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Issue 47, 2012
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Mechanical failure of zigzag graphene nanoribbons under tensile strain induced by edge reconstruction

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Abstract

The structural and mechanical properties of graphene nanoribbons (GNRs) under uniaxial tensile strain are studied by density functional theory. The ideal strength of a zigzag GNR (120 GPa) is close to that of pristine graphene. However, for a GNR with both edges reconstructed to pentagon–heptagon pairs (from hexagon–hexagon pairs) it decreases to 94 GPa and the maximum tensile strain is reduced to 15%. Our results constitute a comprehensive picture of the edge structure effect on the mechanical properties of GNRs.

Graphical abstract: Mechanical failure of zigzag graphene nanoribbons under tensile strain induced by edge reconstruction

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Publication details

The article was received on 22 Jun 2012, accepted on 28 Sep 2012 and first published on 01 Oct 2012


Article type: Paper
DOI: 10.1039/C2JM34068B
Citation: J. Mater. Chem., 2012,22, 24676-24680
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    Mechanical failure of zigzag graphene nanoribbons under tensile strain induced by edge reconstruction

    Y. C. Cheng, Z. Y. Zhu and U. Schwingenschlögl, J. Mater. Chem., 2012, 22, 24676
    DOI: 10.1039/C2JM34068B

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