About: http://webisa.webdatacommons.org/249659482

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	Noble metals, such as platinum and palladium, retain Any catalyst that can, under a reducing atmosphere and at elevated temperatures, convert the nitrogen oxides to a product comprising ammonia can be used in the first stage herein.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk