论文部分内容阅读
以低温氮吸附法为手段， 对α磷酸锆（αＺｒＰ）类系列层柱化合物的孔隙结构特征进行了研究。结果表明，此类物质的孔隙结构特征比较相似， 均系过渡孔发达物质。首次提出了Ｄ点法计算比表面积的方法， 并采用三参数ＢＥＴ 方程、平行板等效模型和Ｄ点法分别计算了层柱化合物的比表面积， 得到了一致的结果， 这说明引用的模型和方法是可行的和合理的， 结果是可信的。另外通过对影响孔隙结构因素的分析， 得出层柱化合物比表面积和孔容与各自的层间距和柱密度的大小密切相关， 同时也与层离和层交联的发生有关。
The pore structure of α-ZrP (αZrP) series pillared compounds was studied by means of low temperature nitrogen adsorption. The results show that the pore structure characteristics of these materials are relatively similar, all of which are transition pore developed materials. For the first time, the method of calculating the specific surface area with point D method was proposed. The three-parameter BET equation, the parallel plate equivalent model and the D-point method were respectively used to calculate the specific surface area of the pillared column compound. The consistent results were obtained. The method is feasible and reasonable, the result is credible. In addition, through the analysis of the factors affecting the pore structure, it is concluded that the specific surface area and pore volume of the layered column compound are closely related to the respective layer spacing and column density, and also to the occurrence of the delamination and layer crosslinking.