About: http://webisa.webdatacommons.org/123562130

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	Catalysts are comprised of a wide range of chemicals represented by both elements and compounds, especially metals, halides, oxides, and sulfides.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com