Hydrothermal synthesis of simonkolleite microplatelets on nickel foam-graphene for electrochemical

What is it about?

Nickel foam-graphene (NF-G) was synthesized by chemical vapour deposition followed by facial in situ aqueous chemical growth of simonkolleite (Zn 5 (OH) 8 Cl 2 ·H 2 O) under hydrothermal conditions to form NF-G/simonkolleite compos- ite.

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Why is it important?

Electrochemical measurements of the composite electrode give a specific capac- itance of 350 Fg − 1 at current density of 0.7 Ag − 1 for our device measured in three-electrode configuration. The composite also shows a rate capability of ~87 % capacitance retention at a high current density of 5 Ag− 1, which makes it a good candidate as an electrode material for supercapacitor applications.