Patent ID: 8011374

Claim:
A method for making a cigarette comprising a multiphase mixed metal oxide catalyst, comprising: combining first nanoscale particles and second nanoscale particles, wherein said first and second metal particles consist of a first and second metal oxide selected from the group consisting of copper oxide, cerium oxide, titanium oxide, and iron oxide, to form a mixture of nanoscale particles, wherein the first nanoscale particles comprise a first metallic element and the second nanoscale particles comprise a second metallic element different from the first metallic element; heating the mixture of nanoscale particles to form a sintered mixed metal oxide catalyst; incorporating the mixed metal oxide catalyst in and/or on at least one of tobacco cut filler, cigarette paper and cigarette filter material; providing the cut filler to a cigarette making machine to form a tobacco column; placing the paper around the tobacco column to form a tobacco rod of a cigarette; and optionally attaching the cigarette filter material to the tobacco rod with tipping paper.