Graphene: High‐Performance Supercapacitors Based on a Zwitterionic Network of Covalently Functionalized Graphene with Iron Tetraaminophthalocyanine (Adv. Funct. Mater. 29/2018)

A strategy toward a new class of graphene-based electrodes for supercapacitors is presented by Radek Zbořil, Michal Otyepka and co-workers in article number 1801111. Fluorographene chemistry leads to a high-yield covalent installation of carboxyl groups. Partial conjugation of tetra-amino-iron-phthalocyanine, yields a zwitterionic architecture, which proved crucial for boosting the capacitance and the energy density of the material in a safe Na2SO4 aqueous electrolyte.