Hydrogen Production from Liquid Hydrogen Carriers

Considering the ever-increasing carbon emission and its severe consequences on the global temperature, it is essential to explore sustainable energy resources with minimal or zero-carbon footprint. In this regard, hydrogen has emerged as a promising sustainable candidate to meet the global energy demand, primarily because it has high energy density and produces only water/water vapor upon usage in the fuel cell or combustion. However, sustainable production, safe storage, and transportation of hydrogen gas are challenging. Therefore, several hydrogen storage materials/carriers have been explored to store high gravimetric and volumetric hydrogen content and release and store hydrogen gas on demand. In this regard, being liquid at room temperature, the liquid hydrogen carriers offer the additional advantage of easy and safe storage, transportation, and dispensing. Further, these liquid hydrogen carriers contain high H2 content, which can be released on demand. Moreover, most liquid hydrogen carriers can also be regenerated from CO2 and biomass waste. Therefore, it is worth highlighting the potential of these liquid hydrogen carriers as promising candidates for hydrogen storage and production in a sustainable way. Learning objectives: