| 高温高压条件下富硼固体B7O的合成与表征 |
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| 引用本文： | 刘晓旸,赵旭东,侯为民,苏文辉.高温高压条件下富硼固体B7O的合成与表征[J].高压物理学报,1995,9(2). |
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| 作者姓名： | 刘晓旸 赵旭东 侯为民 苏文辉 |
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| 作者单位： | 吉林大学物理系，中国科学院国际材料物理中心 |
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| 摘 要： | 在高温高压条件下采用过量氧化锌氧化单质用的方法合成了富硼固体以B7O，并利用X射线衍射、X射线光电子能谱、红外光谱、二次离子质谱等测试手段，对合成产物进行了表征。测试结果表明，组成富硼固体B7O的基本结构单元是十二个硼原子组成的正二十面体，氧原子存在于这些结构单元的间隙之间，并与结构单元中的硼原子互相成键。本文所采用的合成方法较其它方法可以更方便地得到结晶情况很好的单相富硼固体B7O。
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| 关 键 词： | 高压合成 富硼固体 B7O |
| 收稿时间： | 1994-02-01; |
SYNTHESISANDCHARACTERIZATION OF BORON SUBOXIDE B_7OUNDER HIGHPRESSURE AND HIGHTEMPERATURE |
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| LIU Xiao-Yang,ZHAO Xu-Dong,HOU Wei-Min,SU Wen-Hui.SYNTHESISANDCHARACTERIZATION OF BORON SUBOXIDE B_7OUNDER HIGHPRESSURE AND HIGHTEMPERATURE[J].Chinese Journal of High Pressure Physics,1995,9(2). |
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| Authors: | LIU Xiao-Yang ZHAO Xu-Dong HOU Wei-Min SU Wen-Hui |
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| Institution: | 1. Physics Departement, Jilin University, Changchun 130023, China;2. International Center for Materials Physicss, Academia Sinica, Shenyang 110015, China |
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| Abstract: | The red-brown boron-rich solid B7O has been synthesized by means of oxidation of boron with zinc oxide under conditions of 3.5 GPa and 1 200 ℃ for 30 min. The product after leached in hydrochroric acid has been characterized by XRD, XPS, IR, SIMS and chemical analysis. The results of SIMS and chemical analysis show that the chemical formula is B7O. The results of X-ray powder diffraction indicates that the crystal structure of the sample can be classified as hexagonal symmetry with lattice constants of α=0.543 5 nm and c=1.2415 nm. |
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| Keywords: | high pressure synthesis boron-rich solids B_7O |
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