Modern Aspects of Electrochemistry

herausgegeben von: B. E. Conway, J. O'M. Bockris, Ralph E. White

Verlag: Springer US

Buchreihe : Modern Aspects of Electrochemistry

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Über dieses Buch

Recognized experts present incisive analysis of both fundamental and applied problems in this continuation of a highly acclaimed series.
Topics discussed include: A thorough and mathematical treatment of periodic phenomena, with consideration of new theories about the transition between `order' and `chaos'; Impedance spectroscopy as applied to the study of kinetics and mechanisms of electrode processes; The use of stoichiometric numbers in mechanism analysis; The electro-osmotic dewatering of clays with important implications for the processing of industrial waste and geotechnical; stabilization; Magnetic effects in electrolytic processes and the electrolytic Hall effect; and The computer analysis and modeling of mass transfer and fluid flow. These authoritative studies will be invaluable for researchers in engineering, electrochemistry, analytical chemistry, materials science, physical chemistry, and corrosion science.

Inhaltsverzeichnis

Frontmatter

1. Principles of Temporal and Spatial Pattern Formation in Electrochemical Systems

Katharina Krischer

2. Electrochemical Impedance Spectroscopy and its Applications

Conclusion

Electrochemical impedance spectroscopy has become a mature and well-understood technique. It is now possible to acquire, validate, and quantitatively interpret the experimental impedances. This chapter has been addressed to understanding the fundamental processes of diffusion and faradaic reaction at electrodes. However, the most difficult problem in EIS is modeling the electrode processes, which is where most of the problems and errors arise. There is an almost infinite variety of different reactions and interfaces that can be studied (corrosion, coatings, conducting polymers, batteries and fuel cells, semiconductors, electrocatalytic reactions, chemical reactions coupled with faradaic processes, etc.) and the main effort is now being applied to understanding and analyzing these processes. These applications will be the subject of a second review in a forthcoming volume in this series.

Andrzej Lasia

3. Establishing the Link Between Multistep Electrochemical Reaction Mechanisms and Experimental Tafel Slopes

Mark C. Lefebvre

4. Electro-Osmotic Dewatering of Clays, Soils, and Suspensions

Ashok K. Vijh

5. The Effect of Magnetic Fields on Electrochemical Processes

Thomas Z. Fahidy

6. Analysis of Mass Transfer and Fluid Flow for Electrochemical Processes

Summary

Numerical analyses of fluid flow and mass transfer in electrochemical systems will become more common. It may be difficult, however, to utilize currently available commercial solvers for mass transfer, especially when concentration fields are coupled through an electrical field or through homogeneous chemical reactions. The large Schmidt numbers that are important in electrochemistry may also imply that mass-transfer calculations require much finer computational grids than fluid-flow simulation. Nevertheless, commercial fluid-flow solvers will often be adopted. Attention must be paid to experimental verification of the simulations.

The focus of this review has been on mass transfer in laminar, single-phase flows. Significant work is necessary for the rigorous analysis of current distribution in turbulent flows. Progress is also required for the analysis of current distribution in multiphase flows, especially in porous media relevant to fuel cell or battery applications.

J. Deliang Yang, Vijay Modi, Alan C. West

Backmatter

Titel: Modern Aspects of Electrochemistry
herausgegeben von: B. E. Conway
J. O'M. Bockris
Ralph E. White
Verlag: Springer US
Electronic ISBN: 978-0-306-46916-9
Print ISBN: 978-0-306-45964-1
DOI: https://doi.org/10.1007/b113771

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