Considered as the ultimate solution for the energy and en-vironment crises,hydrogen energy plays a crucial role in the realization of worldwide carbon neutrality.There are three key issues for the practical utilization of hydrogen energy:high-capacity storage,safe transportation and reversible re-lease,among which hydrogen storage is the first step.For years,great efforts have been made.However,there is still a long way to go to achieve the target hydrogen storage ca-pacitance(~7.7 wt%)for the hydrogen energy to be viable and competitive.