EXHAUST GAS PURIFICATION CATALYST

摘要

Disclosed is an exhaust gas purification catalyst exhibiting excellent exhaust gas purification performance. Specifically disclosed is an exhaust gas purification catalyst containing at least one of a first complex oxide represented by the following general formula: A(Al2-xBx)O4 and a second complex oxide represented by the following general formula: (Al2-yCy)O3. In the formulae, the element A represents a divalent transition metal element other than platinum group elements; the elements B and C each represent a transition metal element other than platinum group elements; x satisfies 0 < x < 2; and y satisfies 0 < y < 2.