The study explores the structural and electrochemical properties of Bi2MoO6, MXene, and their composite, Bi2MoO6/MXene. The XRD analysis reveals that Bi2MoO6 has an orthorhombic crystal structure, while MXene has a layered structure. The TEM images show that Bi2MoO6 particles are embedded on the surface of MXene nanosheets, forming a heterojunction. The EDX spectra confirm the presence of Bi, Mo, O, and Ti elements in the composite.
The BET analysis shows that the surface area and pore volume of Bi2MoO6/MXene are higher than those of Bi2MoO6 and MXene, indicating its higher porosity. The XPS spectra reveal the presence of C-C, C-O, and C-F bonds in MXene, and Bi3+ and Mo6+ ions in Bi2MoO6.
The electrochemical properties of the samples were investigated using CV and GCD analysis. The CV curves show pseudocapacitive behavior, and the specific capacitance values are highest for Bi2MoO6/MXene. The GCD curves also show pseudocapacitive behavior, and the specific capacitance values decrease with increasing current density.
The Ragone plot shows that Bi2MoO6/MXene has a high energy density and power density. The capacity retention of Bi2MoO6/MXene is 64.47% after 1000 cycles. The EIS analysis shows that Bi2MoO6/MXene has a low charge-transfer resistance and electrolyte resistance.
Overall, the study demonstrates that the addition of MXene to Bi2MoO6 enhances its electrochemical properties, making it a promising material for supercapacitor applications.