高温高压下C3N6H6分解产物的研究

姚立德; 禹日成; 李凤英; 刘振兴; 李吉学; 靳常青

doi:10.11858/gywlxb.2004.03.005

高温高压下C3N6H6分解产物的研究

doi: 10.11858/gywlxb.2004.03.005

1.
中国科学院物理研究所，北京 100080；
2.
长春工业大学材料科学与工程学院，吉林长春 130012

详细信息

通讯作者:
姚立德

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出版历程
- 收稿日期: 2003-11-17
- 修回日期: 2004-03-17
- 刊出日期: 2004-09-05

Study of the Products of C3N6H6 Treated at High Temperature and High Pressure

1.
Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China;
2.
Department of Material, Changchun University of Techonology, Changchun 130012, China

More Information

Corresponding author: YAO Li-De

摘要

摘要: 采用高温高压方法分解缩聚三聚氰胺（C3N6H6），得到一种棕黑色粉末。经过X射线粉末衍射分析，产物主要由未完全分解的原料、碳和分解过程中的过渡相组成。透射电镜观察结果显示，过渡相在某一方向具有长周期结构；在扫描电镜下观察形貌，产物为片状组织，且其中有少量气孔；X射线能散结果表明，C∶N3.27∶1（原子比）；此外，进行了红外吸收谱和X射线光电子能谱测试，产物主要键合状态是C(sp2)＝N和C(sp2)N。
- 碳氮晶体 /
- 高温高压 /
- C3N6H6 /
- 键合状态
Abstract: A black-brown powder was synthesized from melamine (C3N6H6) by means of high temperature and high pressure. Based on the analysis of X-ray diffraction patterns, the powder is composed of some un-decomposed raw material, carbon and intermediate phases. The existence of the intermediate phase with long periodicity along one direction is confirmed from transmission electron microscopy observation; Scanning electron microscopy shows many block tissues, in which a few holes exist; The atomic ratio of carbon and nitrogen is determined as 3.27∶1 in the powder from the measurement of Energy Dispersive X-ray Analysis. The high content of C is caused by the existence of carbon decomposed from the raw materials. In addition, the chemical bond states are investigated by Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy. As a result, the main bond styles in the powder are described as C(sp2)=N and C(sp2)N.
- carbon nitride /
- high temperature and high pressure /
- C3N6H6 /
- bond styles

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