Self-Assembly 3D Porous Crumpled MXene Spheres as Efficient Gas and Pressure Sensing Material for Transient All-MXene Sensors

3D porous crumpled MXene spheres were synthesized by ultrasonic spray pyrolysis technology. All-MXene transient sensors utilizing porous crumpled MXene sphere as sensing material and MXene films as electrodes were developed, which achieved excellent gas/pressure sensing performance. Both gas and pressure sensors can achieve rapid and controllable degradation in medical-grade H 2 O 2 (2%) within 6 h.