About: http://webisa.webdatacommons.org/38299599

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	The fuel cell, as described, becomes operational and produces electrical energy when the oxygen-reducing cathode is contacted with an oxidant, such as oxygen, and the fuel-oxidizing anode is contacted with a fuel source.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com