Fig. 1: The principal concept of chemical hydrogen storage considering energy density and chemical hazards of hydrogen carriers.
From: Development of a practical formate/bicarbonate energy system
A Green hydrogen pathway from production to utilization. Excess energy from renewable sources can be used to electrolyze water. The hydrogen can then be chemically stored in so called hydrogen carriers (HC) and released using suitable catalysts. Finally, energy can be recovered via combustion or fuel cell5. B Overview of volumetric and gravimetric energy densities for various energy carriers30,31. C Chemical hazards of loaded HC compared to H2. [1] Hazardous symbols are listed for DBT.
