期刊
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
卷 21, 期 9, 页码 2609-2614出版社
SPRINGER
DOI: 10.1007/s10008-016-3489-8
关键词
Nanostructures; Electrochemical techniques; Thin films; Alloys; Electrochemical synthesis
资金
- International Scientific Partnership Program ISPP at King Saud University [0032]
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 A degrees 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/cm(2) for 3 min which when re-annealed at 300 A degrees 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.
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