Exhaust Gas Purification Catalyst and Exhaust Gas Purification Catalyst Member
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United States of America Patent
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Issued Date -
Nov 19, 2009
app pub date -
Sep 14, 2006
filing date -
Dec 9, 2005
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Abstract
The present invention provides an exhaust gas purification catalyst and catalyst member superior in exhaust gas purification performance and heat resistance, low in cost, and reducing use of precious metals, that is, an exhaust gas purification catalyst, and a catalyst member using the same, comprising a composite oxide having a substantially perovskite type crystalline structure and expressed by the following formula <1> on which one or more elements selected from at least Pt, Pd, and Rh are carried:
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