Nickel hydroxide nanosheets grown on nickel foam for high performance supercapacitor applications

ABSTRACT

This work reports, the growth of nanobelts-like Ni(OH)₂ on three-dimensional conductive nickel foam by using a simply modified chemical bath deposition method which was used as binder-free battery-type electrode for high-performance supercapacitor. The synthesised battery-type electrode Ni(OH)₂/Ni tested as an electrode for supercapacitor which exhibited superior electrochemical performance. The maximum specific capacitance of 187.46 mAhg⁻¹ demonstrated by Ni(OH)₂/Ni at a scan rate of 10 mVs⁻¹ and 50.29 mAhg⁻¹ at 100 mVs⁻¹ along with 96% capacitance retention after 2000 cycles. The obtained excellent electrochemical performance is due to materials unique nanostructure where thin nanosheets build the nanobelt-like structure.

KEYWORDS:

• Supercapacitor
• nanobelts
• nickel foam
• CBD

Acknowledgments

Author P. E. Lokhande has research funding under ASPIRE scheme by Savitribai Phule Pune University, Pune.

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

This work was supported by the Board of College and University Development, Savitribai Phule Pune University [18TEC000276].