Extraordinary tensile strength and ductility of scalable nanoporous graphene

Hamzeh Kashani, Yoshikazu Ito, Jiuhui Han, Pan Liu, Mingwei Chen

Research output: Contribution to journalArticlepeer-review

59 Citations (Scopus)


While the compressive strength-density scaling relationship of ultralight cellular graphene materials has been extensively investigated, high tensile strength and ductility have not been realized in the theoretically strongest carbon materials because of high flaw sensitivity under tension and weak van der Waals interplanar bonding between graphene sheets. In this study, we report that large-scale ultralight nanoporous graphene with three-dimensional bicontinuous nanoarchitecture shows orders of magnitude higher strength and elastic modulus than all reported ultralight carbon materials under both compression and tension. The high-strength nanoporous graphene also exhibits excellent tensile ductility and work hardening, which are comparable to well-designed metamaterials but until now had not been realized in ultralight cellular materials. The excellent mechanical properties of the nanoporous graphene benefit from seamless graphene sheets in the bicontinuous nanoporosity that effectively preserves the intrinsic strength of atomically thick graphene in the three-dimensional cellular nanoarchitecture.

Original languageEnglish
Article numbereaat6951
JournalScience Advances
Issue number2
Publication statusPublished - 2019 Feb 15
Externally publishedYes

ASJC Scopus subject areas

  • General


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