Structural, Optical, Electrical, and Photocatalytic Properties of Nickel Cobaltite (NiCo2O4) Nanocomposite Fabricated by a Facile Microplasma Electrochemical Process

This study reports the facile atmospheric pressure microplasma-assisted synthesis of NiCo 2 O 4 nanocomposite with the cubic spinel phase. The prepared samples were investigated in terms of their structural, morphological, compositional, electrical and optical properties. It was observed that the sp...

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Bibliographic Details
Published inJournal of electronic materials Vol. 50; no. 2; pp. 629 - 639
Main Authors Shafique, M., Iqbal, Tariq, Khan, M. A., Naeem, Muhammad, Ahmed, Ishaq, Ahmad, Pervaiz, Mahmood, Hasan
Format Journal Article
LanguageEnglish
Published New York Springer US 01.02.2021
Springer Nature B.V
Subjects
Aqueous solutions
Blue shift
Catalytic activity
Characterization and Evaluation of Materials
Chemistry and Materials Science
Electrical properties
Electronics and Microelectronics
Energy storage
Instrumentation
Materials Science
Microplasmas
Nanocomposites
Nanostructure
Nanotechnology devices
Nickel compounds
Optical and Electronic Materials
Optical properties
Original Research Article
Photocatalysis
Raman spectra
Rhodamine
Solid State Physics
Wastewater
microplasma
photocatalytic activity
nanostructures
Nickel cobaltite (NiCo
O
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Summary:This study reports the facile atmospheric pressure microplasma-assisted synthesis of NiCo 2 O 4 nanocomposite with the cubic spinel phase. The prepared samples were investigated in terms of their structural, morphological, compositional, electrical and optical properties. It was observed that the spherically shaped NiCo 2 O 4 nanostructures have a face-centered cubic (fcc) crystalline structure with a space group of Fd-3 m. Raman spectra revealed a blue shift in the A1g and E2g modes which can be attributed to the nano-sized effect of NiCo 2 O 4 . Electrical properties showed a semiconducting behavior which can be explained by the nearest-neighbor hopping (NNH) process. The photocatalytic activity against rhodamine B dye aqueous solution was studied, and significant degradation was achieved after 120 min of solar irradiation. This understanding will be helpful for the fabrication and design of NiCo 2 O 4 nanostructure-based wastewater purification and energy storage nanodevices.
ISSN:0361-5235
1543-186X
DOI:10.1007/s11664-020-08573-1