Вышедшие номера
Synthesis and Characterization of High-Quality Polycrystalline Sample NiV2O6 by Solid-State Reaction Technique
Полная версия: 10.1134/S1063783420060049
Atikur Rahman M.1, Akter M.R.2, Romana Khatun M.2, Sultana R.3, Razzaque Sarker M.A.2
1Department of Physics, Pabna University of Science and Technology, Pabn, Bangladesh
2Department of Physics, Rajshahi University, Rajshah, Bangladesh
3Bangladesh Council of Scientific and Industrial Research, Dhaka University, Bangladesh
Email: atik0707phy@gmail.com
Поступила в редакцию: 11 ноября 2019 г.
Выставление онлайн: 25 марта 2020 г.

Employing the solid-state reaction route, good quality polycrystalline sample NiV2O6 is prepared that has effective application in rechargeable Li-ion batteries. The raw materials NiO and V2O5 (purity >99%) were used for the fabrication of NiV2O6. The phase formation and thermal stability of this sample were measured by thermogravimetric analyzer. The micro-structural feature of this sample was measured by scanning electron microscopy (SEM). The SEM images ensured that the product NiV2O6 is very uniform and well-separated and consists of large grain size of about 1-5 μm. The crystal structure and bonding characteristics of NiV2O6 were obtained by XRD diffractometer and FTIR spectroscopy. The X-ray diffraction data revealed the triclinic structure of NiV2O6 with space group P-1 and lattice parameters: a=7.162 Angstrem, b=8.816 Angstrem, c=4.789 Angstrem, and axial angles alpha=90.13o, beta=93.78o, and γ=101.72o. The temperature-dependent electrical resistivity of NiV2O6 was measured by two-probe method which ensured the semiconducting nature of this phase. The electronic and optical properties were investigated by impedance analyzer and UV-Visible spectrophotometer. The calculated optical band gap of NiV2O6 is found to be 2.38 eV. Keywords: crystal morphology, XRD, SEM, FTIR, electronic properties, optical properties.

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