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墨迹丫头

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注册: 2013-05-05
专业: 无机纳米化学

[求助] BET 孔径分布及吸附脱附等温线分析求教！已有2人参与

第一次测BET，拿到结果不会处理数据，不知用哪几组数据做孔径分布图和吸附脱附等温线，还有如何从吸附脱附曲线中判断孔类型，求教！

（1） BJH Pore Size Distribution  Adsorption
   Radius    Pore Volume Pore Surf    dV(r)       dS(r)    dV(logr)    dS(logr)
                              Area
   ?       cc/g       m?g       cc/?g       m??g       cc/g       cc/g

   15.4258       1.3840e-03 1.7943e+00 8.3160e-04 1.0782e+00 2.9509e-02 3.8259e+01
   17.1707       2.5836e-03 3.1916e+00 6.5707e-04 7.6534e-01 2.5954e-02 3.0231e+01
   19.2565       3.4948e-03 4.1380e+00 3.8845e-04 4.0345e-01 1.7202e-02 1.7867e+01
   21.8130       5.0861e-03 5.5970e+00 5.7501e-04 5.2722e-01 2.8842e-02 2.6445e+01
   24.7394       6.7660e-03 6.9552e+00 5.4452e-04 4.4021e-01 3.0978e-02 2.5044e+01
   28.2983       8.2432e-03 7.9992e+00 3.6629e-04 2.5887e-01 2.3827e-02 1.6840e+01
   32.9099       9.9941e-03 9.0632e+00 3.3734e-04 2.0501e-01 2.5510e-02 1.5503e+01
   39.2294       1.2168e-02 1.0172e+01 2.9191e-04 1.4882e-01 2.6288e-02 1.3402e+01
   48.3508       1.4374e-02 1.1084e+01 2.0437e-04 8.4537e-02 2.2658e-02 9.3724e+00
   62.5888       1.8000e-02 1.2243e+01 2.0505e-04 6.5523e-02 2.9353e-02 9.3798e+00
   87.7780       2.1827e-02 1.3115e+01 1.1705e-04 2.6670e-02 2.3382e-02 5.3275e+00
241.6240       3.2177e-02 1.3972e+01 3.7637e-05 3.1154e-03 1.8442e-02 1.5265e+00
697.9636       4.1148e-02 1.4229e+01 1.4068e-05 4.0310e-04 2.0937e-02 5.9995e-01

（2） Average pore Radius = 4.68283e+01
（3） Multi-Point BET
      Relative                   Volume @ STP             1 / [ W((Po/P) - 1) ]
         Pressure
            P/Po                         cc/g

            4.91683e-02                   2.7935                         1.4811e+01
            9.94382e-02                   3.4416                         2.5670e+01
            1.48852e-01                   4.0094                         3.4899e+01
            2.01170e-01                   4.5939                         4.3861e+01
            2.52383e-01                   5.1876                         5.2067e+01
            3.03231e-01                   5.7449                         6.0612e+01
（4） Isotherm
                  Relative                                     Volume @ STP
                  Pressure
                                                                     cc/g

                     4.91683e-02                                     2.7935
                     9.94382e-02                                     3.4416
                     1.48852e-01                                     4.0094
                     2.01170e-01                                     4.5939
                     2.52383e-01                                     5.1876
                     3.03231e-01                                     5.7449
                     3.55078e-01                                     6.3016
                     4.04281e-01                                     6.9080
                     4.51768e-01                                     7.4617
                     5.04154e-01                                     7.9666
                     5.55703e-01                                     8.6892
                     6.02893e-01                                     9.4387
                     6.52288e-01                                     10.1517
                     7.01207e-01                                     10.9876
                     7.52341e-01                                     12.0290
                     8.02457e-01                                     13.1303
                     8.52498e-01                                     14.9083
                     9.00318e-01                                     16.8815
                     9.73956e-01                                     22.9283
                     9.90481e-01                                     28.4399
                     9.46047e-01                                     21.1493
                     8.90273e-01                                     18.4502
                     8.39621e-01                                     17.6912
                     7.89587e-01                                     16.3500
                     7.46261e-01                                     15.4645
                     6.99859e-01                                     14.8802
                     6.52883e-01                                     14.2157
                     6.02876e-01                                     13.5537
                     5.52162e-01                                     12.8584
                     4.97443e-01                                     12.2179
                     4.44209e-01                                     11.2497
                     4.01426e-01                                     10.5394
                     3.53141e-01                                     9.7020
                     2.98998e-01                                     8.4774
                     2.51954e-01                                     7.4426
                     1.96513e-01                                     6.2435
                     1.47892e-01                                     5.2458
                     9.81536e-02                                     4.2068
                     4.23133e-02                                     2.9506

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