Electrodeposition of NiCu bimetal on 3D printed electrodes for hydrogen evolution reactions in alkaline media


Hüner B., Kayataş Demir N., Kaya M. F.

International Journal of Hydrogen Energy, vol.47, pp.12136-12146, 2022 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 47
  • Publication Date: 2022
  • Doi Number: 10.1016/j.ijhydene.2021.10.009
  • Journal Name: International Journal of Hydrogen Energy
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Artic & Antarctic Regions, Chemical Abstracts Core, Communication Abstracts, Environment Index, INSPEC
  • Page Numbers: pp.12136-12146
  • Keywords: Hydrogen evolution reaction, Binary coating, 3D printed electrodes, Electrochemical deposition, WATER ELECTROLYSIS, ELECTROCHEMICAL FABRICATION, RENEWABLE ENERGY, CARBON, COPPER, COATINGS, CATHODE, ALLOYS
  • Erciyes University Affiliated: Yes

Abstract

© 2021 Hydrogen Energy Publications LLCIn this study, hydrogen evolution electrodes are prepared by a 3D printing method using conductive PLA filament. To improve their conductivity and electrochemical performance, Nickel–Copper (NiCu) binary coating is deposited on 3D printed (3DP) electrodes in a solution bath with different volume ratios. Electrodes have been prepared as NixCux, NixCu2x, and NixCu3x according to Ni and Cu volume ratio (Ni–Cu; 10-10, 10–20, and 10–30 mL, respectively). Surface morphologies of the samples are measured using FE-SEM, EDX and XRD techniques. Electrochemical characterizations are investigated by LSV, CV and EIS. According to the results, the current density of NiCu coated 3DP electrodes is higher than the uncoated 3DP electrode. The results show that the resistance values of the electrodes are decreased from 0.262 kΩ to 0.187 kΩ in NixCu3x electrode.