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Influence of the Plasma Power Supply Nature on the Plasma–Catalyst Synergism for the Carbon Dioxide Reforming of Methane

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3 Author(s)
Goujard, V. ; Lab. de Catalyse en Chimie Organique, Univ. of Poitiers, Poitiers, France ; Tatibouet, J.-M. ; Batiot-Dupeyrat, C.

The carbon dioxide reforming of methane was performed with a cordierite honeycomb monolith packed-bed and dielectric barrier discharges. The reactor performance (reactant conversions and product selectivities) was evaluated with and without a nickel catalyst and by comparing two different power supplies, a pulsed excitation (fast-rising voltage) and a sinusoidal excitation. The chemical reactivity of the plasma discharges generated by the pulsed power supply was higher than that by the sinusoidal power supply. A positive effect on the chemical reactivity, ascribed to the promotion of reactant activation (dissociative adsorption) on the nickel particles, was observed in the case of sinusoidal-excitation-nickel-catalyst association.

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Plasma Science, IEEE Transactions on  (Volume:37 ,  Issue: 12 )