Composite Fe3O4-MXene-Carbon Nanotube Electrodes for Supercapacitors Prepared Using the New Colloidal Method

MXenes, such as Ti₃C₂T_x, are promising materials for electrodes of supercapacitors (SCs). Colloidal techniques have potential for the fabrication of advanced Ti₃C₂T_x composites with high areal capacitance (C_S). This paper reports the fabrication of Ti₃C₂T_X-Fe₃O₄-multiwalled carbon nanotube (CNT) electrodes, which show C_S of 5.52 F cm^-2 in the negative potential range in 0.5 M Na₂SO₄ electrolyte. Good capacitive performance is achieved at a mass …