“…However, both need to consume a significant amount of energy (e.g., 31–43 kJ/mol H 2 for compressing hydrogen to 800 bar, 28.4 kJ/mol H 2 for liquefied hydrogen) [ 27 ] and cause safety concerns [ 28 , 29 , 30 ]. Therefore, researchers are committed to developing new, more efficient and economical hydrogen storage technology, including metal hydride hydrogen storage [ 31 , 32 ], porous materials hydrogen storage [ 33 , 34 ], complex hydride hydrogen storage [ 35 , 36 ] and liquid organic hydrogen carrier hydrogen storage [ 37 , 38 , 39 ]. Liquid organic hydrogen carrier technology uses hydrogen-deficient carriers of liquid organics to store hydrogen through a catalytic hydrogenation reaction.…”