Preface xiii Acknowledgments xv About the Authors xvii Disclosure of AI Use xix 1 The Hydrogen Paradigm - Past, Present, and Future 1 1.1 Introduction to Hydrogen as an Energy Carrier 1 1.1.1 Definition and Fundamental Properties of Hydrogen 1 1.1.2 Why Hydrogen Is Considered a Clean Energy Carrier 3 1.1.3 Role of Hydrogen in Decarbonization Efforts 6 1.
2 Evolution of Hydrogen as an Energy Carrier 7 1.2.1 Early Uses of Hydrogen 7 1.2.2 Development of Hydrogen Production Technologies 8 1.2.3 The Rise of Fuel Cells and Space Applications 10 1.2.
4 Hydrogen''s Transition to an Energy Vector in the Twenty-first Century 11 1.3 Why Hydrogen? Comparison with Fossil Fuels and Renewables 13 1.3.1 Hydrogen vs. Fossil Fuels 13 1.3.2 Hydrogen vs. Batteries 13 1.
3.3 Hydrogen''s Role in the Renewable Energy Ecosystem 16 1.4 Current Global Hydrogen Economy and Future Roadmaps 17 1.4.1 Global Hydrogen Production and Consumption 17 1.4.2 Investments and Policies Driving Hydrogen Adoption 19 1.4.
3 Key Players in Hydrogen Development 21 1.4.4 Future Hydrogen Economy Trends and Projections 22 1.5 Key Challenges in Hydrogen Adoption and Infrastructure Development 24 1.5.1 Scalability and Cost Barriers 24 1.5.2 Infrastructure Gaps 25 1.
5.3 Technological Hurdles 25 1.5.4 Public Perception and Market Readiness 26 1.5.5 Environmental and Safety Concerns 26 References 29 2 Innovative Hydrogen Production Technologies 37 2.1 Introduction to Hydrogen Production Technologies 37 2.2 Electrolysis: Advances in PEM, Alkaline, and Solid Oxide Electrolysis 39 2.
2.1 Introduction to Electrolysis 39 2.2.2 PEM Electrolysis 40 2.2.3 Alkaline Electrolysis 43 2.2.3.
1 Recent Developments in Alkaline Electrolysis 44 2.2.4 Solid Oxide Electrolysis (SOEC) 45 2.2.4.1 Recent Developments and Future Outlook 47 2.2.5 Comparison of Electrolysis Methods 47 2.
3 Photocatalysis and Photoelectrochemical Water Splitting: Harnessing Solar Energy for Green Hydrogen 48 2.3.1 Introduction to Photocatalysis and PEC 48 2.3.2 Photocatalysis: Harnessing Sunlight for Water Splitting 49 2.3.3 PEC Water Splitting 51 2.3.
4 Challenges in and Potential Strategies for Solar Hydrogen Production 53 2.3.5 Future Directions in Photocatalysis and PEC 53 2.4 Thermochemical and Hybrid Processes: Sulfur-iodine Cycle, Metal Oxide Cycles 55 2.4.1 Introduction to Thermochemical Hydrogen Production 55 2.4.2 SI Cycle 56 2.
4.3 Metal Oxide Cycles 58 2.4.4 Hybrid Thermochemical Processes 59 2.5 Biological Hydrogen Production: Algae, Bacteria, and Enzymatic Hydrogen Production 61 2.5.1 Introduction to Biological Hydrogen Production 61 2.5.
2 Algae-based Hydrogen Production 62 2.5.3 Bacterial Hydrogen Production 63 2.5.4 Enzymatic Hydrogen Production 64 2.5.5 Comparison of Biological Hydrogen Production Methods 66 2.6 Comparative Analysis of Hydrogen Production Methods 68 2.
6.1 Cost Analysis of Hydrogen Production Technologies 68 2.6.2 Efficiency and Scalability of Hydrogen Production 69 2.6.3 Scalability of Biological Hydrogen Production and Its Limitations 70 2.6.4 Environmental Impact and Sustainability 71 2.
6.5 Water Usage and Energy Requirements for Different Hydrogen Production Technologies 71 2.6.6 Carbon Footprint and Sustainability of Large-scale Hydrogen Production 72 2.7 Summary and Future Directions 73 References 74 3 Advanced Materials for Hydrogen Production 83 3.1 Introduction to Advanced Materials for Hydrogen Production 83 3.1.1 Importance of Material Science in Hydrogen Production 83 3.
1.2 Key Challenges in Material Development 86 3.2 High-performance Catalysts for Electrolysis 87 3.2.1 Role of Catalysts in HER and OER 87 3.2.1.1 Mechanisms of HER and OER in Electrolysis 88 3.
2.2 Emerging Catalysts for Electrolysis 91 3.3 Nanomaterials and Composites for Enhanced Hydrogen Production 93 3.3.1 Role of Nanomaterials in Hydrogen Evolution 93 3.3.2 Advanced Composites for Electrolysis and Photocatalysis 96 3.4 Durability and Degradation Challenges in Catalyst Materials 98 3.
4.1 Factors Affecting Catalyst Durability 98 3.4.2 Strategies to Improve Catalyst Stability 99 3.4.2.1 Protective Coatings and Support Materials to Prevent Degradation 99 3.4.
2.2 Alloying Strategies and Nanostructuring to Enhance Durability 100 3.4.2.3 Self-healing and Regenerable Catalysts for Prolonged Efficiency 102 3.5 Cost-effective and Non-precious Metal Alternatives 102 3.5.1 Challenges with Precious Metal Catalysts 102 3.
5.2 Development of Non-precious Metal Catalysts 103 3.6 Role of AI and Machine Learning in Material Discovery 106 3.6.1 How AI Accelerates Material Discovery 106 3.6.2 Examples of AI-optimized Hydrogen Production Materials 107 3.7 Summary and Future Directions 108 References 110 4 Hydrogen Storage - Challenges and Breakthroughs 119 4.
1 Introduction to Hydrogen Storage 119 4.2 Physical Hydrogen Storage 122 4.2.1 Compressed Gas Storage 122 4.2.2 Cryogenic Liquid Hydrogen Storage 124 4.3 Chemical Hydrogen Storage 128 4.3.
1 Ammonia as a Hydrogen Carrier 128 4.3.2 LOHCs 130 4.4 Solid-state Hydrogen Storage 132 4.4.1 Metal Hydrides for Hydrogen Storage 132 4.4.2 MOFs and Carbon-based Materials 133 4.
5 Safety Considerations and Risk Assessment in Hydrogen Storage 135 4.5.1 Safety Protocols in Hydrogen Storage Systems 135 4.5.1.1 Overview of Storage Safety Requirements for Different Hydrogen Carriers 136 4.5.1.
2 International Regulations and Standards for Hydrogen Handling 136 4.5.1.3 Best Practices for Safe Storage, Transportation, and Refueling Infrastructure 137 4.5.2 Leakage Risks and Explosion Hazards 138 4.5.3 Mitigation Strategies for Hydrogen Storage Hazards 139 4.
6 Future Directions in Hydrogen Storage 141 4.6.1 High-density Storage Solutions for Transportation and Stationary Applications 141 4.6.2 Integration of Hydrogen Storage with Fuel Cells and Renewable Energy Systems 142 4.6.3 Emerging Research in Hybrid Hydrogen Storage Combining Physical, Chemical, and Solid-state Approaches 142 4.6.
4 Economic and Policy Considerations for Large-scale Hydrogen Storage Deployment 143 4.7 Summary and Future Perspectives 144 References 145 5 Hydrogen Fuel Cells - Types and Mechanisms 155 5.1 Overview of Hydrogen Fuel Cells 155 5.1.1 Basic Operating Principles of Fuel Cells 157 5.1.2 Advantages of Hydrogen Fuel Cells 158 5.2 Types of Hydrogen Fuel Cells 159 5.
2.1 PEMFCs 160 5.2.2 SOFCs 162 5.2.3 AFCs 164 5.2.4 PAFCs 166 5.
2.5 MCFCs 168 5.2.6 DMFCs 169 5.3 Mechanisms of Hydrogen Fuel Cells 171 5.3.1 Electrochemical Reactions in Hydrogen Fuel Cells 172 5.3.
2 Role of Catalysts in Fuel Cells 172 5.3.3 Fuel Cell Efficiency and Performance 174 5.4 Fuel Cell Components and Design 177 5.4.1 Mea 178 5.4.2 Electrodes and Catalysts 178 5.
4.3 Bipolar Plates and Current Collectors 179 5.4.4 Fuel and Oxidant Supply Systems 179 5.5 Fuel Cell Durability and Lifetime 180 5.5.1 Factors Affecting Fuel Cell Lifespan 180 5.5.
2 Strategies for Improving Durability 182 5.5.3 Long-term Performance and Cost Reduction 182 5.6 Applications of Hydrogen Fuel Cells 183 5.6.1 Fuel Cells in Transportation 184 5.6.2 Fuel Cells in Stationary Power Generation 184 5.
6.3 Fuel Cells for Backup Power and Remote Applications 185 5.6.4 Fuel Cells in Portable Devices and Consumer Electronics 185 5.7 Recent Advances and Research in Fuel Cell Technology 186 5.7.1 Next-generation Fuel Cell Designs 186 5.7.
2 Innovations in Catalyst Materials 187 5.7.3 Fuel Cell Integration with Renewable Energy Systems 187 5.8 Environmental Impact and Sustainability of Hydrogen Fuel Cells 188 5.8.1 Lifecycle Emissions and Sustainability Considerations 188 5.8.2 Hydrogen Fuel Cells and Circular Economy 189 5.
8.3 Environmental Benefits Compared to Other Technologies 190 5.9 Challenges and Future Prospects 190 5.10 Conclusion 193 References 193 6 Hydrogen-powered Transportation and Industrial Applications 203 6.1 Introduction 203 6.2 Hydrogen in Transportation Sector 205 6.2.1 Hydrogen FCEVs 206 6.
2.2 Hydrogen for Heavy-duty Transport 208 6.3 Hydrogen Refueling Infrastructure: Current Progress and Challenges 210 6.4 Hydrogen in Industrial Applications 213 6.4.1 Hydrogen in Steel and Iron Industry 214 6.4.2 Hydrogen in Refining and Chemical Industries 216 6.
4.3 Hydrogen in Cement Industry 218 6.5 Key Technological and Economic Drivers for Hydrogen in Transportation and Industry 220 6.6 Environmental Impacts and Sustainability of Hydrogen in Transportation and Industry 222 6.7 Case Studies: Global Adoption of Hydrogen in Transportation and Industry 225 6.7.1 Japan''s Hydrogen-powered Transport Systems 225 6.7.
2 Germany''s Hydrogen in Industrial Applications 226 6.7.3 United States: Advancements in Hydrogen for Heavy-duty Transport 226 6.7.4 Australia''s Hydrogen Industry and Export Potential 227 6.8 The Future Outlook for Hydrogen in Trans.