MXene-supported Co3O4quantum dots for superior lithium storage and oxygen evolution activities

A novel hybrid, composed of Co₃O₄quantum dots supported on Ti₃C₂T_x(MXene) nanosheets, exhibits a strong synergetic effect, and shows superior lithium storage (capacity = 766.5 mA h g⁻¹at 2 A g⁻¹after 400 cycles) and oxygen evolution (overpotential = 340 mV at 10 mA cm⁻²) activities.