MXene-drivenin situconstruction of hollow core-shelled Co3V2O8@Ti3C2Txnanospheres for high-performance all-solid-state asymmetric supercapacitors

Ti 3 C 2 T x provides in situ nucleation sites for hollow Co 3 V 2 O 8 nanospheres while achieve its own evolution from 2D to 3D. The as-made hollow core-shelled Co 3 V 2 O 8 @Ti 3 C 2 T x shows a high reversible capacity and prolonged cycling stability.