Conductive hydrogels have potential applications in shield-ing electromagnetic(EM)radiation interference in deformable and wear-able electronic devices,but usually suffer from poor environmental stabil-ity and stretching-induced shielding performance degradation.Although organohydrogels can improve the environmental stability of materials,their development is at the expense of reducing electrical conductivity and thus weakening EM interference shielding ability.Here,a MXene organo-hydrogel is prepared which is composed of MXene network for electron conduction,binary solvent channels for ion conduction,and abundant solvent-polymer-MXene interfaces for EM wave scattering.This organohydrogel possesses excellent anti-drying ability,low-temperature tolerance,stretchability,shape adaptability,adhesion and rapid self-healing ability.Two effective strategies have been proposed to solve the problems of current organohydrogel shielding materials.By reasonably controlling the MXene content and the glycerol-water ratio in the gel,MXene organohydrogel can exhibit exceptionally enhanced EM interference shielding performances compared to MXene hydrogel due to the increased physical cross-linking density of the gel.Moreover,MXene organohydrogel shows attractive stretching-enhanced interference effectiveness,caused by the connection and parallel arrangement of MXene nanosheets.This well-designed MXene organo-hydrogel has potential applications in shielding EM interference in deformable and wearable electronic devices.

Yuanhang Yu;Peng Yi;Wenbin Xu;Xin Sun;Gao Deng;Xiaofang Liu;Jianglan Shui;Ronghai Yu

School of Materials Science and Engineering,Beihang University,Beijing 100191,People's Republic of China;Science and Technology on Optical Radiation Laboratory,Beijing Institute of Environmental Features,Beijing 100854,People's Republic of China;Science and Technology on Electromagnetic Scattering Laboratory,Beijing Institute of Environmental Features,Beijing 100854,People's Republic of China

纳微快报（英文）

[1]Yuanhang Yu;Peng Yi;Wenbin Xu;Xin Sun;Gao Deng;Xiaofang Liu;Jianglan Shui;Ronghai Yu-.Environmentally Tough and Stretchable MXene Organohydrogel with Exceptionally Enhanced Electromagnetic Interference Shielding Performances)[J].纳微快报（英文）,2022(05):140-154

Organohydrogel,organohydrogels,organohydrogel

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