• 文献标题:   Digitization of Free-Shapable Graphene Foam with Damage Tolerance
  • 文献类型:   Article
  • 作  者:   XU X, DU JJ, CAO QH, ZHANG DW, LI C, FU GW, GAO Y, YANG JY, GUAN C, HUANG W
  • 作者关键词:   3d printed template, design freedom, extraordinary damage tolerance, nitrogendoped graphene foam, various functional application
  • 出版物名称:   ADVANCED FUNCTIONAL MATERIALS
  • ISSN:   1616-301X EI 1616-3028
  • 通讯作者地址:  
  • 被引频次:   0
  • DOI:   10.1002/adfm.202300904 EA FEB 2023
  • 出版年:   2023

▎ 摘  要

3D construction of 2D sheets is the key to the utilization of graphene for large scale industrial applications. The layer by layer approach of additive manufacturing enables a high degree of design freedom for the fabrication of 3D graphene structures with excellent mechanical flexibility. Herein, the excellent mechanical and functional properties of 3D nitrogen-doped graphene (NG) foams fabricated is demonstrated via 3D printed templates and template-directed chemical vapor deposition. The super-elastic foam, consisting of interconnected networks of graphene sheets can make near complete strain recovery from load up to 62500 times its own weight, with extraordinary damage tolerance at a low density of 9.5 mg cm(-3). Fast transport of charge carriers (5 S cm(-1)) highlights the potential of the NG foam for use in various functional applications. Observed temperature-invariant reversible elasticity from -196 to 300 degrees C further emphasizes its value for use in demanding environments.