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Electrochemical Processes in Fuel Cells

BuchKartoniert, Paperback
276 Seiten
Englisch
Springererschienen am08.03.2012Softcover reprint of the original 1st ed. 1969
The necessity for a better understanding of the basic processes that determine the operation of fuel cells became evident during the devel­ opment of practical units in the last three decades.mehr

Produkt

KlappentextThe necessity for a better understanding of the basic processes that determine the operation of fuel cells became evident during the devel­ opment of practical units in the last three decades.
Details
ISBN/GTIN978-3-642-46157-6
ProduktartBuch
EinbandartKartoniert, Paperback
Verlag
Erscheinungsjahr2012
Erscheinungsdatum08.03.2012
AuflageSoftcover reprint of the original 1st ed. 1969
ReiheAnorganische und allgemeine Chemie in Einzeldarstellungen
Seiten276 Seiten
SpracheEnglisch
Gewicht445 g
IllustrationenXII, 276 p.
Artikel-Nr.18234416

Inhalt/Kritik

Inhaltsverzeichnis
I. Introduction.- 1. Definition and Description of a Fuel Cell.- 2. Classification of Fuel Cells.- 3. Historical Development.- References.- II. General Aspects.- 1. Thermodynamic Considerations and Definitions.- 2. Efficiency of Galvanic Cells.- 3. Basic Requirements for a Practical Fuel Cell.- 4. Electrolytes.- References.- III. Mass Transport Processes.- 1. Concept of the Nernst Diffusion Layer.- 2. Convective Diffusion.- 3. Migration and Convective Diffusion.- References.- IV. Kinetics of Electrode Reactions on Homogeneous Surfaces and Influence of Electrode Material.- 1. Single Step Reaction.- 2. Two Step Reaction with Adsorbed Intermediate.- 3. Successive Electrode Reactions with One Rate-Determining Step.- 4. Some Features of Mechanisms Involving the Simultaneous Formation of Different Products.- 5. Correlation between Hydrogen Overvoltage and Free Energy of Hydrogen Adsorption.- References.- V. Electrode Reactions on Heterogeneous Surfaces.- 1. Structure and Composition of Surfaces of Solids.- 2. Current Distribution on Heterogeneous Surfaces.- 3. Approximate Kinetic Expressions for Electrocatalytic Reactions on Heterogeneous Surfaces.- References.- VI. Characterization of the Surface of Platinium Metals and Platinum Metal Alloys by Hydrogen Adsorption and Comparison of the Results with Other Techniques.- 1. Electrochemical Determination of Isotherms of Hydrogen Adsorption.- 2. Heat of Hydrogen Adsorption as a Function of Coverage.- 3. Langmuir Approximation of the Isotherms of Hydrogen Adsorption.- 4. Influence of Surface Structure on Hydrogen Adsorption at Platinum.- 5. Determination of the Electrochemically Active Surface.- 6. Hydrogen Adsorption in the Presence of Chemisorbed Carbonaceous Species.- 7. Effect of Pretreatment on the Reactivity of Platinum MetalElectrodes.- 8. Hydrogen Adsorption on Binary Platinum Metal Alloys.- References.- VII. Anodic Oxidation of Molecular Hydrogen at Low Temperatures.- 1. Mechanism of the H2 Oxidation on Noble Metals and Noble Metal Alloys.- 2. Mechanism of the H2 Oxidation on Different Types of Nickel Electrodes in Alkaline Electrolytes.- 3. Mechanism of the H2 Oxidation on Platinum in Contact with an Ion-Exchange Membrane.- References.- VIII. Oxygen Layers on Different Materials and Inhibition of Fuel Oxidations.- 1. Formation and Reduction of Oxygen Layers on Platinum Metals and Some Alloys.- 2. Nature of the Oxygen Layers on Platinum Metals.- 3. Oxygen Layers on Nickel in Alkaline Electrolytes.- 4. Oxygen Layers on Silver in Alkaline Electrolytes.- 5. Oxygen Layers on Carbon.- 6. Inhibition of Fuel Oxidations by Oxygen Layers.- References.- IX. Adsorption of Carbonaceous Species on Platinum Metals.- 1. Non-Equilibrium Aspects of the Chemisorption of Strongly Bonded Carbonaceous Species.- 2. Adsorption of Weakly Bonded Carbonaceous Species.- 3. Rate of Formation of Strongly Bonded Species at Constant Potential.- 4. Coverage from Anodic Pulses.- 5. Coverage from Hydrogen Deposition.- 6. Radiometric Determination of the Coverage.- 7. Coverage and Capacitance of Electrode Impedance.- 8. Determination of the Number of Electrons in the Oxidation of Chemisorbed Species.- 9. Effect of pH and Anions on Coverage.- 10. Nature of Chemisorbed Species.- 11. Oxidation Mechanism of Chemisorbed Carbonaceous Species.- References.- X. Anodic Oxidation of Fuels at Low Temperatures.- 1. Classification of the Oxidation Mechanisms.- 2. Oxidation of Carbon Monoxide.- 3. Oxidation of Mixtures of Hydrogen and Carbon Monoxide.- 4. Oxidation of Formic Acid.- 5. Methanol Oxidation.- 6. Oxidation of Higher Alcohols and Aldehydes.- 7. Oxidation of Hydrocarbons.- 8. Oxidation of Hydrazine.- 9. Oscillatory Phenomena on Solid Electrodes.- References.- XI. The Oxygen Electrode at Low Temperatures.- 1. Distinction of Reduction Mechanisms.- 2. The Role of Hydrogen Peroxide in the Oxygen Reduction on Platinum Metals.- 3. Mechanism of the O2 Reduction on Active Platinum Metals in the Absence of the Oxygen Layer.- 4. The O2 Reduction on Platinum Metals in the Presence of Oxygen Layers.- 5. The O2 Reduction on Silver, Nickel, and Silver Alloys.- 6. The O2 Reduction on Carbon.- 7. The O2 Reduction on Intermetallic Compounds.- 8. The Reversible Oxygen Electrode.- References.- XII. Corrosion of Electrodes at Low Temperatures.- 1. Predictions from Potential-pH Diagrams.- 2. Dissolution of Platinum Metals.- 3. Dissolution of Nickel, Silver, and Carbon in Alkaline Electrolytes.- References.- XIII. Processes in Fuel Cells with Molten Carbonate Electrolytes.- 1. General Considerations.- 2. Properties of Molten Carbonate Electrolytes.- 3. Thermal Stability of Molten Carbonates and Corrosion of Metals.- 4. Formation of Carbon Deposits.- 5. Processes at the Anode.- 6. The Oxygen Electrode in Molten Carbonates.- References.- XIV. Processes in Fuel Cells with Solid Electrolytes.- 1. General Considerations.- 2. Properties of Solid Electrolytes.- 3. Current - Voltage Characteristics.- References.- XV. Properties of Porous Electrodes.- 1. Porosity.- 2. Determination of Different Surface Areas.- 3. Experimental Current-Potential Curves for Porous Electrodes.- 4. Structure and Performance.- References.- XVI. Models of Porous Electrodes.- 1. Potential Distribution in the Flooded Single Pore without Influence of Mass Transport Processes.- 2. Concentration Distribution in the Flooded Single Pore under theInfluence of Diffusion.- 3. Potential Distribution in the Flooded Single Pore in the Presence of Mass Transport Processes.- 4. Continuum Models of Flooded Porous Electrodes.- 5. The Thin Film Model of the Gas-Diffusion Electrode.- 6. The Meniscus Model of the Gas-Diffusion Electrode.- 7. Simultaneous Consideration of Thin Film and Meniscus.- 8. Model for the Two-Layer Electrode.- References.mehr