Cargando…
The chemistry of membranes used in fuel cells : degradation and stabilization /
Examines the important topic of fuel cell science by way of combining membrane design, chemical degradation mechanisms, and stabilization strategies This book describes the mechanism of membrane degradation and stabilization, as well as the search for stable membranes that can be used in alkaline fu...
| Clasificación: | Libro Electrónico |
|---|---|
| Otros Autores: | |
| Formato: | Electrónico eBook |
| Idioma: | Inglés |
| Publicado: |
Hoboken, New Jersey :
John Wiley & Sons, Inc.,
2018.
|
| Edición: | 1st. |
| Temas: | |
| Acceso en línea: | Texto completo |
| Sumario: | Examines the important topic of fuel cell science by way of combining membrane design, chemical degradation mechanisms, and stabilization strategies This book describes the mechanism of membrane degradation and stabilization, as well as the search for stable membranes that can be used in alkaline fuel cells. Arranged in ten chapters, the book presents detailed studies that can help readers understand the attack and degradation mechanisms of polymer membranes and mitigation strategies. Coverage starts from fundamentals and moves to different fuel cell membrane types and methods to profile and analyze them. The Chemistry of Membranes Used in Fuel Cells: Degradation and Stabilization features chapters on: Fuel Cell Fundamentals: The Evolution of Fuel Cells and their Components; Degradation Mechanism of Perfluorinated Membranes; Ranking the Stability of Perfluorinated Membranes Used in Fuel Cells to Attack by Hydroxyl Radicals; Stabilization Mechanism of Perfluorinated Membranes by Ce(III) and Mn(II); Hydrocarbon Proton Exchange Membranes; Stabilization of Perfluorinated Membranes Using Nanoparticle Additives; Degradation Mechanism in Aquivion Perfluorinated Membranes and Stabilization Strategies; Anion Exchange Membrane Fuel Cells: Synthesis and Stability; In-depth Profiling of Degradation Processes in Nafion Due to Pt Dissolution and Migration into the Membrane; and Quantum Mechanical Calculations of the Degradation Mechanism in Perfluorinated Membranes.-Brings together aspects of membrane design, chemical degradation mechanisms and stabilization strategies -Emphasizes chemistry of fuel cells, which is underemphasized in other books -Includes discussion of fuel cell performance and behavior, analytical profiling methods, and quantum mechanical calculations The Chemistry of Membranes Used in Fuel Cells is an ideal book for polymer scientists, chemists, chemical engineers, electrochemists, material scientists, energy and electrical engineers, and physicists. It is also important for grad students studying advanced polymers and applications. |
|---|---|
| Notas: | And Yu Seung Kim 8.1 Introduction 195 8.2 Chemical Degradation Mechanisms 196 8.2.1 Degradation of Cationic Groups 196 8.2.1.1 Alkyl Ammoniums 196 8.2.1.2 N?\Based Cyclic Cations 199 8.2.1.3 Other Cationic Groups 202 8.2.2 Degradation of Polymer Backbones 204 8.2.2.1 Polyolefins 205 8.2.2.2 Polyaromatics 205 8.2.2.3 Polyacrylates 207 8.2.2.4 Polybenzimidazoles 208 8.2.2.5 Perfluorinated Polymers 208 8.3 Synthetic Approaches 210 8.3.1 Polyolefins 210 8.3.1.1 Polyethylene and Polypropylene 211 8.3.1.2 Polystyrene 212 8.3.1.3 Others 215 8.3.2 Polyaromatics 217 8.3.2.1 Cationic?\Group?\Tethered Poly(arylene)s 217 8.3.2.2 Poly(arylene)?\Containing Cationic Polymer Backbones 219 8.3.2.3 Multication?\Tethered Poly(arylene)s 219 8.3.3 Other Polymers 221 8.3.3.1 Polybenzimidazoles 221 8.3.3.2 Polynorbornenes 223. Goddard III 10.1 Introduction 241 10.2 Computational Methods 244 10.3 Results and Discussion 244 10.3.1 Generation of Radicals 244 10.3.1.1 Hydroxyl Radicals 244 10.3.1.2 Hydrogen Radicals, H" 247 10.3.1.3 Hydroperoxyl Radicals, HOO" 249 10.3.2 Concentrated HO" Conditions versus Fuel Cell Conditions 249 10.3.3 Degradation under Concentrated HO" Conditions 249 10.3.3.1 R??CF2H Polymer Main Chain Defect Initiation 249 10.3.3.2 R??CF?TCF2 Polymer Main Chain Defect Initiation 250 10.3.3.3 R??COOH Polymer Main Chain Defect Initiation 250 10.3.3.4 Propagating Polymer Main Chain Degradation 250 10.3.3.5 Side?\Chain Degradation 252 10.3.4 Degradation under Fuel Cell Conditions with Fuel Crossover 256 10.3.4.1 Polymer Main Chain End?\Group Initiation 256 10.3.4.2 Propagating Polymer. |
| Descripción Física: | 1 online resource |
| ISBN: | 9781119196075 1119196078 9781119196068 111919606X 9781119196082 1119196086 |