Fuel cells

https://www.wikidata.org/wiki/Q180253

Field Hierarchy

Parent
Engineering 24.7M papers		Chemical engineering 3.2M papers
Current
Fuel cells 57.6k papers
Child
Proton exchange membrane fuel cell 42.8k papers	Hydrogen fuel 15.2k papers	Gaseous diffusion 7,543 papers	Hydrogen economy 4,817 papers
Methanol fuel 4,776 papers	Hydrogen vehicle 3,058 papers	Direct-ethanol fuel cell 2,253 papers	Hydrogen fuel enhancement 2,247 papers
Hydrogen technologies 2,053 papers		Regenerative fuel cell 636 papers

Trends

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History