1.40 - Binary and Complex Main-Group Hydrides for Hydrogen Storage

Abstract

The search for a viable alternative energy source to replace our dependence on fossil fuels has prompted considerable efforts toward the development of a hydrogen-based economy. However, the storage of hydrogen remains a serious drawback to its widespread application. In this regard, binary and complex metal hydrides represent highly attractive candidates as solid-state hydrogen-storage materials. These systems possess good gravimetric and volumetric storage capacities, essential features for any target material, but are generally plagued by high kinetic or thermodynamic barriers for their hydrogen-uptake or -release reactions. This chapter discusses the recent progress made toward improving the shortcomings of select binary and complex metal hydrides, with particular emphasis on their solid-state structures and hydrogen-release properties.