Cu/Ni Keggin-based viologen complexes with water-assisted 1D proton channels for asymmetric supercapacitors

Abstract

Cu/Ni Keggin viologen complexes with one-dimensional proton channels are synthesized and directly used as excellent materials for supercapacitors. The 1//AC ASC exhibits an energy density of 9.39 W h kg−1 at a power density of 6000 W kg−1.