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首页> 外文期刊>Journal of Materials Science and Chemical Engineering >The Effect of Replacement of Zn 2+ Cation with Ni 2+ Cation on the Structural Properties of Ba sub>2Zn sub>1–x Ni sub>xWO sub>6 Double Perovskite Oxides (X = 0, 0.25, 0.50, 0.75, 1)
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The Effect of Replacement of Zn 2+ Cation with Ni 2+ Cation on the Structural Properties of Ba sub>2Zn sub>1–x Ni sub>xWO sub>6 Double Perovskite Oxides (X = 0, 0.25, 0.50, 0.75, 1)

机译:Zn 2+阳离子取代Ni 2+阳离子对Ba sub> 2Zn sub> 1–x Ni sub> xWO sub> 6双钙钛矿氧化物的结构性质的影响(X = 0,0.25,0.50,0.75,1 )

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摘要

The Ba2Zn1-xNixWO6 double perovskite oxides were synthesized using solid state reaction method. The effect of replacement of Zn2+ with Ni2+ cation on the structural properties was investigated by X-ray diffraction (XRD) at room temperature. From the X-ray diffraction and by means of standard Rietiveld method, the samples showed the same cubic crystal structure with (Fm-3m) space group and the crystallite size ranging from 71.91 nm to 148.71 nm. The unit cell volume was found to decrease as a result of the replacement, while there was no significant difference in the value of tolerance factor of the samples. This is may be due to the convergence of ionic radii of Ni2+ and Zn2+ cations. The Fourier Transform Infrared Spectroscopy (FTIR) was performed for the samples and the resultant characteristic absorption bands confirmed the double perovskite structure.
机译:采用固相反应法合成了Ba2Zn1-xNixWO6双钙钛矿氧化物。在室温下通过X射线衍射(XRD)研究了用Ni 2+阳离子代替Zn 2+对结构性能的影响。通过X射线衍射和通过标准Rietiveld方法,样品显示具有(Fm-3m)空间群的相同立方晶体结构,并且微晶尺寸为71.91nm至148.71nm。发现单位细胞体积由于更换而减少,而样品的耐受因子值没有显着差异。这可能是由于Ni2 +和Zn2 +阳离子的离子半径收敛所致。对样品进行了傅里叶变换红外光谱(FTIR),得到的特征吸收带证实了钙钛矿的双重结构。

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