The Experts below are selected from a list of 36564 Experts worldwide ranked by ideXlab platform
Gokhan Gece - One of the best experts on this subject based on the ideXlab platform.
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the use of quantum chemical methods in Corrosion Inhibitor studies
Corrosion Science, 2008Co-Authors: Gokhan GeceAbstract:Quantum chemical methods are particularly significant in the study of electrochemistry and provide researchers with a relatively quick way of studying the structure and behaviour of Corrosion Inhibitors. The originality of this review article is based on the fact that it is the first and unique general reference for all those interested in the use of quantum chemical methods in Corrosion Inhibitor studies. It begins with a concise summary of the most used quantum chemical parameters and methods and then summarizes the results of research articles in Corrosion science over the past 20 years.
Zhengshan Chen - One of the best experts on this subject based on the ideXlab platform.
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Corrosion performance of steel reinforcement in simulated concrete pore solutions in the presence of imidazoline quaternary ammonium salt Corrosion Inhibitor
Construction and Building Materials, 2014Co-Authors: Jie Hu, Qijun Yu, Zhengshan ChenAbstract:Abstract In this study, the Corrosion inhibition performance of steel reinforcement in the simulated concrete pore solution containing 3.5 wt.% NaCl in the presence of a tailored cationic type of imidazoline quaternary ammonium salt Corrosion Inhibitor was characterized by electrochemical measurements and surface analysis. The results indicate that the IQS can significantly improve the polarization resistance and pitting potential and reduce the Corrosion current density of reinforcement. The main inhibition mechanism is most likely due to the adsorption of the Corrosion Inhibitor on the steel surface, leading to a reduced Corrosion current density of the steel reinforcement.
Indra Wahyudhin Fathona - One of the best experts on this subject based on the ideXlab platform.
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pH-controlled self-healing polymer coatings with cellulose nanofibers providing an effective release of Corrosion Inhibitor
Corrosion Science, 2016Co-Authors: Akira Yabuki, Tatsunori Shiraiwa, Indra Wahyudhin FathonaAbstract:Polymer coatings with various pH values and containing cellulose nanofibers and a Corrosion Inhibitor were applied to carbon steels for Corrosion inhibition. The polarization resistance of scratches made to the prepared coatings was measured in a corrosive solution. The resistance of the scratched coatings was largely dependent on the pH of the polymer. The scratched polymer coating prepared at pH 11.4 showed a drastic increase in polarization resistance just after immersion, and was the highest measured after a 24. h Corrosion test. A Corrosion-protective film was formed on the scratched portion.
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self healing polymer coatings with cellulose nanofibers served as pathways for the release of a Corrosion Inhibitor
Corrosion Science, 2014Co-Authors: Akira Yabuki, Akihiro Kawashima, Indra Wahyudhin FathonaAbstract:Abstract Polymer coatings containing cellulose nanofibers were applied to carbon steel for Corrosion inhibition. The specimens were scratched with a knife-edge, and then polarization resistance was monitored in a sodium chloride solution. The polarization resistance of the scratched specimen containing nanofibers and Corrosion Inhibitor was higher than that of a polymer coating that contained only a Corrosion Inhibitor. The optimal mixing ratio of Corrosion Inhibitor for cellulose nanofibers was 4. Empty holes were confirmed on a cross-section of the polymer coating after the Corrosion test, which showed that the nanofibers served as pathways for the release of the Corrosion Inhibitor.
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Self-healing polymer coatings with cellulose nanofibers served as pathways for the release of a Corrosion Inhibitor
Corrosion Science, 2014Co-Authors: Akira Yabuki, Akihiro Kawashima, Indra Wahyudhin FathonaAbstract:Polymer coatings containing cellulose nanofibers were applied to carbon steel for Corrosion inhibition. The specimens were scratched with a knife-edge, and then polarization resistance was monitored in a sodium chloride solution. The polarization resistance of the scratched specimen containing nanofibers and Corrosion Inhibitor was higher than that of a polymer coating that contained only a Corrosion Inhibitor. The optimal mixing ratio of Corrosion Inhibitor for cellulose nanofibers was 4. Empty holes were confirmed on a cross-section of the polymer coating after the Corrosion test, which showed that the nanofibers served as pathways for the release of the Corrosion Inhibitor. © 2014 Elsevier Ltd.
Akira Yabuki - One of the best experts on this subject based on the ideXlab platform.
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pH-controlled self-healing polymer coatings with cellulose nanofibers providing an effective release of Corrosion Inhibitor
Corrosion Science, 2016Co-Authors: Akira Yabuki, Tatsunori Shiraiwa, Indra Wahyudhin FathonaAbstract:Polymer coatings with various pH values and containing cellulose nanofibers and a Corrosion Inhibitor were applied to carbon steels for Corrosion inhibition. The polarization resistance of scratches made to the prepared coatings was measured in a corrosive solution. The resistance of the scratched coatings was largely dependent on the pH of the polymer. The scratched polymer coating prepared at pH 11.4 showed a drastic increase in polarization resistance just after immersion, and was the highest measured after a 24. h Corrosion test. A Corrosion-protective film was formed on the scratched portion.
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self healing polymer coatings with cellulose nanofibers served as pathways for the release of a Corrosion Inhibitor
Corrosion Science, 2014Co-Authors: Akira Yabuki, Akihiro Kawashima, Indra Wahyudhin FathonaAbstract:Abstract Polymer coatings containing cellulose nanofibers were applied to carbon steel for Corrosion inhibition. The specimens were scratched with a knife-edge, and then polarization resistance was monitored in a sodium chloride solution. The polarization resistance of the scratched specimen containing nanofibers and Corrosion Inhibitor was higher than that of a polymer coating that contained only a Corrosion Inhibitor. The optimal mixing ratio of Corrosion Inhibitor for cellulose nanofibers was 4. Empty holes were confirmed on a cross-section of the polymer coating after the Corrosion test, which showed that the nanofibers served as pathways for the release of the Corrosion Inhibitor.
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Self-healing polymer coatings with cellulose nanofibers served as pathways for the release of a Corrosion Inhibitor
Corrosion Science, 2014Co-Authors: Akira Yabuki, Akihiro Kawashima, Indra Wahyudhin FathonaAbstract:Polymer coatings containing cellulose nanofibers were applied to carbon steel for Corrosion inhibition. The specimens were scratched with a knife-edge, and then polarization resistance was monitored in a sodium chloride solution. The polarization resistance of the scratched specimen containing nanofibers and Corrosion Inhibitor was higher than that of a polymer coating that contained only a Corrosion Inhibitor. The optimal mixing ratio of Corrosion Inhibitor for cellulose nanofibers was 4. Empty holes were confirmed on a cross-section of the polymer coating after the Corrosion test, which showed that the nanofibers served as pathways for the release of the Corrosion Inhibitor. © 2014 Elsevier Ltd.
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Self-healing capability of porous polymer film with Corrosion Inhibitor inserted for Corrosion protection
Corrosion Science, 2011Co-Authors: Akira Yabuki, Toshinori NishisakaAbstract:Abstract Porous polymer films with varying pore sizes were prepared by changing the evaporation time of an organic solvent. A specimen was prepared consisting of porous polymer film containing Corrosion Inhibitor coated onto carbon steel. The specimens were scratched with a knife-edge, and the polarization resistance was monitored in a sodium chloride solution. An increase in polarization resistance was confirmed, and the films with larger-sized pores demonstrated a higher self-healing capability.
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Self-healing capability of porous polymer film with Corrosion Inhibitor inserted for Corrosion protection
Corrosion Science, 2011Co-Authors: Akira Yabuki, Toshinori NishisakaAbstract:Porous polymer films with varying pore sizes were prepared by changing the evaporation time of an organic solvent. A specimen was prepared consisting of porous polymer film containing Corrosion Inhibitor coated onto carbon steel. The specimens were scratched with a knife-edge, and the polarization resistance was monitored in a sodium chloride solution. An increase in polarization resistance was confirmed, and the films with larger-sized pores demonstrated a higher self-healing capability. © 2011 Elsevier Ltd.
B Hammouti - One of the best experts on this subject based on the ideXlab platform.
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Natural product extract as eco-friendly Corrosion Inhibitor for mild steel in 1.0 M HCl
Der Pharmacia Lettre, 2016Co-Authors: A. Salhi, A Bouyanzer, I. El Mounsi, I. Hamdani, H. Bendaha, R. Rmili, H. Akichouh, M. Allali, A. Zarrouck, B HammoutiAbstract:In this work, the methanolic extract of Mentha Suaveolens (EMMS) has been studied as Inhibitor mild steel in hydrochloric acid (1.0 M HCl) solution using by weight loss measurement, potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) techniques. The presence of this extract reduces remarkably the Corrosion rate of mild steel in acidic solution. The effect of temperature on the Corrosion behavior of mild steel was studied in the range of 313-343 K. The inhibition mechanism estimated from temperature dependence of inhibition efficiency as well as activation parameters show that the extract inhibits Corrosion via physical adsorption of the extract on the surface of the mild steel. Adsorption characteristic of the extract were approxilated by the Langmuir isotherm. The results from this Corrosion test clearly reveal that the extract behaves as a mixed type Corrosion Inhibitor with the highest inhibition at 2.0 g/L. Double layer capacitance, (Cdl) decrease indicates that a layer was form indicating the formation of a surface film. This reflects the Inhibitor does retard the Corrosion rate.
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pennyroyal oil from mentha pulegium as Corrosion Inhibitor for steel in 1 m hcl
Materials Letters, 2006Co-Authors: A Bouyanzer, B Hammouti, L MajidiAbstract:Natural oil extracted from Pennyroyal Mint (Mentha pulegium, PM) was evaluated as Corrosion Inhibitor of steel in molar hydrochloric using weight loss measurements, electrochemical polarisation and EIS methods. The naturally oil was found to retard the Corrosion rate of steel. The inhibition efficiency was found to increase with oil content to attain 80% at 2.76 g/L. PM oil acts as a cathodic Inhibitor. The increase in temperature leads to an increase in the inhibition efficiency of the natural substance. The adsorption isotherm of natural product on the steel has been determined.
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thermodynamic properties of 2 5 bis 4 methoxyphenyl 1 3 4 oxadiazole as a Corrosion Inhibitor for mild steel in normal sulfuric acid medium
Corrosion Science, 2006Co-Authors: M Bouklah, B Hammouti, M Lagrenee, Fouad BentissAbstract:Abstract The Corrosion rates in the presence of 2,5-bis(4-methoxyphenyl)-1,3,4-oxadiazole (4-MOX) as a steel Corrosion Inhibitor in 0.5 M sulfuric acid, were measured by the weight loss method, in the range of temperatures from 303 to 343 K. Results obtained revealed that 4-MOX performed excellently as a Corrosion Inhibitor for mild steel in sulfuric acid media and its efficiency attains more than 96.19% at 8 × 10 −4 M at 333 K. The inhibition was assumed to occur via adsorption of the oxadiazole molecules on the metal surface. The Langmuir adsorption isotherm was tested for their fit to the experimental data. The apparent activation energies, enthalpies and entropies of the dissolution process and the free energies and enthalpies for the adsorption process were determined and discussed. The fundamental thermodynamic functions were used to glean important information about 4-MOX Inhibitory behaviour.
