Superior fatigue resistant bioinspired graphene-based nanocomposite via synergistic interfacial interactions

Sijie Wan, Feiyu Xu, Lei Jiang, Qunfeng Cheng

Research output: Contribution to journalArticleResearchpeer-review

72 Citations (Scopus)

Abstract

Excellent fatigue resistance is a prerequisite for flexible energy devices to achieve high and stable performance under repeated deformation state. Inspired by the sophisticated interfacial architecture of nacre, herein a super fatigue-resistant graphene-based nanocomposite with integrated high tensile strength and toughness through poly(dopamine)-nickel ion (Ni2+) chelate architecture that mimics byssal threads is demonstrated. These kind of synergistic interfacial interactions of covalent and ionic bonding effectively suppress the crack propagation in the process of fatigue testing, resulting in superhigh fatigue life of this bioinspired graphene-based nanocomposite (BGBN). In addition, the electrical conductivity is well kept after fatigue testing. The proposed synergistic interfacial interactions could serve as a guideline for fabricating high-performance multifunctional BGBNs with promising applications in flexible energy devices, such as flexible electrodes for supercapacitors and lithium batteries, etc.

Original languageEnglish
Article number1605636
Number of pages7
JournalAdvanced Functional Materials
Volume27
Issue number10
DOIs
Publication statusPublished - 10 Mar 2017
Externally publishedYes

Keywords

  • bioinspired
  • fatigue
  • graphene
  • nanocomposites
  • synergistic interfacial interactions

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