METHOD FOR PURIFYING EXHAUST GAS
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United States of America Patent
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app pub date -
Jun 8, 2015
filing date -
Mar 30, 2006
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Abandoned
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Abstract
Provided is a catalyst composition capable of preventing decrease in catalytic activity due to grain growth of noble metal under high temperature or under change in oxidation reduction or further for long term use, and of achieving excellent catalytic activity over a long time.
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