Robust and Versatile Heterostructured Carbon Nanocomposites with Diverse Adaptability to Harsh Environments

作者：Qian Gong, Yingying Yu, Xiaolong Lu, Xiaojing Gong, Lixing Kang, Yongyi Zhang, Shanshan Wang, Wenyuan Wang, Dongmei Hu, Jiangtao Di, Qi Chen, Liwei Chen, Qingwen Li, Jin Zhang · 发表于：Advanced Functional Materials · 年份：2024 · DOI：10.1002/adfm.202406550 · 被引用次数：7 · 研究领域：Carbon Nanotubes in Composites、Graphene research and applications、Fullerene Chemistry and Applications

Abstract In carbon allotropes, interfacial engineering of various sp 2 nanocarbon building blocks has shown great promise in designing and fabricating creative nanocarbon assemblies with novel structural and functional properties. Here, a robust, flexible, metal‐like heterostructured carbon nanotube (CNT) film formed of amorphous graphene nanosheets (AGNs) on CNT networked film is demonstrated, presenting a sp 3 ‐ sp 2 dominated interfacial heterostructure. Extensive characterization reveals that AGN exhibits a complete absence of long‐range periodicity with twisty six‐member rings. Such 2D graphene mailed 1D CNT structure endows the heterostructured carbon nanocomposite film with a combination of unique properties, including surface nano‐flattening (flatness fourfold of the raw CNT film), excellent anti‐wear performance, greatly enhanced modulus (enhanced by 400%), hardness (enhanced by 300 times), and conductivity (enhanced by 270%). Unlike conventional carbon‐based materials, such flexible films show distinct substantial deformability and rapid resilience over wide temperatures (−196–≈1300 °C), which facilitate the design of new‐concept lightweight high‐temperature resistant and shape‐transformable materials for advanced aerospace applications under extreme conditions.