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Adsorption and inhibition analysis of aconitine and tubocurarinealkaloids as eco-friendly inhibitors of pitting corrosion in ASTM โ" A47low carbon steel in HCl acid environment |
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| รหัสดีโอไอ | |
| Creator | 1. Benedict Ushaka Ugi 2. Victoria Mfon Bassey 3. Mbang Eze Obeten 4. Stephen Adie Adalikwu3 5. Chijioke Everistus Omaliko 6. Desmond Obi Nandi |
| Title | Adsorption and inhibition analysis of aconitine and tubocurarinealkaloids as eco-friendly inhibitors of pitting corrosion in ASTM โ" A47low carbon steel in HCl acid environment |
| Publisher | Research and Development Office, Prince of Songkla University |
| Publication Year | 2565 |
| Journal Title | Songklanakarin Journal of Science an Technology (SJST) |
| Journal Vol. | 44 |
| Journal No. | 3 |
| Page no. | 627-635 |
| Keyword | tubocurarine, aconitine, alkaloids, corrosion, polarization, adsorption, impedance |
| URL Website | https://rdo.psu.ac.th/sjst/index.php |
| ISSN | 0125-3395 |
| Abstract | The research on the adsorption and inhibition analysis of aconitine alkaloid (ACA) and tubocurarine alkaloid (TBA) aseco-friendly inhibitors of pitting corrosion in ASTM โ" A47 low carbon steel in HCl acid was carried out under the followingexperimental and analytical methods: gravimetric method, electrochemical impedance spectroscopy, potentiodynamicpolarization, and scanning electron microscopy method. Results revealed good inhibitors as inhibition efficiencies were recordedat 98.8% and 91.2% for tubocurarine and aconitine alkaloids, respectively. Electrochemical data strongly supported the efficacyof both inhibitors as earlier presented by the chemical methods as trend in values of charge transfer resistance, double layercapacitance, etc. Were in accordance with standards for a good inhibitor. The inhibitors were seen to be spontaneous, stabled,endothermic and physically adsorbed. Adsorption of the inhibitors on metal surface obeyed Langmuir, El-Awady, Freundlich,and Temkin adsorption isotherm. A monolayer physical adsorption was defined for the system. |
