Adsorption and inhibitive properties of methanol extract of Eeuphorbia Heterophylla for the corrosion of copper in 0.5 M nitric acid solutions
The adsorption and the inhibitive properties of methanol extract of Euphorbia heterophylla on copper in 0.5 M HNO3 have been studied by weight loss method at different temperatures (30-50°C), potentiodynamic polarization, electrochemical impedance spectroscopy (EIS) and electrochemical frequency mod...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Sciendo
2017-03-01
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| Series: | Polish Journal of Chemical Technology |
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| Online Access: | https://doi.org/10.1515/pjct-2017-0014 |
| _version_ | 1818689393058119680 |
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| author | Fouda A. S. Elmorsi M. A. Abou-Elmagd B. S. |
| author_facet | Fouda A. S. Elmorsi M. A. Abou-Elmagd B. S. |
| author_sort | Fouda A. S. |
| collection | DOAJ |
| description | The adsorption and the inhibitive properties of methanol extract of Euphorbia heterophylla on copper in 0.5 M HNO3 have been studied by weight loss method at different temperatures (30-50°C), potentiodynamic polarization, electrochemical impedance spectroscopy (EIS) and electrochemical frequency modulation (EFM) techniques. Also, the surface morphology was analyzed by scanning electron microscopy (SEM). It was found that the inhibition efficiency increases with increasing extract doses and decreased with increasing temperature. The polarization data revealed that this extract acts as mixed type inhibitor. The adsorption process was more favored at lower temperatures with larger negative standard free energy. The extract was adsorbed physically on the copper surface followed Frumkin isotherm. |
| first_indexed | 2024-12-17T12:09:23Z |
| format | Article |
| id | doaj.art-4fcc14de9cbd4927956cca119e3a7b7b |
| institution | Directory Open Access Journal |
| issn | 1899-4741 |
| language | English |
| last_indexed | 2024-12-17T12:09:23Z |
| publishDate | 2017-03-01 |
| publisher | Sciendo |
| record_format | Article |
| series | Polish Journal of Chemical Technology |
| spelling | doaj.art-4fcc14de9cbd4927956cca119e3a7b7b2022-12-21T21:49:29ZengSciendoPolish Journal of Chemical Technology1899-47412017-03-011919510310.1515/pjct-2017-0014pjct-2017-0014Adsorption and inhibitive properties of methanol extract of Eeuphorbia Heterophylla for the corrosion of copper in 0.5 M nitric acid solutionsFouda A. S.0Elmorsi M. A.1Abou-Elmagd B. S.2Mansoura University, Chemistry Department, Faculty of Science, Mansoura, EgyptTanta University, Chemistry Department, Faculty of Science, Tanta, EgyptMansoura University, Chemistry Department, Faculty of Science, Mansoura, EgyptThe adsorption and the inhibitive properties of methanol extract of Euphorbia heterophylla on copper in 0.5 M HNO3 have been studied by weight loss method at different temperatures (30-50°C), potentiodynamic polarization, electrochemical impedance spectroscopy (EIS) and electrochemical frequency modulation (EFM) techniques. Also, the surface morphology was analyzed by scanning electron microscopy (SEM). It was found that the inhibition efficiency increases with increasing extract doses and decreased with increasing temperature. The polarization data revealed that this extract acts as mixed type inhibitor. The adsorption process was more favored at lower temperatures with larger negative standard free energy. The extract was adsorbed physically on the copper surface followed Frumkin isotherm.https://doi.org/10.1515/pjct-2017-0014acid corrosioncoppergreen inhibitoradsorptionkinetic parameters |
| spellingShingle | Fouda A. S. Elmorsi M. A. Abou-Elmagd B. S. Adsorption and inhibitive properties of methanol extract of Eeuphorbia Heterophylla for the corrosion of copper in 0.5 M nitric acid solutions Polish Journal of Chemical Technology acid corrosion copper green inhibitor adsorption kinetic parameters |
| title | Adsorption and inhibitive properties of methanol extract of Eeuphorbia Heterophylla for the corrosion of copper in 0.5 M nitric acid solutions |
| title_full | Adsorption and inhibitive properties of methanol extract of Eeuphorbia Heterophylla for the corrosion of copper in 0.5 M nitric acid solutions |
| title_fullStr | Adsorption and inhibitive properties of methanol extract of Eeuphorbia Heterophylla for the corrosion of copper in 0.5 M nitric acid solutions |
| title_full_unstemmed | Adsorption and inhibitive properties of methanol extract of Eeuphorbia Heterophylla for the corrosion of copper in 0.5 M nitric acid solutions |
| title_short | Adsorption and inhibitive properties of methanol extract of Eeuphorbia Heterophylla for the corrosion of copper in 0.5 M nitric acid solutions |
| title_sort | adsorption and inhibitive properties of methanol extract of eeuphorbia heterophylla for the corrosion of copper in 0 5 m nitric acid solutions |
| topic | acid corrosion copper green inhibitor adsorption kinetic parameters |
| url | https://doi.org/10.1515/pjct-2017-0014 |
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