Nanostructured catalyst particle/catalyst carrier particle system
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United States of America Patent
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Jan 20, 2004
Grant Date -
Jul 24, 2003
app pub date -
Jan 24, 2002
filing date -
Jan 24, 2002
priority date (Note) -
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Abstract
A method of dispersing nanosized catalyst particles on the surface of larger catalyst carrier particles is disclosed. The coating process is done dry and yields high effective surface area of nanosized catalyst particles coated on the surface of catalyst carrier particles. In this process, nanosized catalyst particles and catalyst carriers are mechanically mixed in a high velocity and impact force environment to which catalyst particles are embedded, or filmed, on the surface of catalyst carrier particles without using water or any other additional chemicals. The catalyst composite structure produced comprises better coating uniformity of the catalyst particle on its catalyst carrier. The catalyst particle/catalyst carrier composite produced can be applied to a support structure, such as a monolith as readily used in automotive or other applications.
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