Hydrogen fuel

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

Field Hierarchy

Parent
Physics 33M papers	Chemistry 28.9M papers	Engineering 25M papers	Quantum mechanics 13.3M papers
Organic chemistry 12.9M papers	Chemical engineering 3M papers	Hydrogen 390k papers	Fuel cells 54k papers
Current
Hydrogen fuel 13.1k papers
Child
Hydrogen economy 4,261 papers	Hydrogen vehicle 2,637 papers	Hydrogen technologies 1,761 papers	Regenerative fuel cell 608 papers
Unitized regenerative fuel cell 441 papers

Trends

Notes

History