Se-Hee Lee and Seyong Choi, "Bimetallic zeolitic imidazolate frameworks for symmetric electrical double-layer supercapacitors with aqueous electrolytes", MATERIALS LETTERS, 207, (2017), 129~132.

Abstract:

We have investigated a facile synthesis of nanoporous carbon using a bimetallic (Co2+ and Zn2+) zeolitic imidazolate framework (ZIF) as a precursor. The properties of the as-prepared bimetallic ZIF-derived carbon, including the specific surface area, porosity, and degree of graphitization, are precisely controlled. This material has been directly applied in a symmetric electrical double-layer supercapacitor (EDLC). The specific capacitance of the symmetric EDLC is estimated to be 10.5 F.g^(-1) at a high current density of 10 A.g^(-1) in 0.5 M sulfuric acid.