MnO2/La2O3/rGO composite catalyst prepared by electrodeposition as corona discharge anode for electrocatalytic cracking of toluene

To achieve the purification of coke oven gas and pyrolysis gas under oxygen-free conditions, the MnO2/La2O3/rGO composite catalyst was innovatively loaded directly onto the surface of porous titanium mesh anode by electrodeposition in this study, together with corona discharge for toluene cracking. During the catalyst preparation, the effects of potential and pH on the catalyst were verified in combination with cyclic voltammetry (CV) curves. The results showed that the toluene cracking rate reached 90% at 7 kV when the electrolyte concentrations of Mn2+, La3+ and rGO were 0.1 mol/L, 0.05 mol/L and 0.005 g/L, respectively. In addition, in this study, the distribution and changes of potential and electron temperature inside the reactor were simulated by COMSOL, and the concentration and change pattern of positive and negative ions at 7 kV were calculated. The results showed that both the plasma and the catalyst play a very significant role in this process.