PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • This activity is critical for efficient storage of electrical energy.The new catalyst does not use precious metals such as platinum, which is more expensive per ounce than gold, yet it performs under certain conditions as effectively as many well-known and prohibitively expensive precious-metal catalysts developed for battery and fuel-cell use.
http://www.w3.org/ns/prov#wasQuotedFrom
  • nanotech-now.com