| 硼酸镁（Mg2B2O5）晶须的制备及表征 |
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| 引用本文： | 王俐聪,张旖,张雨山,黄西平,王玉琪.硼酸镁（Mg2B2O5）晶须的制备及表征[J].化学工业与工程,2009,26(6):475-478. |
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| 作者姓名： | 王俐聪 张旖 张雨山 黄西平 王玉琪 |
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| 作者单位： | 国家海洋局天津海水淡化与综合利用研究所,天津,300192 |
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| 基金项目： | 中央级公益性科研院所基本科研业务费专项资金项目，天津市科技发展计划项目 |
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| 摘 要： | 以六水氯化镁、硼酸、氢氧化钠和氯化钠为原料,采用高温助熔剂工艺制备了硼酸镁（Mg2B2O5）晶须。利用X射线衍射（XRD）、扫描电镜（SEM）、透射电镜（TEM）和X射线光电子能谱（XPS）对制备的产品进行了表征。XRD物相分析结果表明制备的产品为单一相三斜结构硼酸镁（Mg2B2O5）。XPS表明制备的产品中Mg、B和O的摩尔比为1.000∶0.996∶2.498,且价态分别为＋2价、＋3价和-2价,与Mg2B2O5化学计量比以及价态一致。SEM和TEM显微图像表明合成的产品为纤维状,且长径比大于10,并对生长机理进行了初步探讨。
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| 关 键 词： | 硼酸镁晶须 助熔剂工艺 生长机理 |
Preparation and Characterization of Magnesium Borate(Mg2B2O5)Whisker |
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| WANG Li-cong,ZHANG Yi,ZHANG Yu-shan,HUANG Xi-ping,WANG Yu-qi.Preparation and Characterization of Magnesium Borate(Mg2B2O5)Whisker[J].Chemical Industry and Engineering,2009,26(6):475-478. |
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| Authors: | WANG Li-cong ZHANG Yi ZHANG Yu-shan HUANG Xi-ping WANG Yu-qi |
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| Affiliation: | (Institute of Tianjin Seawater Desalination and Multipurpose Utilization State Oceanic Administration, Tianjin 300192, China) |
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| Abstract: | Magnesium borate（Mg2B2O5） whisker was successfully synthesized via high temperature flux method using magnesium chloride, boric acid, sodium hydroxide and sodium chloride as raw materials. The prepared product was characterized by X-ray diffraction （XRD）, scanning electron microscopy （SEM）, transmission electron microscope（TEM） and X-ray photoelectron spectroscopy（XPS）. The results showed that the prepared sample had triclinic structure and consisted of whisker-like particles with the proportion of length to diameter beyond 10. XPS results confirmed the molar ratio of each atom agreed with the stoichiometric composition of Mg2B2O5. Finally, the growth mechanism was briefly discussed. |
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| Keywords: | magnesium borate whisker flux technology growth mechanism |
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