拉曼光谱在煤大分子结构表征中的应用 程南南.pdf

: .
煤炭学报
光能量以及信号收集时间，都会对拉曼光谱产生影响，并且对拉曼光谱进行分峰拟合时要充
分考虑样品煤级以及谱峰所蕴含的结构信息。（ 2）温度对煤中有机质结构演化的影响分为石
墨化前拉曼光谱无规律性变化和高温石墨化过程中拉曼无序性参数逐渐降低两阶段特征。常
温加压条件下拉曼光谱的特征峰会向高峰位出现线性移动，这与拉曼光谱对应力的响应变化
规律一致，并且构造应力产生的结构缺陷会降低煤系石墨的结构有序度。（3）拉曼光谱无序
性参数与煤化程度之间并无严格对应关系，综合前人研究成果认为，这可能与煤大分子结构
有序性的演化和化学结构的演化并不完全同步以及构造应力通过引入结构缺陷造成结构无序
性增加等因素密切相关。（4）拉曼光谱在煤结构表征中的其它应用包括计算芳香层片的大小、
特殊峰的指示意义以及二阶拉曼光谱表征煤结构信息等，但在实际使用过程中还需十分谨慎。
关键词：拉曼光谱，煤，大分子结构演化，煤化程度
中图分类号：TQ531
Application of Raman spectroscopy in characterization of coal macromolecular
structure
CHENG Nan-nan1,2，SHI Meng-yan1，HOU Quan-lin3，PAN Jie-nan1，HAN Yu-zhen4
( of Resources and Environment, Henan Polytechnic University, Jiaozuo 454003, China; Laboratory of Deep-Earth Dynamics of Ministry of
Natural Resources, Institute of Geology, Chinese Academy of Geological Sciences, Beijing 100037, China; of Earth and Planetary Sciences, Uni-
versity of Chinese Academy of Sciences, Beijing 100049, China; of Science and Technology of Shanxi Province, Taiyuan 030000, China)
Abstract：Coals are a special kind of organic rocks, which are mainly composed of macromolecule polymer.
Accurately describing and quantitatively characterizing the structural characteristics of coal macromolecules can
provide important information for discussing the evolution mechanism of coal structure. Raman spectroscopy is a
fast and non-destruction approach to characterize carbonaceous materials, which has been widely used in the
characterization of coal macromolecular structures. The research progress of Rama