Mesoscale assembly of chemically modified graphene into complex cellular networks

Suelen Barg (), Felipe Macul Perez, Na Ni, Paula do Vale Pereira, Robert C. Maher, Esther Garcia-Tuñon, Salvador Eslava, Stefano Agnoli, Cecilia Mattevi and Eduardo Saiz
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Suelen Barg: Centre for Advanced Structural Ceramics, Imperial College London
Felipe Macul Perez: Centre for Advanced Structural Ceramics, Imperial College London
Na Ni: Centre for Advanced Structural Ceramics, Imperial College London
Paula do Vale Pereira: Centre for Advanced Structural Ceramics, Imperial College London
Robert C. Maher: Imperial College London
Esther Garcia-Tuñon: Centre for Advanced Structural Ceramics, Imperial College London
Salvador Eslava: Centre for Advanced Structural Ceramics, Imperial College London
Stefano Agnoli: University of Padua
Cecilia Mattevi: Centre for Advanced Structural Ceramics, Imperial College London
Eduardo Saiz: Centre for Advanced Structural Ceramics, Imperial College London

Nature Communications, 2014, vol. 5, issue 1, 1-10

Abstract: Abstract The widespread technological introduction of graphene beyond electronics rests on our ability to assemble this two-dimensional building block into three-dimensional structures for practical devices. To achieve this goal we need fabrication approaches that are able to provide an accurate control of chemistry and architecture from nano to macroscopic levels. Here, we describe a versatile technique to build ultralight (density ≥1 mg cm−3) cellular networks based on the use of soft templates and the controlled segregation of chemically modified graphene to liquid interfaces. These novel structures can be tuned for excellent conductivity; versatile mechanical response (elastic-brittle to elastomeric, reversible deformation, high energy absorption) and organic absorption capabilities (above 600 g per gram of material). The approach can be used to uncover the basic principles that will guide the design of practical devices that by combining unique mechanical and functional performance will generate new technological opportunities.

Date: 2014
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DOI: 10.1038/ncomms5328

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