Low pressure drop, highly active catalyst systems using catalytically active gold
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United States of America Patent
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Jun 7, 2011
Grant Date -
Sep 2, 2010
app pub date -
Feb 28, 2007
filing date -
Feb 28, 2006
priority date (Note) -
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Abstract
Highly active, low pressure drop catalyst systems. Catalytically active material is provided on at least a portion of the channel sidewalls of a body comprising one or more flow-through channels. The channel sidewalls preferably bear a charge, e.g., an electrostatic or electret charge, to help adhere the catalytically active material to the sidewall. The catalytically active material preferably includes gold provided on a particulate support, and PVD techniques are used to deposit catalytically active gold onto the support. Optionally, the gold-bearing particulates may be charged as well in a manner to facilitate attraction between the particulates and the sidewalls.
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