Carrier for exhaust gas purification catalyst and exhaust gas purification catalyst
AssigneeMitsui Mining & Smelting Co., Ltd.
InventorsMasato Machida, Yuki Nagao, Michiyo Matsumoto, Yunosuke Nakahara
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Abstract
The invention relates to a catalyst carrier for exhaust gas purification catalyst which contains a metal phosphate containing Zr, and it provides a new catalyst carrier which exhibits excellent NOx purification performance in a high temperature region. The invention proposes a carrier for exhaust gas purification catalyst containing a metal phosphate which has a NASICON type structure and contains Zr.
Claims2
A carrier for exhaust gas purification catalyst comprising a metal phosphate which has a NASICON type structure and contains Zr, wherein the metal phosphate is represented by a formula:
- MxZr2(PO4)3 (M in the formula includes one or two or more elements selected from a group consisting of Pr, Nd, Y, Ce, Mn, La, and Fe, and x is from 0.25 to 1).
Dependencies are inferred from the claim text.