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IMAGE: Macroscopic observation of WCA shows that increasing the number of graphene layers results in higher WCA, which hints hydrophobicity of multilayer graphene. view more
Credit: Institute for Basic Science
Graphene is a two-dimensional material in which carbon atoms are arranged in hexagonal structures, and it has unique physical and chemical properties such as sub-nanometer thickness, chemical stability, mechanical flexibility, electrical and thermal conductivity, optical transparency, and selective permeability to water. Due to these properties, various applications of graphene in transparent electrodes, desalination, electrical energy storage, and catalysts have been vigorously studied.
Because graphene is an extremely thin material, for practical uses, it has to be deposited on top of other materials that serve as substrate. One of the research subjects which is of great scientific interest is how graphene on a substrate interacts with water. Wettabili
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