The world's output of irretrievable greenhouse gases as well as hazardous waste resulting from current methods of energy generation needs to be significantly reduced in the interest of avoiding environmental, meteorological and economic disasters. One widely acknowledged strategy is the use of hydrogen as a carbon-free source of energy instead of burning fossil fuels. This monograph fills the gap for concise but comprehensive literature on this interdisciplinary topic, involving as it does chemical, physical, biological and engineering challenges. It provides broad coverage of the most important fields of modern hydrogen technology: hydrogen properties, production, storage, conversion to power, and applications in materials science. In so doing, the book covers all the pertinent materials classes: metal hydrides, inorganic porous solids, organic materials, and nanotubes. The authors present the entire view from fundamental research to viable devices and systems, including the latest scientific results and discoveries, practical approaches to design and engineering, as well as functioning prototypes and advanced systems.