Exhaust gas purification catalyst and exhaust gas purification honeycomb structure with catalyst
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United States of America Patent
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Issued Date -
Jul 1, 2010
app pub date -
Jan 22, 2008
filing date -
Jan 24, 2007
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Abandoned
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Abstract
[wherein M represents a combination of an element substantially selected from Ba and Sr; y represents a number of 0 to 1; and δ represents a value that is so defined as to satisfy the charge neutrality condition] carrying one or two noble metals selected from Pd and Rh and (B) active alumina carrying one or two noble metal selected from Pd and Rh; and a catalytic honey-comb structure for exhaust gas purification, which is produced by wash-coating the exhaust gas purification catalyst onto a ceramic- or metal-made honey-comb.
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