NDLI: Facile one-step synthesis, structural, optical and electrochemical properties of NiCo$_{2}$O$

Content Provider	Springer Nature Link
Author	Silambarasan, M. Ramesh, P. S. Geetha, D.
Copyright Year	2016
Abstract	Hexagonal and bundle like spinel nickel cobaltite nanostructures has been successfully prepared using two different precipitants such as oxalic acid and potassium hydroxide by facile one-step route followed by calcinated at 400 °C in air, and their structural, optical and electrochemical properties are proposed in this work. The optical band gap of these materials was estimated around 3.88 and 4.07 eV. Room temperature photoluminescence measurements reveal near band emission enhancement in both NiCo$_{2}$O$_{4}$ nanostructures. Then the synthesized samples were utilized for electrochemical performance to modify the glassy carbon electrode (GCE). The electrochemical tests reveal high specific capacitance 996 Fg$^{−1}$ when oxalic acid was used as precipitant, which was nearly 2.1 times higher than that of KOH (precipitant). The enhanced electrochemical performance is due to the porous nature of nanostructures, which provides fast diffusion pathway to electronic and ionic transport on the NiCo$_{2}$O$_{4}$/GCE electrode and electrolyte interfaces. This research work confirms the as-prepared spinel NiCo$_{2}$O$_{4}$ which can serve as advanced electrode material for next generation supercapacitor device. Moreover, the magnetic measurement of these samples exhibits weak ferromagnetic behavior at room temperature with remanent magnetization M$_{r}$ = 0.0005, and 0.0028 emu/g observed at coercivity field H$_{c}$ = 12 kOe, which may be applicable in the field of magnetic storage device.
Starting Page	323
Ending Page	336
Page Count	14
File Format	PDF
ISSN	09574522
Journal	Journal of Materials Science: Materials in Electronics
Volume Number	28
Issue Number	1
e-ISSN	1573482X
Language	English
Publisher	Springer US
Publisher Date	2016-08-16
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Optical and Electronic Materials Characterization and Evaluation of Materials
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Biomaterials Biophysics Condensed Matter Physics Electronic, Optical and Magnetic Materials Bioengineering Electrical and Electronic Engineering Biomedical Engineering

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