[PDF] Effects Of Nonuniform Potential And Current Distributions In Electrochemical Systems eBook

Author : Johan Deconinck
Publisher : Springer Science & Business Media
Page : 299 pages
File Size : 43,80 MB
Release : 2012-12-06
Category : Science
ISBN : 3642847161

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This book reponds to the increasing demand of computer mo- delling of electrochemical processes in order to improve their speed and efficiency. The fundamental transport equa- tions in dilute solutions are given and it is established in detail under what circumstances a potential model with non- linear boundary conditions, involved by electrode reactions, can beused. Attention is directed towards the most impor- tant solution techniquesFEM, FDM and BEM and towards the solution of the non-linear system of equations (Successive Substitution, Newton-Raphson). Using the BEM, several two- dimensional and axisymmetrical examples of current density distributions are given and quantitative data, obtained in a copper electro-refining cell, are compared with calculated results. Applying Faraday's Law and the BEM, simulation of electro-deposition, electro-chemical levelling and machining are treated. Accuracy and stabilityare emphasized.

Author : T. W. Chapman
Publisher : The Electrochemical Society
Page : 185 pages
File Size : 12,8 MB
Release : 2008-10
Category : Science
ISBN : 1566776597

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Quantitative methods for the analysis and design of electrochemical systems have progressed greatly over the past forty years. Much of this progress is due to the work of Professor John Newman of the University of California-Berkeley. A tutorial symposium was organized to recognize Prof. Newman¿s contributions on the occasion of his 70th birthday. This issue contains a series of invited lectures covering the basic principles of electrochemical engineering as well as a variety of examples of applications in electrodeposition, fuel cells, batteries, and electrolytic processes.

Author : John Newman
Publisher : John Wiley & Sons
Page : 608 pages
File Size : 14,94 MB
Release : 2021-01-07
Category : Science
ISBN : 1119514606

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Provides a comprehensive understanding of a wide range of systems and topics in electrochemistry This book offers complete coverage of electrochemical theories as they pertain to the understanding of electrochemical systems. It describes the foundations of thermodynamics, chemical kinetics, and transport phenomena—including the electrical potential and charged species. It also shows how to apply electrochemical principles to systems analysis and mathematical modeling. Using these tools, the reader will be able to model mathematically any system of interest and realize quantitative descriptions of the processes involved. This brand new edition of Electrochemical Systems updates all chapters while adding content on lithium battery electrolyte characterization and polymer electrolytes. It also includes a new chapter on impedance spectroscopy. Presented in 4 sections, the book covers: Thermodynamics of Electrochemical Cells, Electrode Kinetics and Other Interfacial Phenomena, Transport Processes in Electrolytic Solutions, and Current Distribution and Mass Transfer in Electrochemical Systems. It also features three appendixes containing information on: Partial Molar Volumes, Vectors and Tensors, and Numerical Solution of Coupled, Ordinary Differential Equations. Details fundamental knowledge with a thorough methodology Thoroughly updated throughout with new material on topics including lithium battery electrolyte characterization, impedance analysis, and polymer electrolytes Includes a discussion of equilibration of a charged polymer material and an electrolytic solution (the Donnan equilibrium) A peerless classic on electrochemical engineering Electrochemical Systems, Fourth Edition is an excellent resource for students, scientists, and researchers involved in electrochemical engineering.

Author : Mark E. Orazem
Publisher : John Wiley & Sons
Page : 767 pages
File Size : 47,60 MB
Release : 2017-04-10
Category : Science
ISBN : 1119341221

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Provides fundamentals needed to apply impedance spectroscopy to a broad range of applications with emphasis on obtaining physically meaningful insights from measurements. Emphasizes fundamentals applicable to a broad range of applications including corrosion, biomedical devices, semiconductors, batteries, fuel cells, coatings, analytical chemistry, electrocatalysis, materials, and sensors Provides illustrative examples throughout the text that show how the principles are applied to common impedance problems New Edition has improved pedagogy, with more than twice the number of examples New Edition has more in-depth treatment of background material needed to understand impedance spectroscopy, including electrochemistry, complex variables, and differential equations New Edition includes expanded treatment of the influence of mass transport and kinetics and reflects recent advances in understanding frequency dispersion and constant-phase elements

Author : John Bockris
Publisher : Springer Science & Business Media
Page : 579 pages
File Size : 19,64 MB
Release : 2013-06-29
Category : Science
ISBN : 1475748256

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It is now time for a comprehensive treatise to look at the whole field of electrochemistry. The present treatise was conceived in 1974, and the earliest invitations to authors for contributions were made in 1975. The completion of the early been delayed by various factors. volumes has There has been no attempt to make each article emphasize the most recent situation at the expense of an overall statement of the modern view. This treatise is not a collection of articles from Recent Advances in Electrochemistry or Modern Aspects of Electrochemistry. It is an attempt at making a mature statement about the present position in the vast area of what is best looked at as a new interdisciplinary field. Texas A & M University J. O'M. Bockris University of Ottawa B. E. Conway Case Western Reserve University Ernest Yeager Texas A & M University Ralph E. White Preface to Volume 4 The science of degradation of materials involves a vast area of science and technology, the economic importance of which rivals that of any other clearly defined area affecting the standard of life. The basis of the corrosion process is the electrochemical charge-transfer reaction, and the center of the subject of the degradation of materials is electrochemical material science.