Use of synergistic interactions to fabricate strong, tough, and conductive artificial nacre based on graphene oxide and chitosan

Sijie Wan, Jingsong Peng, Yuchen Li, Han Hu, Lei Jiang, Qunfeng Cheng

Research output: Contribution to journalArticleResearchpeer-review

165 Citations (Scopus)

Abstract

Graphene is the strongest and stiffest material, leading to the development of promising applications in many fields. However, the assembly of graphene nanosheets into macrosized nanocomposites for practical applications remains a challenge. Nacre in its natural form sets the "gold standard" for toughness and strength, which serves as a guide to the assembly of graphene nanosheets into high-performance nanocomposites. Here we show the strong, tough, conductive artificial nacre based on graphene oxide through synergistic interactions of hydrogen and covalent bonding. Tensile strength and toughness was 4 and 10 times higher, respectively, than that of natural nacre. The exceptional integrated strong and tough artificial nacre has promising applications in aerospace, artificial muscle, and tissue engineering, especially for flexible supercapacitor electrodes due to its high electrical conductivity. The use of synergistic interactions is a strategy for the development of high-performance nanocomposites.

Original languageEnglish
Pages (from-to)9830-9836
Number of pages7
JournalACS Nano
Volume9
Issue number10
DOIs
Publication statusPublished - 27 Oct 2015
Externally publishedYes

Keywords

  • artificial nacre
  • chitosan
  • graphene oxide
  • synergistic interaction

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