Commonly utilized methods for hydrogen storage include high-pressure gaseous storage, liquefied storage, metal alloy storage, organic liquid hydride storage, and carbon material storage. Among these, carbon materials encompass super activated carbon, nano carbon fibers, and carbon nanotubes. Super activated carbon has garnered significant attention due to its abundant raw materials, large specific surface area, modified surface chemical properties, substantial hydrogen storage capacity, rapid desorption rate, extended cycle life, and facile industrialization. Scholars have employed CO2 activation templates to fabricate porous carbon and obtained super activated carbon materials featuring micropores ranging from 0.7 to 1.3 nm, mesopores ranging from 2 to 4 nm,a specific surface area of 2829 m2 · g-1,and a pore volume of 2.34 cm3 · g-1.At room temperature (298K)and medium pressure (8 MPa), the hydrogen adsorption capacity can reach up to 0.95%. Since the onset of the21st century,porous solid materials akin tom etal organic frameworks have charted new pathways for hydrogen absorption andstorage.Scholars have introduced activatedcarbon into metalorganic frameworkmaterials under mild conditionsand synthesizedactivatedcarbonmetalorganicframework composites with highspecificsurfacearea.Underconditions
of77Kand10MPa,theadsorptioncapacityforhydrogenhasincreasedfrom8.2%to13.5%.Controllingthepreparationprocessofsuperactivatedcarbon to obtain suitable specific surface area, pore size and distribution for hydrogen storage, and then conducting surface modification to increase hydrogen storage capacity at room temperature and medium pressure is the key to the research and application of super activated carbon hydrogen storage.