V₂CT_x nanosheet modified layered double hydroxide nanosheet arrays for high-performance supercapacitors

Exploring newly regulative strategies to design highly efficient electrode materials is of great importance for supercapacitors. Herein, we highlight an interfacial engineering strategy for fabricating NiMn-LDH/V₂CT_x/NF hybrids with heterogeneous structure via a simple hydrothermal reaction. Detailed analysis confirms that the interfacial effect between NiMn-LDH and V₂CT_x enables electron transfer from NiMn-LDH to V₂CT_x in the hybrid material, resulting in improved electrochemical reactivity. As expected, the optimal NiMn-LDH/V₂CT_x/NF-2 demonstrates much better specific capacity than that of its counterparts. Moreover, this strategy can be extended to NiFe-LDH/V₂CT_x/NF hybrids, further proving the coupling effect between MXene and LDH is beneficial for the electrochemical performance. This work presents a new pathway to design advanced materials for supercapacitors. © 2022 Published by Elsevier B.V.