Issue 8, 2011

In situself-assembly of mild chemical reductiongraphene for three-dimensional architectures

Abstract

Three-dimensional (3D) architectures of graphene are of interest in applications in electronics, catalysis devices, and sensors. However, it is still a challenge to fabricate macroscopic all-graphene 3D architectures under mild conditions. Here, a simple method for the preparation of 3D architectures of graphene is developed via the in situself-assembly of graphene prepared by mild chemical reduction at 95 °C under atmospheric pressure without stirring. No chemical or physical cross-linkers or high pressures are required. The reducing agents include NaHSO3, Na2S, Vitamin C, HI, and hydroquinone. Both graphene hydrogels and aerogels can be prepared by this method, and the shapes of the 3D architectures can be controlled by changing the type of reactor. The 3D architectures of graphene have low densities, high mechanical properties, thermal stability, high electrical conductivity, and high specific capacitance, which make them candidates for potential applications in supercapacitors, hydrogen storage and as supports for catalysts.

Graphical abstract: In situ self-assembly of mild chemical reduction graphene for three-dimensional architectures

Article information

Article type
Paper
Submitted
08 apr 2011
Accepted
22 apr 2011
First published
23 iyn 2011

Nanoscale, 2011,3, 3132-3137

In situ self-assembly of mild chemical reduction graphene for three-dimensional architectures

W. Chen and L. Yan, Nanoscale, 2011, 3, 3132 DOI: 10.1039/C1NR10355E

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