Download or read book Zinc Electrode Kinetics Research written by T. P. Dirkse and published by . This book was released on 1970 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt: Time-to-passivation studies have been made on the zinc electrode in a range of KOH solutions. The time range was milliseconds and seconds. Attempts to interpret these results in terms of the rate at which the charge transfer product dissolves in the electrolyte encounter theoretical difficulties. Even at low times-to-passivation, the electrode process appears to be under diffusion control indicating that the rate of dissolution of the charge transfer product is not a limiting factor. Limiting diffusion currents have been measured in 1 to 13.4 M KOH and over a temperature range of -33 to 44C. The diffusion coefficients of the zinate ion have been measured polarographically in 1 to 10 M KOH and over a temperature range of -30 to 45C. (Author).
Download or read book Kinetic Study of the Zinc Electrode by Modified Pulse Techniques and Concentration Gradients written by Paul L. Howard and published by . This book was released on 1968 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: The method of studying the zinc electrode with zinc reference electrodes at top and bottom of the electrode has given much insight to the differences in reaction products and rates taking place over the surface. It appears that the concentration gradient is developed in the surface layer and this is where the problem of eroding away the top of the electrode must be attacked. The products formed at the zinc surface appear to be zinc hydrated complexes of the type Zn(H2O)x(OH)y where (x)may 1 to 6 and(y) may be 1 to 5. As an additional check on the reaction products formed electrochemically a polarographic study, differential thermal analysis and a method of checking the double layer capacitance was carried out. (Author).
Download or read book Electrode Kinetics Reactions written by R.G. Compton and published by Elsevier. This book was released on 1987-12-01 with total page 383 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volumes 26 and 27 are both concerned with reactions occurring at electrodes arising through the passage of current. They provide an introduction to the study of electrode kinetics. The basic ideas and experimental methodology are presented in Volume 26, whilst Volume 27 deals with reactions at particular types of electrodes. Chapter 1 of the present volume deals with redox reactions at metal electrodes, Chapter 2 with semiconducting electrodes and Chapter 3 with reactions at metal oxide electrodes. Both theoretical aspects and experimental results are covered.
Download or read book An Inventory of Energy Research written by Oak Ridge National Laboratory and published by . This book was released on 1972 with total page 1136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Battery Zinc Electrode Kinetics Investigation written by T. P. Dirkse and published by . This book was released on 1971 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt: Batteries using a zinc anode and an alkaline electrolyte offer much promise in terms of desirable energy density factors. However, sometimes when the electrode is charged, the zinc often deposits in the form of dendrites which may form metallic bridges between plates and lead to internal shorting of the cell. In order to gain an understanding of the kinetics of this problem, the exchange current densities of the zinc electrode in KOH solutions were measured over a temperature range of -33 to +55C in 1 to 14 molar KOH. Galvanostatic, double impulse, and potentiostatic methods were used. A current inversion appears to be related to the concentration of unbound water in the electrolyte. This matter is discussed in connection with measurements made in solutions of controlled ionic strength.
Download or read book An Inventory of Energy Research Prepared for the Task Force on Energy of the Subcommittee on Science Research and Development by Oak Ridge National Laboratory with the Support of the National Science Foundation written by United States. Congress. House Science and Astronautics and published by . This book was released on 1972 with total page 1772 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electrode Kinetics Principles and Methodology written by C.H. Bamford and published by Elsevier. This book was released on 1986-08-01 with total page 469 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volumes 26 and 27 are both concerned with reactions occurring at electrodes arising through the passage of current. They provide a comprehensive review of the study of electrode kinetics. The basic ideas and experimental methodology are presented in Volume 26 whilst Volume 27 deals with reactions at particular types of electrodes.Chapter 1 serves as an introduction to both volumes and is a survey of the fundamental principles of electrode kinetics. Chapter 2 deals with mass transport - how material gets to and from an electrode. Chapter 3 provides a review of linear sweep and cyclic voltammetry which constitutes an extensively used experimental technique in the field. Chapter 4 discusses a.c. and pulse methods which are a rich source of electrochemical information. Finally, chapter 5 discusses the use of electrodes in which there is forced convection, the so-called ``hydrodynamic electrodes''.
Download or read book Inventory of Current Energy Research and Development written by Oak Ridge National Laboratory and published by . This book was released on 1974 with total page 2864 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electrode Kinetics for Chemists Chemical Engineers and Materials Scientists written by Eliezer Gileadi and published by Capstone. This book was released on 1993 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt: Offering a thorough explanation of electrode kinetics, this textbook emphasizes physical phenomena - rather than mathematical formalism - and elucidates the underlying principles of the different experimental techniques. Assuming an elementary knowledge of thermodynamics and chemical kinetics and minimal mathematical skills, coverage explores the arguments of two primary schools of thought: electrode kinetics and interfacial electrochemistry viewed as a branch of physical chemistry and from the perspective of analytical chemistry.
Download or read book Corrosion and Electrochemistry of Zinc written by Xiaoge Gregory Zhang and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 481 pages. Available in PDF, EPUB and Kindle. Book excerpt: Humankind's use of zinc stretches back to antiquity, and it was a component in some of the earliest known alloy systems. Even though metallic zinc was not "discovered" in Europe until 1746 (by Marggral), zinc ores were used for making brass in biblical times, and an 87% zinc alloy was found in prehistoric ruins in Transylvania. Also, zinc (the metal) was produced in quantity in India as far back as the thirteenth century, well before it was recognized as being a separate element. The uses of zinc are manifold, ranging from galvanizing to die castings to electronics. It is a preferred anode material in high-energy-density batteries (e.g., Ni/Zn, Ag/Zn, ZnJair), so that its electrochemistry, particularly in alkaline media, has been extensively explored. In the passive state, zinc is photoelectrochemically active, with the passive film displaying n-type characteristics. For the same reason that zinc is considered to be an excellent battery anode, it has found extensive use as a sacrificial anode for the protection of ships and pipelines from corrosion. Indeed, aside from zinc's well-known attributes as an alloying element, its widespread use is principally due to its electrochemical properties, which include a well-placed position in the galvanic series for protecting iron and steel in natural aqueous environments and its reversible dissolution behavior in alkaline solutions.
Download or read book The Zinc Bromine Flow Battery written by Gobinath Pillai Rajarathnam and published by Springer. This book was released on 2016-01-11 with total page 113 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a detailed technical overview of short- and long-term materials and design challenges to zinc/bromine flow battery advancement, the need for energy storage in the electrical grid and how these may be met with the Zn/Br system. Practical interdisciplinary pathways forward are identified via cross-comparison and comprehensive review of significant findings from more than 300 published works, with clear in-depth explanations spanning initial RFB development to state-of-the-art research in related systems. Promising strategies described include the use of modern electrochemical techniques to study and optimize physical processes occurring within the system during operation, improving zinc electroplating quality during the charge phase through the strategic use of organic additives, as well as identifying suitable catalysts to optimize the bromine/bromide redox couple. The primary focus is on research and development of novel materials in the areas of electrolyte formulation and multifunctional “smart” electrode surfaces to achieve a higher degree of control over processes at the electrode–electrolyte interface. The strategies suggested in this book are also highly adaptable for use in other similar flow battery systems, while the unique cross-comparative approach makes it a useful reference and source of new ideas for both new and established researchers in the field of energy storage and battery technology.
Download or read book Analysis of Reaction and Transport Processes in Zinc Air Batteries written by Daniel Schröder and published by Springer. This book was released on 2016-01-22 with total page 259 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains a novel combination of experimental and model-based investigations, elucidating the complex processes inside zinc air batteries. The work presented helps to answer which battery composition and which air-composition should be adjusted to maintain stable and efficient charge/discharge cycling. In detail, electrochemical investigations and X-ray transmission tomography are applied on button cell zinc air batteries and in-house set-ups. Moreover, model-based investigations of the battery anode and the impact of relative humidity, active operation, carbon dioxide and oxygen on zinc air battery operation are presented. The techniques used in this work complement each other well and yield an unprecedented understanding of zinc air batteries. The methods applied are adaptable and can potentially be applied to gain further understanding of other metal air batteries.
Download or read book Research and Development in Non Mechanical Electrical Power Sources written by D. H. Collins and published by Elsevier. This book was released on 2013-10-22 with total page 632 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research and Development in Non-Mechanical Electrical Power Sources contains the proceedings of the 6th International Power Sources Symposium held in Brighton, UK, in September 1968. The papers explore research and development in non-mechanical sources of electric power such as lead-acid batteries, nickel-cadmium batteries, and solid state batteries. This book is comprised of 38 chapters and opens with a discussion on the charge acceptance of positive and negative electrodes in lead-acid cells. The following chapters deal with the effect of temperature and current density on the utilization of lead and lead oxide electrodes; anomalies of the negative plate in the lead-acid battery; curing of lead-acid battery plates; and specific properties of small closed lead accumulators using an immobilized electrolyte. Water-activated dry-charged lead-acid batteries, coated nickel electrodes, and nickel-cadmium batteries are also described. The final chapter is devoted to the methods of making GeSi alloys, their properties, and their use in thermoelectric generators. This monograph will be a valuable resource for electrical engineers.
Download or read book Proceedings of the Symposium on Electrode Materials and Processes for Energy Conversion and Storage IV written by James McBreen and published by The Electrochemical Society. This book was released on 1997 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book U S Government Research Reports written by and published by . This book was released on 1962 with total page 1170 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1987 with total page 1126 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Download or read book Kinetics of Metal metalion Electrodes written by Tor Hurlen and published by . This book was released on 1962 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:
