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Bruce Parkinson1

1, University of Wyoming, Laramie, Wyoming, United States

We have synthsized new two dimensional nitrogen containing covalent organic framework (COF) materials with conductive backbones that may be ideal candidates for supercapacitor applications. The materials are "bottom up" synthesized rather than top down as in modifification of graphene or graphene oxide. We can produce materials with various sized ordered nanopores that can be functionalized with virtually any functional group. For supercapacitor applications we focus on lining the pores with charged carboxylate, quaternary nitrogens and sulfonate groups. Prelimary studies indicate that, depending on the dimension of the COF backbone, we can put as many as 6 to 12 carboxylate groups in each nanopore that have radii on the order of double layer thicknesses in electrolytes. This high density of charged pores allows us to approach the theoretical capacitive energy storage density. Composites with graphene and or graphene oxide increase the conductivity to reduce the time of charge/discharge cycles in these new materials.

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