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Issue 21, 2017
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Magnetic field controlled graphene oxide-based origami with enhanced surface area and mechanical properties

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Abstract

One can utilize the folding of paper to build fascinating 3D origami architectures with extraordinary mechanical properties and surface area. Inspired by the same, the morphology of 2D graphene can be tuned by addition of magnetite (Fe3O4) nanoparticles in the presence of a magnetic field. The innovative 3D architecture with enhanced mechanical properties also shows a high surface area (āˆ¼2500 m2 gāˆ’1) which is utilized for oil absorption. Detailed microscopy and spectroscopy reveal rolling of graphene oxide (GO) sheets due to the magnetic field driven action of magnetite particles, which is further supported by molecular dynamics (MD) simulations. The macroscopic and local deformation resulting from in situ mechanical loading inside a scanning electron microscope reveals a change in the mechanical response due to a change internal morphology, which is further supported by MD simulation.

Graphical abstract: Magnetic field controlled graphene oxide-based origami with enhanced surface area and mechanical properties

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Article information


Submitted
13 Feb 2017
Accepted
28 Apr 2017
First published
03 May 2017

Nanoscale, 2017,9, 6991-6997
Article type
Communication

Magnetic field controlled graphene oxide-based origami with enhanced surface area and mechanical properties

O. Park, C. S. Tiwary, Y. Yang, S. Bhowmick, S. Vinod, Q. Zhang, V. L. Colvin, S. A. S. Asif, R. Vajtai, E. S. Penev, B. I. Yakobson and P. M. Ajayan, Nanoscale, 2017, 9, 6991
DOI: 10.1039/C7NR01054K

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