Download or read book Organic Inhibitors of Corrosion of Metals Quantum Chemical Study written by Georgiy S. Beloglazov and published by LAP Lambert Academic Publishing. This book was released on 2013 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: Results of quantum chemical computations of molecules of organic inhibitors (OIn) of corrosion and hydrogen absorption by metals of 9 different series, for some of groups - also adsorbed on clusters modeling Al and Cd surface in various oxidation states (the model substrates contained up to 25 atoms of metal and O, H - in case of hydroxides) were compared to experimental data on efficiencies of protective action (EPA) against corrosion of metals. Energies of boundary orbitals (HOMO, LUMO) and dipole moments of isolated molecules of OIn as well as changes of atomic charges on OIn atoms when OIn molecule adsorbed have been computed using semi-empiric MNDO quantum chemistry method. Found correlations between EPA and changes of electric charge on heteroatoms (as N, O...), also change in value of dipole moment and in total molecular charge due to adsorption of OIn on the metal surface were most significant. Data on efficiencies against hydrogen absorption by steel were compared to data obtained from quantum chemistry for individual molecules. The material put together in this book is due to my father (the Academic at Russian Academy of Sci.) S.M. Beloglazov's inspiration and leadership.
Download or read book A Study on th Effect of Organic Inhibitors on the Corrosion of Steel and Zinc written by Narayana Hebbar and published by GRIN Verlag. This book was released on 2017-10-06 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presentation slides from the year 2017 in the subject Chemistry - Materials Chemistry, grade: 0.9, Srinivas School of Engineering, language: English, abstract: This presentation deals with organic inhibitors on the corrosion of steel and zinc.In the19th century, as the result of technological innovations, revolution in the industry, advancement in the science field, there was a growth in agricultural, industrial production, economic expansion and tremendous changes. People have changed the way of manufacturing processes during this time. All the hand works shifted to the machines. As a result of this revolution, the products were quite cheaper. Mild steel and zinc are very active in the presence of aggressive environment. In the presence of moisture and air, they give respective oxide. It results in the deterioration of metals take place that results in the failures in the industrial equipment in oil industries, gas industries, and water circulating cooling systems. These are main disadvantages of mild steel and zinc. The cause of corrosion of mild steel and zinc and the corrosion control is having critical fundamental, industrial and academic concern .In the existed literature various type of various research groups developed inhibitors. The developed inhibitors, few of them satisfied all the requirements of the industries and society. Even though they are toxic in nature, they aren’t showing inhibition at high temperature. In addition, no one has discussed complete mechanism of corrosion inhibition. In the present study, more attention is given to developing eco-friendly inhibitors. The complete mechanism of inhibition action of these inhibitors were evaluated by using practical and theoretical studies like weight loss, polarization, impedance, activation parameters, thermodynamic parameters. Scanning electron microscope is used to do morphological studies of the inhibitor. The quantum chemical studies are carried out to correlate the theoretical studies with experimental work of corrosion inhibitors. All the results were agreeing with each other. All the developed inhibitors find applications in industries.
Download or read book Green Corrosion Inhibitors written by V. S. Sastri and published by John Wiley & Sons. This book was released on 2012-02-14 with total page 267 pages. Available in PDF, EPUB and Kindle. Book excerpt: A book to cover developments in corrosion inhibitors is long overdue. This has been addressed by Dr Sastri in a book which presents fundamental aspects of corrosion inhibition, historical developments and the industrial applications of inhibitors. The book deals with the electrochemical principles and chemical aspects of corrosion inhibition, such as stability of metal complexes, the Hammett equation, hard and soft acid and base principle, quantum chemical aspects and Hansch' s model and also with the various surface analysis techniques, e.g. XPS, Auger, SIMS and Raman spectroscopy, that are used in industry for corrosion inhibition. The applications of corrosion inhibition are wide ranging. Examples given in this book include: oil and gas wells, petrochemical plants, steel reinforced cement, water cooling systems, and many more. The final chapters discuss economic and environmental considerations which are now of prime importance. The book is written for researchers in academia and industry, practicing corrosion engineers and students of materials science, engineering and applied chemistry.
Download or read book Heterocyclic Organic Corrosion Inhibitors written by Mumtaz A. Quraishi and published by Elsevier. This book was released on 2020-03-07 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: Heterocyclic Organic Corrosion Inhibitors: Principles and Applications aims to comprehend the synthesis and application of organic heterocyclic compounds as corrosion inhibitors in various corrosive environments. Considering the high importance of corrosion inhibitor development for different industries, the book provides the fundamentals and most recent advancements in this field. The book is an indispensable reference tool for industrialists and academicians working in the field of corrosion protection. - Provides a systematic overview of fundamentals and current advancements - Acts as a primary reference for beginner researchers in this arena - Presents a handy reference tool to different chemical industries - Covers fundamentals, industrial applications and most recent advancements in this area
Download or read book Molecular Modelling Quantum Chemical Studies and Corrosion Inhibitors written by Ahmed Chetouani and published by LAP Lambert Academic Publishing. This book was released on 2013 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: The corrosion is an (unwanted) reaction of materials with substances present in their environment. In the case of iron this reaction becomes visible for instance when rust forms. The reasons for this corrosion are diverse and are covered very extensively in the literature. The study of corrosion processes and their inhibition by organic inhibitors is a very active field of research. The presence of actives centres in the molecular structure has a major effect on the inhibition efficiency and consequently on the phenomenon of adsorption on some metals surface. The inhibition effect mainly depends on some physicochemical and electronic properties of the inhibitor which relate to its functional groups, steric effects, electronic density of donor atoms, and orbital character of donating electrons. Corrosion inhibition of has been elucidated by means of theory DFT-derived reactivity indexes. The calculated quantum chemical parameters have already proven to be very useful in determining the molecular structure as well as elucidating the electronic structure and reactivity. Thus, it has become a common practice to carry out quantum chemical calculations in corrosion inhibition studies.
Download or read book Organic Inhibitors of Corrosion of Metals written by Y.I. Kuznetsov and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 295 pages. Available in PDF, EPUB and Kindle. Book excerpt: Organic Inhibitors of Corrosion of Metals provides a detailed review of the various theories advanced to explain the mechanisms of organic inhibitors. Author Yu.I. Kuznetsov explores the role of potential and charge of the metal, the nature of the organic species used as the inhibitor, and the function of the solvent. The author draws connections between these key elements and the processes of passivation, pitting, synergism, and complex formation. This unique volume brings together the mechanistic and practical aspects of corrosion control by organic inhibitors.
Download or read book Organic Corrosion Inhibitors written by Chandrabhan Verma and published by John Wiley & Sons. This book was released on 2021-09-11 with total page 530 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides comprehensive coverage of organic corrosion inhibitors used in modern industrial platforms, including current developments in the design of promising classes of organic corrosion inhibitors Corrosion is the cause of significant economic and safety-related problems that span across industries and applications, including production and processing operations, transportation and public utilities infrastructure, and oil and gas exploration. The use of organic corrosion inhibitors is a simple and cost-effective method for protecting processes, machinery, and materials while remaining environmentally acceptable. Organic Corrosion Inhibitors: Synthesis, Characterization, Mechanism, and Applications provides up-to-date coverage of all aspects of organic corrosion inhibitors, including their fundamental characteristics, synthesis, characterization, inhibition mechanism, and industrial applications. Divided into five sections, the text first covers the basics of corrosion and prevention, experimental and computational testing, and the differences between organic and inorganic corrosion inhibitors. The next section describes various heterocyclic and non-heterocyclic corrosion inhibitors, followed by discussion of the corrosion inhibition characteristics of carbohydrates, amino acids, and other organic green corrosion inhibitors. The final two sections examine the corrosion inhibition properties of carbon nanotubes and graphene oxide, and review the application of natural and synthetic polymers as corrosion inhibitors. Featuring contributions by leading researchers and scientists from academia and industry, this authoritative volume: Discusses the latest developments and issues in the area of corrosion inhibition, including manufacturing challenges and new industrial applications Explores the development and implementation of environmentally-friendly alternatives to traditional toxic corrosion inhibitors Covers both established and emerging classes of corrosion inhibitors as well as future research directions Describes the anticorrosive mechanisms and effects of acyclic, cyclic, natural, and synthetic corrosion inhibitors Offering an interdisciplinary approach to the subject, Organic Corrosion Inhibitors: Synthesis, Characterization, Mechanism, and Applications is essential reading for chemists, chemical engineers, researchers, industry professionals, and advanced students working in fields such as corrosion inhibitors, corrosion engineering, materials science, and applied chemistry.
Download or read book Green Corrosion Inhibition written by Chandrabhan Verma and published by Royal Society of Chemistry. This book was released on 2022-12-12 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: Corrosion affects every industry in which metal is involved, from manufacturing machinery to transport pipelines, and it is estimated to cost the global economy trillions of dollars per year. Many of the traditional methods for inhibiting corrosion are highly toxic (such as hexavalent chromium) or do not degrade readily in the environment (such as Benzotriazole) meaning they pose a risk to human and environmental health. Much recent work in the area has gone into searching for greener alternatives that will be both safe and effective. Beginning with a look at the fundamentals of corrosion inhibition and an explanation of the concepts of green chemistry, this book discusses various types of chemical that have been tested for their potential as greener corrosion inhibitors with reference to industrial applications. Green Corrosion Inhibition is a valuable reference for chemists and chemical engineers working in both research and design and academia who want to learn more about green corrosion inhibitors, their synthesis, design, and industrial scale applications.
Download or read book Handbook of Heterocyclic Corrosion Inhibitors written by Chandrabhan Verma and published by CRC Press. This book was released on 2023-12-21 with total page 451 pages. Available in PDF, EPUB and Kindle. Book excerpt: Handbook of Heterocyclic Corrosion Inhibitors presents a comprehensive overview of corrosion inhibition using heterocyclic compounds. It covers numerous, emerging heterocyclic compound-based industrial corrosion inhibitors that are oriented toward minimizing corrosive damages and prevention methods. Describing the fundamentals of heterocycles, corrosion, and corrosion inhibition, the book considers the potential of different series of N-heterocycles, such as acridine and acridone-based, carbazole-based, imidazole and imidazoline-based, indole and indoline-based, melamine-based, etc. It presents the corrosion inhibition potential of oxygen- and sulfur-based heterocycles compounds. The book also explores issues with corrosion as a result of improper design with descaling, acidification, refinery, and transport processes. The book will be of interest to researchers and graduate students studying corrosion science, heterocyclic chemistry, material science and engineering, energy, chemistry, and colloid science. It will also be a valuable reference for corrosion scientists and R&D engineers working in industrial corrosion and industrial-based corrosion protection systems.
Download or read book Organic Corrosion Inhibitors written by Chandrabhan Verma and published by John Wiley & Sons. This book was released on 2021-12-02 with total page 530 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides comprehensive coverage of organic corrosion inhibitors used in modern industrial platforms, including current developments in the design of promising classes of organic corrosion inhibitors Corrosion is the cause of significant economic and safety-related problems that span across industries and applications, including production and processing operations, transportation and public utilities infrastructure, and oil and gas exploration. The use of organic corrosion inhibitors is a simple and cost-effective method for protecting processes, machinery, and materials while remaining environmentally acceptable. Organic Corrosion Inhibitors: Synthesis, Characterization, Mechanism, and Applications provides up-to-date coverage of all aspects of organic corrosion inhibitors, including their fundamental characteristics, synthesis, characterization, inhibition mechanism, and industrial applications. Divided into five sections, the text first covers the basics of corrosion and prevention, experimental and computational testing, and the differences between organic and inorganic corrosion inhibitors. The next section describes various heterocyclic and non-heterocyclic corrosion inhibitors, followed by discussion of the corrosion inhibition characteristics of carbohydrates, amino acids, and other organic green corrosion inhibitors. The final two sections examine the corrosion inhibition properties of carbon nanotubes and graphene oxide, and review the application of natural and synthetic polymers as corrosion inhibitors. Featuring contributions by leading researchers and scientists from academia and industry, this authoritative volume: Discusses the latest developments and issues in the area of corrosion inhibition, including manufacturing challenges and new industrial applications Explores the development and implementation of environmentally-friendly alternatives to traditional toxic corrosion inhibitors Covers both established and emerging classes of corrosion inhibitors as well as future research directions Describes the anticorrosive mechanisms and effects of acyclic, cyclic, natural, and synthetic corrosion inhibitors Offering an interdisciplinary approach to the subject, Organic Corrosion Inhibitors: Synthesis, Characterization, Mechanism, and Applications is essential reading for chemists, chemical engineers, researchers, industry professionals, and advanced students working in fields such as corrosion inhibitors, corrosion engineering, materials science, and applied chemistry.
Download or read book Organic Compounds as Corrosion Inhibitor of Carbon Steel in Acid Media written by Ali Anejjar and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Corrosion Inhibitors written by Raymond Wilkerson and published by Nova Science Publishers. This book was released on 2021 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Corrosion, which refers to the gradual destruction of materials by chemical and electrochemical reactions with their environment, presents a costly problem for a wide variety of industries. As such, several methods have been developed to inhibit the progression of corrosion. This monograph contains four chapters that explain these corrosion inhibitors in detail. Chapter One overviews fundamental aspects of corrosion inhibitors such as phenomenology, mechanism of corrosion inhibition, and the development of environmentally friendly and sustainable corrosion inhibitors. Chapter Two explains the factors that affect the efficiency of corrosion inhibitors and summarizes the different types of corrosion and their inhibition processes. Chapter Three showcases the various approaches for preventing tin corrosion. Finally, Chapter Four presents most of the aza-heterocycles derivatives which are mentioned in literature for their properties of corrosion inhibitors for steels, metals and alloys, their synthesis, as well as experimental results that have highlighted these materials used for corrosion tests, the proposed mechanisms, acidic or basic media used, and the quantum chemical parameters that are correlated with their properties"--
Download or read book Computational Modelling and Simulations for Designing of Corrosion Inhibitors written by Dakeshwar Kumar Verma and published by Elsevier. This book was released on 2023-04-19 with total page 566 pages. Available in PDF, EPUB and Kindle. Book excerpt: Computational Modeling and Simulations for Designing of Corrosion Inhibitors: Fundamentals and Realistic Applications offers a collection of major advancements in the field of computational modeling for the design and testing of corrosion inhibition effectiveness of organic corrosion inhibitors. This guide presents the latest developments in molecular modeling of organic compounds using computational software, which has emerged as a powerful approach for theoretical determination of corrosion inhibition potentials of organic compounds. The book covers common techniques involved in theoretical studies of corrosion inhibition potentials, and mechanisms such as density functional theory, molecular dynamics, Monte Carlo simulations, artificial neural networks, and quantitative structure-activity relationship. - Covers basic, fundamental principles, advantages, parameters, and applications of computational and molecular modeling for designing potential corrosion inhibitors for metals and alloys - Describes advancements of computational modeling for the design of organic corrosion inhibitors and applications in electrochemical engineering and materials science - Focuses on the most advanced applications in industry-oriented fields, including current challenges - Includes websites of interest and information about the latest research
Download or read book Dft and Quantum Chemical Studies for Heterocyclic Compounds written by Abdelkader Zarrouk and published by LAP Lambert Academic Publishing. This book was released on 2012-08 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study of corrosion processes and their inhibition by organic inhibitors is a very active field of research. The presence of nitrogen, oxygen, phosphorous and sulphur in the organic molecules has a major effect on the inhibition efficiency and consequently on the phenomenon of adsorption on some metals surface. A great number of heterocyclic compounds were found to be excellent inhibitors of copper and steel corrosion. The inhibition effect mainly depends on some physicochemical and electronic properties of the organic inhibitor which relate to its functional groups, steric effects, electronic density of donor atoms, and orbital character of donating electrons. DFT Quantum chemical methods have already proven to be very useful in determining the molecular structure as well as elucidating the electronic structure and reactivity. Thus, it has become a common practice to carry out quantum chemical calculations in corrosion inhibition studies.
Download or read book Chloramphenicol and hydralazine as corrosion inhibitors for steel written by Dr. B M Prasanna and published by GRIN Verlag. This book was released on 2017-10-16 with total page 101 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research Paper (postgraduate) from the year 2016 in the subject Chemistry - Materials Chemistry, grade: 10, , language: English, abstract: The corrosion inhibition mechanism of Chlorophenicol and Hydralazine for the mild steel in 1M HCl was studied by chemical, electrochemical and adsorption measurement at 303-333 K temperature regions. The inhibition efficiency of the Chlorophenical and Hydralazine increases with increasing inhibitor but decreases with increase of temperature. The mechanism of the inhibition action attributed due to the adsorption of inhibitor on the surface of the metal, for which this adsorption process obeys Langmuir adsorption isotherm. The electrochemical Tafel analysis shows that the inhibitor acts as a mixed type, and gets adsorbed by either physically or chemically. Surface study was done by scanning electron microscopic method due to the formation of protective film on the metal surface.
Download or read book Sustainable Corrosion Inhibitors written by Inamuddin and published by Materials Research Forum LLC. This book was released on 2021-08-05 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book presents the current status of corrosion inhibitor technology. A special focus is placed on various types of green corrosion inhibitors and their applications. Keywords: Green Corrosion Inhibitors, Sustainable Corrosion Inhibitors, Green Organic Inhibitors, Inhibitors from Biomass and Natural Sources, Polysaccharide, Applications for Concrete, Coatings, Copper and Copper Alloys, Corrosion Control in Conventional and Monolithic Metals.
Download or read book Theory and Applications of Green Corrosion Inhibitors written by Inamuddin and published by Materials Research Forum LLC. This book was released on 2021-01-05 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book presents theoretical insights, characterization tools and mechanisms of green corrosion inhibitors and their industrial applications in areas such as reinforced concrete, coating, aircraft, oil and gas, acid pickling, water industry and the protection of metals and alloys used in electronic devices. Keywords: Biocorrosion Prevention, Green Corrosion Inhibitors, Corrosion Prevention of Metals & Alloys, Corrosion Inhibitors for Concrete, Corrosion Prevention for Electronic Devices, Biological Wastes, Biodegradable Plants, Smart Coatings, Quantum Chemistry, Molecular Dynamics, Simulation, Quantitative Structure Activity Relationship (QSAR), Pyrazine Corrosion Inhibitors.
