| abstract |
Disclosed is an exhaust gas purification catalyst carrier which includes a phosphate salt represented by formula: MPO 4 (wherein M represents Y, La, or Al) or a zirconium phosphate represented by formula ZrP 2 O 7 ; an exhaust gas purification catalyst containing a noble metal at least containing Rh and supported on the carrier; and an exhaust gas purification catalyst product having a catalyst support made of a ceramic or metallic material, and a layer of the exhaust gas purification catalyst, the layer being supported on the catalyst support. |