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Capacitive deionization is an attractive approach to water desalination and treatment. To achieve efficient capacitative desalination, rationally designed electrodes with high specific capacitances, conductivities, and stabilities are necessary. Here we report the construction of a three-dimensional (3D) holey graphene hydrogel (HGH). This material contains abundant in-plane pores, offering efficient...
The electrochemical capacitance of porous carbon materials including activated carbon, carbon nanotubes, and carbon gels were investigated. Due to their different porous structures, these carbons showed different capacitive behaviors in aqueous solutions and ionic liquids. It was found that carbon nanotubes, having the largest micropore volume, and the carbon gels with 3D macroporous framework presented...
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