Interlayer ionic diffusion driven in situ QD-deposition in the Co9S8–LDH hybrid supercapacitor electrode

QDs-Co 9 S 8 /CoNi-LDH was assembled by selective sulfurization derived from 2D MOF with the loading of Co 9 S 8 quantum dots into layered double hydroxides. The constructed hybrid supercapacitor shown energy density of 33.3 Wh kg −1 at 820.0 W kg −1 .