Mo2CTxMXene材料,以其高导电性和丰富的表面官能团而闻名,被广泛用作超级电容器的电极材料。然而,它们在电化学储能过程中的堆叠倾向阻碍了它们的性能。纳米棒状Ni的原位生长,Co双金属金属有机骨架(Ni,Co-MOF)在Mo2CTxMXene上有效地减轻了这种堆叠。它们的多孔结构和高比表面积,MOFs在储能方面表现出色,双金属MOFs的性能优于单金属MOFs。Mo2CTxMXene与Ni的协同作用,Co-MOF业绩突出。在1MKOH的三电极系统中,Mo2CTx/Ni,Co-MOF复合材料在1Ag-1下显示58mAhg-1(56.26mAhcm-3)的比电容。当用于Mo2CTx/Ni时,Co-MOF//AC非对称超级电容器,在293Wkg-1(0.284Wcm-3)的功率密度下,它的能量密度为22.7Whkg-1(0.022Whcm-3)。未来的工作将集中在加强合成方法,探索不同的双金属组合,优化气体传感器的电极设计,电池,燃料电池,生物传感器,等等,具有出色的性能和可持续性。
Mo2CTx MXene materials, known for their high conductivity and abundant surface functional groups, are widely utilized as electrode materials in supercapacitors. However, their tendency to stack during electrochemical energy storage hinders their performance. The in situ growth of
nanorod-shaped Ni,Co bimetallic metal-organic frameworks (Ni,Co-MOF) on Mo2CTx MXene effectively mitigates this stacking. With their porous structure and high specific surface area, MOFs excel in energy storage, and bimetallic MOFs outperform monometallic ones. The synergy between Mo2CTx MXene and Ni,Co-MOF yields an outstanding performance. In a three-electrode system with 1 M KOH, the Mo2CTx/Ni,Co-MOF composite shows a specific capacitance of 58 mAh g-1 (56.26 mAh cm-3) at 1 A g-1. When used in a Mo2CTx/Ni,Co-MOF//AC asymmetric supercapacitor, it achieves an energy density of 22.7 Wh kg-1(0.022 Wh cm-3) at a power density of 293 W kg-1 (0.284 W cm-3). Future work will focus on enhancing synthesis methods, exploring different bimetallic combinations, and optimizing electrode designs for gas sensors, batteries, fuel cells, biological sensors, and so on, with outstanding performance and sustainability.