Abstract
Developing efficient electrochemically active nanostructures from Earth-abundant elements has gained significant interest in recent years. Among different transition metals, nickel and copper are abundant electrocatalysts for energy-storage applications. Nickel–copper selenide (NiCuSe2) nanostructures were prepared on a stainless-steel mesh with a cost-effective, simple, and versatile electrodeposition method for supercapacitor applications. The change effect in the bath concentration of nickel and copper altered the structural and electrochemical properties of NiCuSe2 electrode. X-ray diffraction (XRD) patterns confirmed the pure phase of ternary NiCuSe2 thin films with a cubic crystal structure. The surface morphology of NiCuSe2 was tuned by nickel and copper from spherical porous nanoflowers, nanoplates, nanocubes, and nanosphere-like nanostructures deposited on the stainless-steel mesh. The electrochemical performance of the electrodeposited NiCuSe2 was investigated in alkaline 1 M KOH electrolyte. The synergetic effect of bimetallic nickel and copper with the selenide electrode showed superior specific capacity of about 42.46 mAh g−1 at 10 mV s−1 along with reasonable cycling stability.
Original language | English |
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Article number | 1698 |
Pages (from-to) | 1-8 |
Number of pages | 8 |
Journal | Metals |
Volume | 10 |
Issue number | 12 |
DOIs | |
Publication status | Published - 2020 Dec |
Bibliographical note
Funding Information:H.M.Y. and S.K.S. are thankful to the Dongguk University for supporting research in 2018-22. V.G.P. and H.-H.P. would like to thank that this work was supported by the National Research Foundation of Korea (NRF), grant funded by the Korean government (MSIT; No. 2020R1A5A1019131).
Funding Information:
Acknowledgments: H.M.Y. and S.K.S. are thankful to the Dongguk University for supporting research in 2018-22. V.G.P. and H.-H.P. would like to thank that this work was supported by the National Research Foundation of Korea (NRF), grant funded by the Korean government (MSIT; No. 2020R1A5A1019131).
Publisher Copyright:
© 2020 by the authors. Licensee MDPI, Basel, Switzerland.
All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Metals and Alloys