Matches in DBpedia 2014 for { <http://dbpedia.org/resource/United_States_Hydrogen_Policy> ?p ?o. }
- United_States_Hydrogen_Policy type Whole100003553.
- United_States_Hydrogen_Policy comment "The principle of a fuel cell was discovered by Christian Friedrich Schönbein in 1838, and the first fuel cell was constructed by Sir William Robert Grove in 1839. The fuel cells made at this time were most similar to today's phosphoric acid fuel cells. Most hydrogen fuel cells today are of the proton exchange membrane (PEM) type. A PEM converts the chemical energy released during the electrochemical reaction of hydrogen and oxygen into electrical energy.".
- United_States_Hydrogen_Policy label "United States Hydrogen Policy".
- United_States_Hydrogen_Policy sameAs m.0glpf53.
- United_States_Hydrogen_Policy sameAs Q7890685.
- United_States_Hydrogen_Policy sameAs Q7890685.
- United_States_Hydrogen_Policy sameAs United_States_Hydrogen_Policy.
- United_States_Hydrogen_Policy wasDerivedFrom United_States_Hydrogen_Policy?oldid=597638885.
- United_States_Hydrogen_Policy depiction Honda_Hydrogen_Fuel_Cell.jpg.
- United_States_Hydrogen_Policy isPrimaryTopicOf United_States_Hydrogen_Policy.