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=90.13^o, beta=93.78^o, and γ=101.72^o. 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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Дата начала обработки статистических данных - 27 января 2016 г.