NiO@CuO@Cu bilayered electrode: two-step electrochemical synthesis supercapacitor properties

Ahmed Al-Osta; Bushra Saleh Samer; Vijaykumar V. Jadhav; Umesh T. Nakate; Rajaram S. Mane; Mu Naushad

doi:10.1007/s10008-016-3489-8

NiO@CuO@Cu bilayered electrode: two-step electrochemical synthesis supercapacitor properties

Ahmed Al-Osta, Bushra Saleh Samer, Vijaykumar V. Jadhav, Umesh T. Nakate, Rajaram S. Mane^*, Mu Naushad

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

Abstract

Present work deals with a two-step synthesis and electrochemical properties of nickel oxide @copper oxide@copper (NiO@CuO@Cu) bilayered electrode. In the first step, anodization (40 V for 25 min) of Cu foil has been carried out for forming Cu-hydroxide@Cu which when annealed at 300 °C for 1 h produces CuO@Cu. In the second step, Ni-hydroxide is deposited onto CuO@Cu by applying current density of 0.03 A/cm² for 3 min which when re-annealed at 300 °C for 1 h gives out NiO@CuO@Cu bilayered electrode. Obtained NiO@CuO@Cu bilayered electrode demonstrates separate CuO and NiO phases. The electrochemical properties have obtained using cyclic voltammetry, galvonostatic charge-discharge, and Nyquist plot measurements that reveal an importance of NiO@CuO@Cu as a potential electrode material in the electrochemical supercapacitor application with 58.14, 51.25, and 4.73 F g⁻¹ values in 0.5 M, NaOH, KOH, and Na₂SO₄ electrolytes, respectively, measured at 2 mVs⁻¹ scan rate.

Original language	English
Pages (from-to)	2609-2614
Number of pages	6
Journal	Journal of Solid State Electrochemistry
Volume	21
Issue number	9
DOIs	https://doi.org/10.1007/s10008-016-3489-8
State	Published - 1 Sep 2017
Externally published	Yes

Keywords

Alloys
Electrochemical synthesis
Electrochemical techniques
Nanostructures
Thin films

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10.1007/s10008-016-3489-8

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title = "NiO@CuO@Cu bilayered electrode: two-step electrochemical synthesis supercapacitor properties",

abstract = "Present work deals with a two-step synthesis and electrochemical properties of nickel oxide @copper oxide@copper (NiO@CuO@Cu) bilayered electrode. In the first step, anodization (40 V for 25 min) of Cu foil has been carried out for forming Cu-hydroxide@Cu which when annealed at 300 °C for 1 h produces CuO@Cu. In the second step, Ni-hydroxide is deposited onto CuO@Cu by applying current density of 0.03 A/cm2 for 3 min which when re-annealed at 300 °C for 1 h gives out NiO@CuO@Cu bilayered electrode. Obtained NiO@CuO@Cu bilayered electrode demonstrates separate CuO and NiO phases. The electrochemical properties have obtained using cyclic voltammetry, galvonostatic charge-discharge, and Nyquist plot measurements that reveal an importance of NiO@CuO@Cu as a potential electrode material in the electrochemical supercapacitor application with 58.14, 51.25, and 4.73 F g−1 values in 0.5 M, NaOH, KOH, and Na2SO4 electrolytes, respectively, measured at 2 mVs−1 scan rate.",

keywords = "Alloys, Electrochemical synthesis, Electrochemical techniques, Nanostructures, Thin films",

author = "Ahmed Al-Osta and Samer, {Bushra Saleh} and Jadhav, {Vijaykumar V.} and Nakate, {Umesh T.} and Mane, {Rajaram S.} and Mu Naushad",

note = "Publisher Copyright: {\textcopyright} 2017, Springer-Verlag Berlin Heidelberg.",

year = "2017",

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doi = "10.1007/s10008-016-3489-8",

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TY - JOUR

T1 - NiO@CuO@Cu bilayered electrode

T2 - two-step electrochemical synthesis supercapacitor properties

AU - Al-Osta, Ahmed

AU - Samer, Bushra Saleh

AU - Jadhav, Vijaykumar V.

AU - Nakate, Umesh T.

AU - Mane, Rajaram S.

AU - Naushad, Mu

PY - 2017/9/1

Y1 - 2017/9/1

N2 - Present work deals with a two-step synthesis and electrochemical properties of nickel oxide @copper oxide@copper (NiO@CuO@Cu) bilayered electrode. In the first step, anodization (40 V for 25 min) of Cu foil has been carried out for forming Cu-hydroxide@Cu which when annealed at 300 °C for 1 h produces CuO@Cu. In the second step, Ni-hydroxide is deposited onto CuO@Cu by applying current density of 0.03 A/cm2 for 3 min which when re-annealed at 300 °C for 1 h gives out NiO@CuO@Cu bilayered electrode. Obtained NiO@CuO@Cu bilayered electrode demonstrates separate CuO and NiO phases. The electrochemical properties have obtained using cyclic voltammetry, galvonostatic charge-discharge, and Nyquist plot measurements that reveal an importance of NiO@CuO@Cu as a potential electrode material in the electrochemical supercapacitor application with 58.14, 51.25, and 4.73 F g−1 values in 0.5 M, NaOH, KOH, and Na2SO4 electrolytes, respectively, measured at 2 mVs−1 scan rate.

AB - Present work deals with a two-step synthesis and electrochemical properties of nickel oxide @copper oxide@copper (NiO@CuO@Cu) bilayered electrode. In the first step, anodization (40 V for 25 min) of Cu foil has been carried out for forming Cu-hydroxide@Cu which when annealed at 300 °C for 1 h produces CuO@Cu. In the second step, Ni-hydroxide is deposited onto CuO@Cu by applying current density of 0.03 A/cm2 for 3 min which when re-annealed at 300 °C for 1 h gives out NiO@CuO@Cu bilayered electrode. Obtained NiO@CuO@Cu bilayered electrode demonstrates separate CuO and NiO phases. The electrochemical properties have obtained using cyclic voltammetry, galvonostatic charge-discharge, and Nyquist plot measurements that reveal an importance of NiO@CuO@Cu as a potential electrode material in the electrochemical supercapacitor application with 58.14, 51.25, and 4.73 F g−1 values in 0.5 M, NaOH, KOH, and Na2SO4 electrolytes, respectively, measured at 2 mVs−1 scan rate.

KW - Alloys

KW - Electrochemical synthesis

KW - Electrochemical techniques

KW - Nanostructures

KW - Thin films

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DO - 10.1007/s10008-016-3489-8

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JO - Journal of Solid State Electrochemistry

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ER -

NiO@CuO@Cu bilayered electrode: two-step electrochemical synthesis supercapacitor properties

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