Experimental and kinetic investigation of the plasma catalytic dry reforming of methane over perovskite LaNiO3 nanoparticles

Plasma-assisted catalytic conversion of CH 4 and CO 2 into synthesis gas was performed in a dielectric barrier discharge reactor coupled with perovskite La–Ni nanoparticles (LaNiO 3 NPs). Compared to supported catalysts such as Ni/γ-Al 2 O 3 , La–Ni/γ-Al 2 O 3 and Ni/La 2 O 3 , LaNiO 3 NPs showed better catalytic performance. The results show that the low flow rate of feed gases and high input power were favorable for the conversions of CH 4 and CO 2 as well as the selectivities of desired products, but led to lower energy efficiency. A global kinetic model according to argon dilution in plasma-catalytic system was proposed and employed to foresee the CH 4 and CO 2 conversion assisted by plasma-catalysts hybrid effect. The kinetic model indicates that the reactant conversion rate was an exponential function of the discharge energy .