Catalytic Hydrogen Storage Systems Based on Hydrogenation and Dehydrogenation Reactions

Systems for the production, storage, and accumulation of hydrogen are an important line in the development of fundamental and applied aspects of alternative energy. Liquid organic hydrogen carriers (LOHCs), polycyclic forms of the corresponding aromatic compounds, are an effective way of hydrogen storage and release with contents of up to 7.3% by mass. The authors compare LOHCs as potential substrates for hydrogen storage and release systems based on catalytic hydrogenation and dehydrogenation reactions, inclusively, with cyclohexane, methylcyclohexane, decalin, perhydroterphenyl, bicyclohexyl, perhydrodibenzyltoluene, and perhydroethylcarbazole. Some data on the activity and selectivity of Pt-containing dehydrogenation catalysts are presented for each of the perhydrogenated substrates.