COLL 36 |
| Kenneth Brezinsky, Department of Mechanical and Industrial Engineering, Department of Mechanical and Industrial Engineering, University of Illinois at Chicago, Chicago, IL 60607 |
| A novel, synergistic, hybrid synthesis process has been developed, based around microwave heating - varied in power, duration and field distribution. When applied to transition metal particles surrounded by a reactant gas in a fluidized bed, the microwave radiation promotes surface reaction of the metal particles with the gas to form catalytically active nanolayers of ceramic nitrides or carbides. Using this approach, nitride nanolayers of chromium, molybdenum and tungsten have been produced by microwave heating of metal particles fluidized in nitrogen. Nanolayer carbides of molybdenum and tungsten have been produced when particles are fluidized in ethylene. Catalytic activity of the carbides for the water gas shift reaction has been indicated in preliminary tests. |
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The Science and Engineering of Catalyst Preparation
8:30 AM-11:55 AM, Sunday, March 28, 2004 Marriott -- Orange County 3, Oral
Division of Colloid and Surface Chemistry |