An Electrochemical And Surface Analytical Estigation Of Iron Oxidation Passivation And Corrosion Inhibition
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An Electrochemical And Surface Analytical Estigation Of Iron Oxidation Passivation And Corrosion Inhibition
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Author : Michael Anthony Kamrath
language : en
Publisher:
Release Date : 1991
An Electrochemical And Surface Analytical Estigation Of Iron Oxidation Passivation And Corrosion Inhibition written by Michael Anthony Kamrath and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with categories.
An Electrochemical And Surface Analytical Investigation Of Iron Oxidation Passivation And Corrosion Inhibition
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Author : Michael Anthony Kamrath
language : en
Publisher:
Release Date : 1991
An Electrochemical And Surface Analytical Investigation Of Iron Oxidation Passivation And Corrosion Inhibition written by Michael Anthony Kamrath and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with categories.
A combined electrochemical and surface analytical study of iron oxidation, passive film formation and corrosion inhibitor interaction is presented. Ultrahigh vacuum surface analysis by Auger electron spectroscopy (AES), low energy electron diffraction (LEED), thermal desorption mass spectrometry (TDMS) and ion bombardment (depth profiling) was used to investigate iron oxide films formed on iron by gas phase oxygen exposure as well as electrochemical polarization in borate buffer and corrosion inhibitor solutions. Oxygen exposure to the Fe(100) single crystal surface has unambiguously shown the formation of a c(2 x 2) LEED pattern during the oxide evolution. This step in the oxidation of the (100) surface is often not observed, most likely as a result of prior surface contamination. A calibration technique is also outlined in which the oxide film formed by oxygen exposure can be used to estimate thicknesses of films formed in solution. Passive film investigations by composition depth profiling and TDMS after exposure to borate buffer at various potentials have shown the film is hydrated. Composition depth profiles also indicate that a two-phase oxide is present. An inner barrier layer likely forms by direct substrate oxidation while an outer deposit layer is formed by deposition of solution complexes, especially those containing boron. Surface crystallographic differences are evident in the cyclic voltammetry, the potential-dependent AES surface spectra, and the eventual film thicknesses. Composition depth profiles of films formed on iron after exposure to inhibitor solutions under varying conditions of dissolved ions, pH, and potential have provided clues to reaction mechanisms. Inorganic orthophosphate is not incorporated into the films under deaerated conditions at any potential. In the presence of divalent calcium ion in solution, the film composition is potential dependent. Cathodic polarization produces calcium phosphate films while anodic polarization leads to iron phosphate phases. Again, two-phase barrier and deposit layer films are evident. An organic phosphonic acid, hydroxyethanediphosphonic acid (HEDPA), behaves similar to orthophosphate in deaerated solutions. Aerated solutions produce thicker films as do lower pHs. The mechanism of inhibition in both inorganic and organic inhibitor solutions appears to be through anodic or cathodic polarization.
Surfaces Inhibition And Passivation
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Author : E. McCafferty
language : en
Publisher:
Release Date : 1986
Surfaces Inhibition And Passivation written by E. McCafferty and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1986 with Corrosion and anti-corrosives categories.
Electrochemical And Analytical Techniques For Sustainable Corrosion Monitoring
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Author : Jeenat Aslam
language : en
Publisher: Elsevier
Release Date : 2023-04-24
Electrochemical And Analytical Techniques For Sustainable Corrosion Monitoring written by Jeenat Aslam and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-04-24 with Science categories.
Electrochemical and Analytical Techniques for Sustainable Corrosion Monitoring presents established research and technology for corrosion monitoring and measurements. Corrosion reduction can be controlled via various ways, including process control, cathodic protection, metal impurity reduction, application of surface treatment methods, and incorporation of appropriate alloys. This is the first book that collectively describes corrosion inhibition measurements using chemical, electrochemical, and analytical methods. The book presents state-of-the art techniques for corrosion monitoring by providing detailed studies and testing methods. It also covers the most advanced, industry-oriented challenges for sustainable corrosion monitoring and measurements. The book is a valuable resource for scholars in academia, materials science and applied engineering and chemistry students, and corrosion engineers. Presents advanced, industry-oriented, and current challenges on electrochemical and analytical techniques for corrosion monitoring and measurements Includes up-to-date reference material including websites of interest and information about the latest research Provides electrochemical and analytical techniques utilized in modern academic and industrial platforms
An Electrochemical And Analytical Study Of Iron Corrosion Inhibitors
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Author : Ken Airey
language : en
Publisher:
Release Date : 1990
An Electrochemical And Analytical Study Of Iron Corrosion Inhibitors written by Ken Airey and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with categories.
Dissertation Abstracts International
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Author :
language : en
Publisher:
Release Date : 2002
Dissertation Abstracts International written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Dissertations, Academic categories.
Passivity And Protection Of Metals Against Corrosion
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Author : Nikon Danilovich Tomashov
language : en
Publisher:
Release Date : 1967
Passivity And Protection Of Metals Against Corrosion written by Nikon Danilovich Tomashov and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1967 with Technology & Engineering categories.
Metals Abstracts
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Author :
language : en
Publisher:
Release Date : 1998
Metals Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Metallurgy categories.
Electrochemical Thermodynamic Surface And Spectroscopic Study In Inhibition Of Iron Corrosion With Turmeric Root Extract Tre
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Author : Khuloud Almzarzie
language : en
Publisher:
Release Date : 2018
Electrochemical Thermodynamic Surface And Spectroscopic Study In Inhibition Of Iron Corrosion With Turmeric Root Extract Tre written by Khuloud Almzarzie and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018 with Electronic books categories.
Turmeric root extract was tested as corrosion inhibitor for iron in 0.5¬†M HCl, using potentiodynamic polarization and electrochemical impedance spectroscopy, scanning electron microscope, and energy dispersive X-ray analysis. The inhibition efficiency increases as the time of immersion rises but decreases with temperature rise. The Nyquist plots showed that the charge transfer resistance increases and the double-layer capacitance decreases as the time of immersion increases. Tafel results show that both corrosion current and corrosion speed are reduced with time of immersion. All impedance spectra of EIS tests exhibit one capacitive loop, which indicates that the corrosion reaction is controlled by charge transfer process. Inhibition efficiency increases with the concentration of the inhibitor reaching its maximum value, 88.90%, at 8¬†g/100¬†mL. Thermodynamic parameters, Ea, ,àÜH*, and ,àÜS*, were estimated, and the mechanism of corrosion and inhibition was discussed. The adsorption of turmeric root extract followed Langmuir adsorption isotherm.
Metallosurfactants
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Author : Surinder K. Mehta
language : en
Publisher: John Wiley & Sons
Release Date : 2022-05-31
Metallosurfactants written by Surinder K. Mehta and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-05-31 with Science categories.
Metallosurfactants Provides up-to-date coverage of the synthesis, properties, and applications of metallosurfactants Metallosurfactants: From Fundamentals to Catalytic and Biomedical Applications is a thorough introduction to amphiphilic compounds that allow to incorporate metal ions in the surfactant system. This comprehensive reference and guide describes the fundamentals of metal surfactant complexes, highlights recent advances in the field, and explores current and future applications and research areas. Gradually progressing from basic to advanced topics, the authors first explain the classification and characterization of metallosurfactants before delving into more complex concepts and various catalytic, sensing, and biomedical applications. The book begins with coverage of the synthesis of metallosurfactants and their surface, interfacial, and aggregation behavior. Subsequent chapters discuss applications of metallosurfactants in areas such as drug delivery, molecular machines, transfection, nanoparticle synthesis, and carbon monoxide-releasing molecules (CORMs). Other topics include the use of metallosurfactants as catalysts in organic reactions, and as anticancer and antimicrobial agents in drug delivery and formulation. This unique reference Provides an overview of the structure-function relationship, synthesis methods, and characterization of metallosurfactants Reviews current trends in metallosurfactant development and research Examines the use of metallosurfactants in a wide range of reactions, including esterolytic reactions and hydrogen generation Discusses advanced applications of metallosurfactants, e.g. as nanoreactors for nanoparticle synthesis, non-viral transfection vectors, and sensors Metallosurfactants: From Fundamentals to Catalytic and Biomedical Applications is an excellent introduction to the growing field of metallosurfactant chemistry as well as a concise, highly useful reference for researchers and scientists in both academia and industry.