Molten salt synthesis of Zn₂SnO₄ micro crystals with regular octahedral morphology

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• 作者：Xiangchun Liu ; Junhui Li ; Feng Gao…
• 刊名：Journal of Materials Science: Materials in Electronics
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：28
• 期：4
• 页码：3860-3864
• 全文大小：
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Optical and Electronic Materials; Characterization and Evaluation of Materials;
• 出版者：Springer US
• ISSN：1573-482X
• 卷排序：28

文摘

Inverse cubic spinel Zn₂SnO₄ micro crystals with regular octahedral morphology were prepared by the molten salt method. The influences of the molten salt system and calcination temperature on Zn₂SnO₄ crystalline phase composition and particle morphology were studied. The results show that the molten salt constituent has an important effect on the end products, and high pure Zn₂SnO₄ micro crystals with regular octahedral morphology can be synthesized at about 900 °C in KCl-ZnCl₂ salt system. The formation of octahedron Zn₂SnO₄ microstructures might result from the crystal growth mechanism “dissolution–diffusion–crystallization–dissolution–recrystallization”. Compared to the conventional solid phase reaction process, the formation temperature of pure octahedron Zn₂SnO₄ micro crystals of average grain size of about 2 μm, via the molten salt method is decreased for more than 200 °C.