Thermodynamics study of hydrogen storage materials

The growing use of conventional energy such as fossil fuels results in problems degrading our environment. Hydrogen is frequently discussed as a clean energy in the future without pollution. However, efficient and safe storage of hydrogen constitute a key challenge and unresolved problem. One of the main options is solid-state storage technology. A successful solid-state reversible storage material should meet the requirements of high storage capacity, suitable thermodynamic properties, reversibility and fast adsorption and desorption kinetics. This feature article focuses mainly on the development of thermodynamic improvement of hydrogen storage materials in the past few years including the complex hydride, ammonia borane, and metal-organic frameworks.

► Chemical modification is an effective way to improve the thermodynamics.
► Nanodispersion can improve the thermodynamics of chemical storage system.
► Hybridization is an practicable strategy to improve the thermodynamics.
► Nanoconfinement is feasible to improve thermodynamics of chemical storage system.
► MOFs materials possess suitable interaction with H2 molecule should be investigated.