Recent advances in nanomaterial-based solid-state hydrogen storage

The hydrogen economy is a system that is proposed as a long-term solution for a secure energy future. Hydrogen production, storage, distribution, and utilization make up the fundamental elements of an envisaged hydrogen economy system. These elements have been the subject of intense research for decades; however, the development of a viable safe and efficient strategy for the storage of hydrogen remains the most challenging. Solid-state hydrogen storage research has expanded significantly, with the potential to fulfill the targets of the United States Department of Energy. This review highlights recent advances in the nanomaterial-based solid-state hydrogen storage. In addition, characterization techniques, including gravimetric and volumetric techniques, as well as electrochemical methods are discussed. Moreover, several promising approaches and an outlook for the enhancement of hydrogen storage are addressed.