Nox purification catalyst
AssigneesCambridge Enterprise Limited, Toyota Jidosha Kabushiki Kaisha
InventorsMayuko OSAKI, Hirohito HIRATA, Naoyuki HARA, Brian JOHNSON, Andrew WHEATLEY, Helen SKELTON, Muriel LEPAGE
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Abstract
The invention relates to a catalyst able to exhibit an NOX purification performance at a low temperature and/or in an oxidizing atmosphere, that is, a nitrogen oxide purification catalyst including gold atoms and nickel atoms in a solid and a state of close proximity.
Claims5
1-7. (canceled)
The nitrogen oxide purification catalyst for purifying NOx in an exhaust gas by concentrating the catalyst with the exhaust gas at a temperature including the range of 350 to 500° C. comprising gold atoms and nickel atoms in a solid supported on a metal oxide carrier and in an alloyed state, wherein an average particle size of said solid is 1.5 to 5.5 nm.
Dependencies are inferred from the claim text.