Proton exchange membrane fuel cell

https://www.wikidata.org/wiki/Q899619

Field Hierarchy

Parent
Biology 34.8M papers	Chemistry 28.4M papers	Engineering 23.9M papers	Biochemistry 13.3M papers
Organic chemistry 12.8M papers	Genetics 9.7M papers	Chemical engineering 3.1M papers	Catalysis 3M papers
Membrane 954k papers		Fuel cells 54k papers
Current
Proton exchange membrane fuel cell 41k papers
Child
Direct-ethanol fuel cell 2,231 papers	Regenerative fuel cell 627 papers	Unitized regenerative fuel cell 453 papers

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History