater.

Application of Myrmecodia Pendans Extract as a Green Corrosion Inhibitor for Mild Steel in 3.5% NaCl Solution

2014 ◽  
Vol 493 ◽  
pp. 684-690 ◽  
Author(s):  
Atria Pradityana ◽  
Sulistijono ◽  
Abdullah Shahab
Keyword(s):  
Weight Loss ◽  
Mild Steel ◽  
Corrosion Inhibitor ◽  
Potentiodynamic Polarization ◽  
Physical Adsorption ◽  
Steel Corrosion ◽  
Inhibition Mechanism ◽  
Chemical Adsorption ◽  
Inhibitor Concentration ◽  
Characteristics Analysis

The use of Myrmecodia Pendans (MP) extract as mild steel corrosion inhibitor in 3.5% NaCl media was investigated using weight loss and potentiodynamic polarization methods as well as characteristics analysis of the Fourier Transform Infra-Red (FTIR). Obtained data from weight loss and potentiodynamic polarization methods has shown the value of inhibition efficiency (% IE) is proportional toadded inhibitor concentration. Tafel constants data indicates that MP extract can act as cathodic and anodic inhibitors (type of mixed inhibitor). FTIR analysis also demonstrates the characteristics of MPextract. Occured inhibition mechanism was in the form of inhibitor adsorption process on metal surfacethat allegedly preceded by physical adsorption followed by chemical adsorption. Chemical adsorption is conceivable since metal surface scoping elevates as the increasing of inhibitor concentration.

Aloe Vera as Natural Corrosion Inhibitor on Mild in Seawater

2012 ◽  
Author(s):  
F Manuhutu ◽  
◽  
W B Wan Nik ◽  
M F Ahmad ◽  
C W M Noor ◽  
...  
Keyword(s):  
Corrosion Inhibitor ◽  
Aloe Vera ◽  
Natural Corrosion
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