| abstract |
A good oxygen storage capacity, an exhaust gas purification performance after high-temperature durability, provide particularly NO X purification performance excellent exhaust gas purifying catalyst rich region. A support containing a substituted aluminum borate in which 2.5 to 11.5 at% of aluminum atoms in aluminum borate are substituted with Fe, Co, Ga, or Ni, Pd supported on the support, and An exhaust gas purifying catalyst, and a catalyst support made of a ceramic or metal material, and an exhaust gas purifying catalyst structure comprising the exhaust gas purifying catalyst layer supported on the catalyst support. To do. [Selection figure] None |