Journal
JOURNAL OF PHYSICAL CHEMISTRY C
Volume 116, Issue 35, Pages 19018-19024Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jp3051005
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Funding
- HK-RGC [HKUST605710, 604608]
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Self-assembly is a powerful approach to making new superstructures and high-level hierarchical structures with unique physical/chemical properties from nanosized building blocks. As-prepared graphene oxides (GOs) are in general highly polydisperse not only in size but also in shape. Yet we have demonstrated that such GO sheets tend to assemble into two-dimensional, nearly monodisperse aggregate domains at controlled. It was further shown that the self-limiting assembly was driven by the competing interactions between electrostatic repulsion between the negatively charged GO sheets and attractive potentials. This finding provides a convenient platform to understand the forces involved in the 2D assembly and opens a new direction for creating novel materials and structures at the air/water interface.
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