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zbllanalyst

铜虫 (小有名气)

应助: 0 (幼儿园)
金币: 70.6
散金: 30
帖子: 132
在线: 21.7小时
虫号: 1203052
注册: 2011-02-14
专业: 无机材料化学

[求助] 如何从BET-BJH计算孔隙率各位大侠

查到的公式需有　V0 ——材料在自然状态下的体积，或称表观体积；
　　V ——材料的绝对密实体积，cm3或m3。
但是从BET-BJH数据中怎么知道呢？

urface Area

  Single point surface area at p/p?= 0.200318148: 1026.8667 m?g

                              BET Surface Area: 988.7512 m?g

                        Langmuir Surface Area: 1305.8643 m?g

                        t-Plot Micropore Area: 861.2186 m?g

                  t-Plot External Surface Area: 127.5326 m?g

  BJH Adsorption cumulative surface area of pores
      between 1.7000 nm and 300.0000 nm width: 58.820 m?g

  BJH Desorption cumulative surface area of pores
      between 1.7000 nm and 300.0000 nm width: 67.3815 m?g
                                                                                                   Pore Volume

  Single point adsorption total pore volume of pores
less than 507.2205 nm width at p/p?= 0.996191391: 0.490382 cm?g

                           t-Plot micropore volume: 0.400372 cm?g

         BJH Adsorption cumulative volume of pores
         between 1.7000 nm and 300.0000 nm width: 0.055626 cm?g

         BJH Desorption cumulative volume of pores
         between 1.7000 nm and 300.0000 nm width: 0.061330 cm?g
                                                                                                Pore Size

  Adsorption average pore width (4V/A by BET): 1.98384 nm

   BJH Adsorption average pore width (4V/A): 3.7828 nm

   BJH Desorption average pore width (4V/A): 3.6408 nm

请教各位大侠，江湖救急啊。需要计算孔隙率。

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