Anantharaman, M R; Parambath, Sudeep M; Narayanan, T N; Aswathi, Ganesan; Shaijumon, M M; Hyunseung, Yang; Sehmus, Ozden; Prabir, Patra K; Matteo, Pasquali; Robert, Vajtai; Sabyasachi, Ganguli; Ajith, Roy K; Ajayan, M M(American Chemical Society, July 11, 2013)
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Abstract:
The creation of three-dimensionally engineered nanoporous architectures via
covalently interconnected nanoscale building blocks remains one of the fundamental challenges in
nanotechnology. Here we report the synthesis of ordered, stacked macroscopic three-dimensional
(3D) solid scaffolds of graphene oxide (GO) fabricated via chemical cross-linking of two-dimensional
GO building blocks. The resulting 3D GO network solids form highly porous interconnected
structures, and the controlled reduction of these structures leads to formation of 3D conductive
graphene scaffolds. These 3D architectures show promise for potential applications such as gas
storage; CO2 gas adsorption measurements carried out under ambient conditions show high
sorption capacity, demonstrating the possibility of creating new functional carbon solids starting
with two-dimensional carbon layers