Three-dimensional ternary NixCuyZnz(CO3)(OH)2 electrodes for supercapacitors: electrochemical properties and applications

Schematic of the NiCu (CO 3 )(OH) 2 , NiZn (CO 3 )(OH) 2 , and Ni x Cu y Zn z (CO 3 )(OH) 2 compounds prepared on a Ni foam substrate.