Materials for High-Temperature Fuel Cells. New Materials for Sustainable Energy and Development

  • ID: 2329489
  • Book
  • 392 Pages
  • John Wiley and Sons Ltd
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The world′s ever–growing demand for power has created an urgent need for new efficient and sustainable sources of energy and electricity. Today′s consumers of portable electronics also demand devices that not only deliver more power but are also environmentally friendly. Fuel cells are an important alternative energy source, with promise in military, commercial and industrial applications, for example power vehicles and portable devices.

A fuel cell is an electrochemical device that directly converts the chemical energy of a fuel into electrical energy. Fuel cells represent the most efficient energy conversion technologies to–date and are an integral part in the new and renewable energy chain (e.g., solar, wind and hydropower). Fuel cells can be classified as either high–temperature or lowtemperature, depending on their operating temperature, and have different materials requirements. This book is dedicated to the study of high temperature fuel cells. In hightemperature fuel cells, the electrolyte materials are ceramic or molten carbonate, while the electrode materials are ceramic or metal (but not precious metal). High operation temperature fuel cells allow internal reforming, promote rapid kinetics with non–precious materials and offer high flexibilities in fuel choice, and are potential and viable candidate to moderate the fast increase in power requirements and to minimize the impact of the

increased power consumption on the environment.

′Materials for High Temperature Fuel Cells′ is part of the series on Materials for Sustainable Energy and Development edited by Prof. Max Q. Lu. The series covers advances in materials science and innovation for renewable energy, clean use of fossil energy, and greenhouse gas mitigation and associated environmental technologies.
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PREFACE

ADVANCED ANODES FOR SOLID OXIDE FUEL CELLS

Introduction

Ni–YSZ Anode Overview

Insights from Real Ni–YSZ Microstructures

Mechanistic Understanding of Fuel Oxidation in Ni–Based Anodes

Poisoning of Ni–Based Anodes

Alternative Anode Materials for Direct Hydrocarbon Utilization

Infiltration as an Alternative Fabrication Method

Summary and Outlook

ADVANCED CATHODES FOR SOLID OXIDE FUEL CELLS

Introduction

Cathodes on Oxygen–Ion–Conducting Electrolytes

Cathodes on Proton–Conducting Electrolytes

Advanced Techniques in Cathode Fabrication

Summary

OXIDE ION–CONDUCTING MATERIALS FOR ELECTROLYTES

Introduction

Oxide Ion Conductivity in Metal Oxide

Electrolyte Efficiency

Strain Effects on Oxide Ion Conductivity

Degradation in Conductivity

Concluding Remarks

PROTON–CONDUCTING MATERIALS AS ELECTROLYTES FOR SOLID OXIDE FUEL CELLS

Introduction

The Principle of Proton–Conducting Oxides

Proton–Conducting Materials for Solid Oxide Fuel Cells

Solid Oxide Fuel Cells Based on Proton–Conducting Electrolytes

Electrode Materials and Anode Reactions for SOFCs Based on Proton–Conducting Electrolytes

Conclusion

METALLIC INTERCONNECT MATERIALS OF SOLID OXIDE FUEL CELLS

Introduction

Oxidation Behaviors of Candidate Alloys

Electrical Properties of Oxide Scale

Surface Modifications and Coatings

New Alloy Development

Summary

SEALANTS FOR PLANAR SOLID OXIDE FUEL CELLS

Introduction

Glass and Glass –

Ceramic Sealants

Mica

Metal Braze

Composite Sealants

Conclusion

DEGRADATION AND DURABILITY OF ELECTRODES OF SOLID OXIDE FUEL CELLS

Introduction

Anodes

Cathodes

Degradation of Solid Oxide Electrolysis Cells

Summary and Conclusions

MATERIALS AND PROCESSING FOR METAL–SUPPORTED SOLID OXIDE FUEL CELLS

Introduction

Cell Architectures

Substrate Materials and Challenges

Cell Fabrication and Challenges

Summary

MOLTEN CARBONATE FUEL CELLS

Introduction

Operating Principle

State–of–the–Art Components

General Needs

Status of MCFC Systems Implementation

INDEX

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San Ping Jiang
Yushan Yan
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