Selectively Nanocubes Formation of Tungsten Oxide (WO3)

Tugay Üstün, V. Eskizeybek, A. Avci
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Abstract

In this study, tungsten oxide (WO3) nanoparticles were produced with a preferential nanocube morphology by using selenium (Se) and lanthanum (La) catalysts in de-ionized water by arc discharge method. Se-La catalysts were added to the tungsten (W) electrodes during the production of nanocubes and the structural and morphological features of these nanocubes were investigated. The nanocube structures were imaged with scanning electron microscopy (SEM) and permeable electron microscopy (TEM), and the dimensions of the nanocubes were between 10-50 nm. X-ray diffraction (XRD) results revealed that the synthesized nanostructures exhibited a monoclinic WO3 crystal structure. The arc discharge is a simple, inexpensive and low-cost method and the production of WO3 nanocubes at a high purity rate has been successfully achieved with this method.
选择性形成氧化钨(WO3)纳米立方
在本研究中,采用电弧放电法在去离子水中以硒(Se)和镧(La)为催化剂制备了具有优先纳米立方形貌的氧化钨(WO3)纳米颗粒。在制备纳米立方体的过程中,在钨电极上加入硒-镧催化剂,研究了纳米立方体的结构和形态特征。利用扫描电镜(SEM)和透射电镜(TEM)对纳米立方结构进行了成像,纳米立方的尺寸在10 ~ 50 nm之间。x射线衍射(XRD)结果表明,合成的纳米结构为单斜晶结构。电弧放电是一种简单、廉价、低成本的方法,已成功地生产出高纯度的WO3纳米立方。
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