Fig. 1: Schematic diagram of LOHC-mediated hydrogen energy whole industry chain.

Surplus energy from renewable sources (such as solar or wind) can be produced by electrolyzing water. The hydrogen produced can be stored by LOHCs, a liquid in which hydrogenation and dehydrogenation can be reversible. In the dehydrogenation stage, hydrogen is the only product and the carrier liquid returns to its original state to be hydrogenated again. The hydrogen can be finally used in hydrogen refueling stations, batteries, and industrial constructions.