Hydrogen fuel

https://www.wikidata.org/wiki/Q11549077

Field Hierarchy

Parent
Physics 32.4M papers	Chemistry 29.1M papers	Engineering 24.7M papers	Quantum mechanics 13.4M papers
Organic chemistry 13.1M papers	Chemical engineering 3.2M papers	Hydrogen 406k papers	Fuel cells 57.6k papers
Current
Hydrogen fuel 15.2k papers
Child
Hydrogen economy 4,817 papers	Hydrogen vehicle 3,058 papers	Hydrogen technologies 2,053 papers	Regenerative fuel cell 636 papers
Unitized regenerative fuel cell 461 papers

Trends

Notes

History