Cut filler compositions, cigarettes, methods for making cigarettes and
methods for smoking cigarettes are provided, which involve the use of a
catalyst capable converting carbon monoxide to carbon dioxide and/or
nitric oxide to nitrogen. Cut filler compositions comprise tobacco and at
least one catalyst. Cigarettes are provided, which comprise a cut filler
having at least one catalyst. The catalyst comprises nanoscale metal
and/or metal oxide particles supported on a fibrous support. The catalyst
can be prepared by combining a dispersion of nanoscale particles with a
fibrous support, or by combining a metal precursor solution with a
fibrous support and then heat treating the fibrous support.