| 简介 |
Provided is a catalyst carrier which contains an apatite-type composite oxide and provides a catalyst carrier which can enhance NOx purifying performance by means of improvement of phosphorus poisoning. Provided is a catalyst carrier which contains a composite oxide expressed by the following composition formula : LaxPryM10.00-x-y(Si6.00-wNw)O27.00-z (wherein 2.50≰x≰6.00, 2.50≰y≰6.00, 5.00≰x+y≰9.50, 0.00≰z≰3.00, 0.00≰w≰3.00, M represents one or two or more elements selected from alkaline earth metal elements and rare earth elements, and N represents at least one kind of cation element). |
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