Material for exhaust gas purifying catalyst, exhaust gas purifying catalyst made of the material and method for producing the exhaust gas purifying catalyst
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United States of America Patent
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Jan 30, 2001
Grant Date -
N/A
app pub date -
Mar 31, 1997
filing date -
Mar 29, 1996
priority date (Note) -
Expired
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Abstract
A catalytic base material for an exhaust gas purifying catalyst is produced by impregnating ceria powders with a barium contained solution and heating the ceria particles at approximately 400 to 1100.degree. C. to create and accumulate barium oxides fixed to surfaces of the ceria particles.
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