氙常温吸附性能与多孔碳材料孔径分布关联分析

Analysis on adsorption of xenon in micro pore size of porous carbon material

以多孔碳材料为研究对象,测量分析了材料孔径分布和氙吸附性能,讨论了氙吸附性能与材料孔径分布之间的关联关系。结果表明,多孔材料的微孔孔容与其比表面积呈正相关;大气氙常温吸附集中于多孔材料的微孔孔道内,氙吸附能力与材料中孔无显著关联;氙常温吸附能力与碳材料5.0~7.0?的微孔孔体积相关性较显著,大于10.0?微孔孔容关联较小。

In this paper,some different materials with micro-pore are analyzed and their micro-pore size distributions are also described precisely firstly.Secondly,the adsorption performance of ambient atmospheric xenon are tested in the same size stainless column within different porous materials.And then,the comparisons of the results between micro-pore size distributions and adsorption performance of ambient atmospheric xenon are discussed and studied in detail.As a consequence,micro-pore volume of the material is the main parameter for specific surface.In room temperature,the xenon adsorption also accumulate in micro-pore but in mesopore,it demonstrates that the positive correlation between the adsorption performance of ambient atmospheric xenon and the micro-pore volume is obtained obviously.Furthermore,the adsorption of ambient atmospheric xenon in room temperature usually occurs in the micro-pore size range with 5.0—7.0Å,but not to adsorb in the micro-pore bigger than 10.0Å.