24小时热门版块排行榜

返回列表

jeremyme

新虫 (初入文坛)

应助: 0 (幼儿园)
金币: 14.8
帖子: 38
在线: 20小时
虫号: 277043
注册: 2006-09-03
专业: 其他无机非金属材料

[交流] 【求助】求助微孔分布问题已有1人参与

下面是我的样品的数据：

                                       Surface Area Data

MultiPoint BET                                                          1.267e+00 m?g
Langmuir surface area                                                    3.568e+00 m?g
BJH method cumulative adsorption surface area                            2.043e+00 m?g
BJH method cumulative desorption surface area                            2.610e+00 m?g
DH method cumulative adsorption surface area                            2.087e+00 m?g
DH method cumulative desorption surface area                            2.632e+00 m?g
t-method external surface area                                           1.267e+00 m?g

                                       Pore Volume Data

Total pore volume for pores with Diameter
less than 135.46 nm at P/Po = 0.985618                                  1.117e-02 cc/g
BJH method cumulative adsorption pore volume                            1.167e-02 cc/g
BJH method cumulative desorption pore volume                            1.190e-02 cc/g
DH method cumulative adsorption pore volume                            1.133e-02 cc/g
DH method cumulative desorption pore volume                            1.162e-02 cc/g
HK method cumulative pore volume                                        6.785e-04 cc/g
SF method cumulative pore volume                                        5.970e-02 cc/g

                                       Pore Size Data

Average pore Diameter                                                    3.526e+01 nm
BJH method adsorption pore Diameter (Mode Dv(d))                         1.442e+00 nm
BJH method desorption pore Diameter (Mode Dv(d))                         3.817e+00 nm
DH method adsorption pore Diameter (Mode Dv(d))                         1.442e+00 nm
DH method desorption pore Diameter (Mode Dv(d))                         3.817e+00 nm
HK method pore Diameter (Mode)                                           3.965e-01 nm
SF method pore Diameter (Mode)                                           9.597e-01 nm

为什么SF和HK法德孔容相差这么大？为什么有微孔而比表面积这么小？我测的是沸石类物质，有资料说沸石更适合SF法

回复此楼