In-situ polymerization induced Mn₂O₃ sites as intrinsic carbon defects for capacitive organic dye removal

This paper aims to explanation on the effects of pseudo-capacitance on the capacitive performance of defective carbon-based materials. A series composite samples of Mn₂O₃ doped porous carbon were prepared with combining N induced intrinsic defects, we testified it as the electrode for flow capacitive Rhodamine B (RhB) removal performance. It is proved that the presence of Mn₂O₃ can indeed supply additional defects and pseudo-capacitance. Furthermore, the optimized Mn₂O₃@NCT-2 presented high quality capacity of 200F/g at 1 A/g in 1.0 M NaCl. Our results also displayed an extremely high RhB-adsorption capacity of 766.5 mg/g at an applied voltage of 1.2 V. These acquired new knowledge could advance expand a significant defect-engineering tactics to further improve the desalination nature of electrode materials.