Abstract
An experimental study has been carried out on the synthesis of carbon nanomaterials using Ni catalyst and Fe/Mo catalyst in methane/air or ethylene/air laminar, fuel-rich premixed flames under atmospheric pressure. By placing a pair of porous media in the upstream and downstream sides of the combustion space, excess enthalpy burning was applied to the mixture. Effects of formed gases on nanomaterials growth have been investigated in this study. As a result, it has been clarified that carbon nanomaterials with a diameter of from 20 to 50 nm are synthesized in the downstream side of the exothermic reaction zone.