中文摘要：

煤 nanopore 结构是在在煤理解吸收气体的存储和迁居的一个重要因素。为学习煤 nanopore 结构的一个新方法被建议。这个想法基于原子力量显微镜学的 nano 水平分辨率，它能被采用清楚地观察煤 nanopores 的结构的特征，进行量的三维的大小并且获得结构的参数。分析结果证明煤 nanopores 主要是变形毛孔和分子间的毛孔。变形毛孔通常圆、椭圆，增加有煤化度的份量上。分子间的毛孔的形式显著地变化。低等级的煤的平均毛孔尺寸比高等级的煤大，并且当煤等级增加，分子间的毛孔的数字减少。节分析有效地描绘煤毛孔微观结构，忍受分析是一条重要途径测量 microporosity，和谷物分析能被采用学习毛孔尺寸分发。原子力量显微镜学是为煤毛孔微观结构和煤床甲烷吸附机制的深入的研究的一个工具。

英文摘要：

Coal nanopore structure is an important factor in understanding the storage and migration of absorbed gas in coal. A new method for studying coal nanopore structures is proposed. This idea is based on the nano-level resolution of atomic force microscopy, which can be employed to observe the structural features of coal nanopores clearly, conduct quantitative three-dimensional meas- urements and obtain structural parameters. Analysis results show that coal nanopores are mainly metamorphic pores and intermo- lecular pores. The metamorphic pores are commonly rounded and elliptical, increasing quantitatively with the coalification degree The forms of intermolecular pores change markedly. The average pore size of low-rank coal is bigger than high-rank coal, and the number of intermolecular pores decreases as the coal rank increases. Section analysis effectively characterizes the coal pore microstructure, bearing analysis is a vital approach to measure microporosity, and grain analysis can be employed to study the pore size distribution. Atomic force microscopy is a tool for the in-depth research of coal pore microstructure and the coal-bed methane adsorption mechanism.