Single Carbon Fibers with a Macroscopic‐Thickness, 3D Highly Porous Carbon Nanotube Coating

• DOI: 10.1002/adma.201704419
• Publication Date: 2018-02-21T16:45:37Z
• Authors: Mingchu Zou; Wenqi Zhao; Huaisheng Wu; Hui Zhang; Wenjing Xu; Liusi Yang; Shiting Wu; Yunsong Wang; Yijun Chen; Lu Xu; Anyuan Cao
• Keywords: 02 engineering and technology; 0210 nano-technology

Carbon fiber (CF) grafted with a layer of carbon nanotubes (CNTs) plays an important role in composite materials and other fields; to date, the applications CNTs@CF multiscale fibers are severely hindered by limited amount CNTs on individual CFs weak interfacial binding force. Here, monolithic consisting 3D highly porous CNT sponge macroscopic-thickness (up several millimeters), which is directly grown single CF, fabricated. Mechanical tests reveal high sponge-CF strength owing presence thin transitional layer, completely inhibits CF slippage from matrix upon fracture fiber-epoxy composites. The conductive hybrid also act as template for introducing active (pseudopolymers oxides), solid-state fiber-shaped supercapacitor fiber-type lithium-ion battery performances demonstrated. These macroscopic thickness have many potential areas such hierarchically reinforced composites flexible energy-storage textiles.