Catalytic converter for cleaning exhaust gas

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A catalytic converter for cleaning exhaust gas includes a heat-resistant support which is coated with particles of a zirconium complex oxide of the following formula, where "R" represents at least one element selected from a group consisting of Al and rare earth elements other than Ce, "z" represents the degree of oxygen deficiency determined by the valence and content of the contained Al and/or rare earth element, 0.1