Hydrogen Production, Storage, and Combustion for Energy Systems
This research community focuses on the technical development of hydrogen as an energy carrier, covering its production via electrolysis, storage methods, and use in fuel cells and internal combustion engines.
The work centers on green hydrogen production through water electrolysis, with significant attention to alkaline and proton-exchange membrane technologies. A substantial portion of the literature addresses hydrogen storage, including liquid hydrogen and solid-state systems, as well as its integration into hybrid energy systems. The community also extensively studies combustion characteristics and emission profiles in diesel engines and gas turbines using hydrogen or ammonia-diesel blends. Life cycle assessments and techno-economic analyses are recurring methodological frameworks used to evaluate the environmental and economic viability of these hydrogen-based energy systems.
The largest share of the community's output is found in hydrogen research, representing 16.5% of all tracked hydrogen research, and 18,657 papers here. Nitrogen and carbon research also contribute, with 2,397 and 1,229 papers respectively.
The community comprises 45,476 papers, published primarily in the International Journal of Hydrogen Energy, Fuel, and Energy.
Recent work continues to focus on the integration of hydrogen into multi-energy systems, including portfolio optimization for storage and the assessment of liquid organic hydrogen carriers for transport. Studies also examine the role of hydrogen in decarbonizing industrial applications and smart cities, alongside comparative reviews of national hydrogen strategies and the global hydrogen budget.