| 石墨相C_3N_4压致结构相变研究 |
| |
| 引用本文： | 李雪飞,马艳梅,沈龙海,张剑,类伟巍,刘伟,邹广田. 石墨相C_3N_4压致结构相变研究[J]. 高压物理学报, 2010, 24(1) |
| |
| 作者姓名： | 李雪飞 马艳梅 沈龙海 张剑 类伟巍 刘伟 邹广田 |
| |
| 作者单位： | 1. 吉林师范大学教育技术与传播学院,吉林四平,136000;吉林大学超硬材料国家重点实验室,吉林长春,130012
2. 吉林大学超硬材料国家重点实验室,吉林长春,130012 |
| |
| 基金项目： | 国家自然科学基金，高等学校博士学科点专项科研基金，吉林省科技发展计划项目，吉林师范大学博士启动项目 |
| |
| 摘 要： | 将有机物三聚氰胺(C3N6H6)高温热解,得到了石墨相C3N4(g-C3N4)。利用同步辐射X射线衍射和金刚石对顶砧(DAC)高压技术,在室温下对g-C3N4进行了结构变化研究。实验结果表明,在16.57 GPa压力范围内,g-C3N4发生了压致结构相变,在6.6 GPa压力下,晶体结构由原来的石墨相转变为三斜相。使用Birch-Murnagha等温状态方程拟合出了样品的等温状态方程。
|
| 关 键 词： | g-C3N4 结构相变 同步辐射 高压 |
| 收稿时间： | 2008-12-12; |
Study on the Pressure-Induced Phase Transition of g-C3N4 |
| |
| LI Xue-Fei,MA Yan-Mei,SHEN Long-Hai,ZHANG Jian,LEI Wei-Wei,LIU Wei,ZOU Guang-Tian. Study on the Pressure-Induced Phase Transition of g-C3N4[J]. Chinese Journal of High Pressure Physics, 2010, 24(1) |
| |
| Authors: | LI Xue-Fei MA Yan-Mei SHEN Long-Hai ZHANG Jian LEI Wei-Wei LIU Wei ZOU Guang-Tian |
| |
| Affiliation: | 1. School of Education Technology and Communications, Jilin Normal University, Siping 136000, China;2. National Laboratory of Superhard Materials, Jilin University, Changchun 130012, China |
| |
| Abstract: | Graphitic carbon nitride (g-C3N4) is prepared by pyrolysis of melamine. At room temperature, the structure change of the g-C3N4 is investigdted by in situ high pressure angle-dispersive X-ray diffraction with a synchrotron radiation source, which is in a diamond-anvil cell. The results show that structural phase transition occurred in g-C3N4 within 16.57 GPa pressure range. The crystal structure changes from graphitic to triclinic structure at 6.6 GPa. The isothermal equation of the state of C3N4 is fitted using the Birch-Murnagha equation of state. |
| |
| Keywords: | g-C3N4 |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《高压物理学报》浏览原始摘要信息 |
|
点击此处可从《高压物理学报》下载免费的PDF全文 |
|
