Chemical Deposition of Nickel Hexacyanoferrate Nanoparticles on a Stainless-Steel Mesh Substrate for Supercapacitor Application
Energy storage is one of the most important issues in the scientific community. Among the other significant concerns in this field are the economic and environmental issues. Chemical deposition has attracted the attention of a number of researchers owing to its advantages such as its binder-free, fast, and simple electrode, compared to the electrochemical synthesis, as well as its one-step production and coating. In this research, a coating of Nickel hexacyanoferrate nanoparticles (NiHCF) was deposited on a Stainless-Steel Mesh (SSM) substrate through the chemical deposition method. The electrode was analyzed through X-Ray Diffraction (XRD) and Field Emission Scanning Electron Microscopy (FE-SEM) methods based on which, the presence of nickel hexacyanoferrate nanoparticles on the substrate was confirmed. The electrochemical performance of the binder-free NiHCF electrode as the supercapacitor electrode in a solution containing 0.5 M sodium Sulfate (NaOH) aqueous electrolyte (vs. Ag/AgCl) electrode was evaluated using the cyclic voltammetry and galvanostatic charge/discharge tests. According to the findings, the mentioned electrodes were characterized by a high specific capacitance of 465.7 F g-1 and current density of 1 A g-1, an appropriate rate capability and structure. The current research primarily aimed to obtain an electrode with high specific capacity and acceptable stability, and the obtained results highlighted its wide applications as the supercapacitor.
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