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Graphene oxide (GO) can “evaporate” and then transform into quasi-carbon nanotubes on the aluminium foil surface placed 4 cm above an evaporating aqueous GO dispersion. The resulting self-assembly behavior of GO can be easily tailored by varying evaporation time and/or temperature, providing new approaches for preparing new large-area graphene-based materials.
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Feng et al. (2012) studied this question.
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