Nanoscale particles of iron aluminide and iron aluminum carbide by the reduction of iron salts
AssigneePhilip Morris USA Inc.
InventorsYezdi Pithawalla, Sarojini Deevi
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Abstract
A method of making intermetallic nanoscale particles comprising iron aluminide and/or iron aluminum carbide comprising the steps of preparing a mixture of a solvent, an iron salt and LiAlH4, and heating the mixture to form the intermetallic nanoscale particles. The intermetallic nanoscale particles, which can comprise intermetallic nanoscale particles of iron aluminide and/or iron aluminum carbide in an alumina matrix, are capable of reducing the amount of 1,3-butadiene in the mainstream smoke of a cigarette.
Claims34
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A cut filler composition comprising tobacco and nanoscale particles for reducing the amount of 1,3-butadiene in tobacco smoke, wherein the nanoscale particles comprise intermetallic nanoscale particles of iron aluminide and/or iron aluminum carbide in an alumina matrix.
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