4D printing of MXene hydrogels for high-efficiency pseudocapacitive energy storage.

ABSTRACT: 2D material hydrogels have recently sparked tremendous interest owing to their potential in diverse applications. However, research on the emerging 2D MXene hydrogels is still in its infancy. Herein, we show a universal 4D printing technology for manufacturing MXene hydrogels with customizable geometries, which suits a family of MXenes such as Nb₂CT_x, Ti₃C₂T_x, and Mo₂Ti₂C₃T_x. The obtained MXene hydrogels offer 3D porous architectures, large specific surface areas, high electrical conductivities, and satisfying mechanical properties. Consequently, ultrahigh capacitance (3.32 F cm^-2 (10 mV s^-1) and 233 F g^-1 (10 V s^-1)) and mass loading/thickness-inde

SUBMITTER: Li K 

PROVIDER: S-EPMC9653467 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature