Electrochemically synthesized nanoflowers to nanosphere-like nicuse2 thin films for efficient supercapacitor application

Surendra K. Shinde, Dae Young Kim, Vinayak G. Parale, Hyung Ho Park, Hemraj M. Yadav

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

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 languageEnglish
Article number1698
Pages (from-to)1-8
Number of pages8
JournalMetals
Volume10
Issue number12
DOIs
Publication statusPublished - 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

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