Versatile MXene Gels Assisted by Brief and Low-Strength Centrifugation

A low-strength-centrifugation-assisted approach for rapid gelation of Ti 3 C 2 T x MXene with a very low dispersion concentration into multifunctional 3D architectures is developed. On the basis of pH-induced surface termination changes, the MXene gels exhibit reconfigurable internal structures and tunable rheological, tribological, electrochemical, infrared-emissive and photothermal-conversion properties. By adopting a gel with optimized pH value, high lubrication, remarkable capacitance, long-term capacitance retention and high-precision screen- or extrusion-printing into high-resolution anticounterfeiting patterns can be achieved.