A step forward: nanostructures for hydrogen storage

Hydrogen storage methods represent one of the main bottlenecks to achieving a global hydrogen-based economy, particularly for light-duty vehicles. Several classes of materials have been investigated to address current demands. However, a fully satisfactory solution has yet to be achieved. In this context, nanostructures have emerged as promising candidates, offering new possibilities for attaining the performance required for efficient hydrogen storage. This review discusses the advantages and limitations of the main hydrogen storage materials, with special emphasis on nanostructured systems. It also addresses the main characterization techniques used for hydrogen storage materials, as well as future perspectives for the field.