| 温度及压力作用下的铁酸锌纳米颗粒结晶过程研究 |
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| 引用本文： | 邹旭,;许娴,;付海川,;张铁民,;彭菊媛,;王英楠,;李子亨.温度及压力作用下的铁酸锌纳米颗粒结晶过程研究[J].海南师范大学学报(自然科学版),2014(2):147-149. |
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| 作者姓名： | 邹旭 ;许娴 ;付海川 ;张铁民 ;彭菊媛 ;王英楠 ;李子亨 |
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| 作者单位： | [1]海南师范大学物电学院,海南海口571158; [2]海南师范大学图书馆,海南海口571158; [3]吉林大学超硬材料国家重点实验室,吉林长春130012 |
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| 基金项目： | 海南省自然科学基金项目（513146） |
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| 摘 要： | 通过溶胶-凝胶法制备铁酸锌前驱物,设置温度范围为200～600℃对前驱物进行3 h灼烧处理;并取1 g前驱物原粉在5 MPa压强下作压片处理,500℃下灼烧3 h.通过XRD,Raman表征样品并观察铁酸锌的结晶过程,研究压强和温度对合成铁酸锌纳米晶的影响.发现样品经5 MPa压强处理后,Raman图反映出铁酸锌的两个常压下不明显的二维振动模式225 cm-1和249 cm-1处峰位特征明显.结果表明随着灼烧温度的升高,铁酸锌粒径增大;对前驱物加压能够促进铁酸锌晶体的形成.
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| 关 键 词： | 纳米 铁酸锌 压强 振动模式 结晶 |
Study of Crystallization of Nano-ZnFe2O4 Under Temperature and Pressure |
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| Institution: | ZOU Xu, XU Xian, FU Haichuan, ZHANG Tiemin, PENG Juyuan, WANG Yingnan, LI Ziheng ( 1. College of Physics ＆ Electronics,Hainan Normal University, Haikou 571158, China; 2. Library of Hainan Normal University, Hainan Normal University, Haikou 571158, China; 3. National Laboratory of Superhard Materials, Jilin University, Changchun 130012, China) |
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| Abstract: | Nano-ZnFe20＋ was prepared by the Sol-Gel method and the process of transformation from precedence to Na- no-ZnFe20＋ crystal influenced by the temperature and pressure was studied by the Raman, X-Ray Diffraction. It was shown that prepared samples have a spinel structure, of which particle sizes are increased with the calcining temperature. Under a pressure of 5MPa, two obvious 2-dimensions vibration modes of ZnFe204 （225cm-1, 249 cm-1）were observed, which were not obvious at ambient pressure. It was found that the process of forming the ZnFe20＋ crystal has been remarkably facilitated. |
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| Keywords: | Nano ZnFe20＋ Pressure Vibration modes Crystallization |
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