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iiok2银虫 (小有名气)
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催化剂的孔分布问题
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前几天测了载体的比表面积和孔径，孔体积。这些数据都有，请问能不能看出孔的分布情况？也就是不同粒度所占的含量？老师测的，现在想知道孔的分布趋势。我是看不出来，如下图 请高手帮忙解图 Langmuir Surface Area Report Langmuir Surface Area: 453.9472 ? 9.0294 m?g Slope: 0.009590 ? 0.000191 Y-Intercept: 0.000321 ? 0.000026 b: 0.033474 VM: 104.278989 cm?g STP Correlation Coefficient: 9.988152e-01 Molecular Cross-section: 0.1620 nm? Relative Vol 1/ Pressure Adsorbed [VA*(Po/P)] (cm?g STP) 0.061203461 69.9198 0.000875 0.076438884 73.0338 0.001047 0.099980360 77.1282 0.001296 0.120028410 80.1913 0.001497 0.140718207 83.0912 0.001694 0.160421502 85.6777 0.001872 0.180591294 88.1984 0.002048 0.200861251 90.6775 0.002215 ASAP 2010 V5.02 H Unit 1 Serial#2806 Page 8 Sample: SiO22 Operator: Submitter: File Name: D:\WXK\000-120.SMP Started: 4/11/2008 19:26:06PM Analysis Adsorptive: N2 Completed: 4/12/2008 7:40:47PM Analysis Bath: 77.34 K Report Time: 4/13/2008 12:46:27PM Thermal Correction: No Sample Weight: 0.2989 g Smoothed Pressures: No Warm Freespace: 29.5845 cm? Cold Freespace: 93.4152 cm? MEASURED Equil. Interval: 10 secs Low Pressure Dose: None ____________________________________________________ t-Plot Report Micropore Volume: 0.011013 cm?g Micropore Area: 32.8747 m?g External Surface Area: 295.2658 m?g Slope: 19.088814 ? 0.182405 Y-Intercept: 7.119626 ? 0.754566 Correlation Coefficient: 9.99772e-01 Thickness Range: 0.3500 to 0.5000 nm t = [13.9900 / (0.0340 - log(P/Po))] 0.5000 Surface Area Correction Factor: 1.00 Density Conversion Factor: 0.001547 Total Surface Area (by BET): 328.1405 Relative Statistical Vol Adsorbed Pressure Thickness (nm) (cm?g) 0.009996677 0.2623 50.1161 0.029474256 0.2990 61.0247 0.061203461 0.3349 69.9198 0.076438884 0.3487 73.0338 0.099980360 0.3678 77.1282 0.120028410 0.3828 80.1913 0.140718207 0.3974 83.0912 0.160421502 0.4109 85.6777 0.180591294 0.4242 88.1984 0.200861251 0.4374 90.6775 0.246694826 0.4669 96.0588 0.303609032 0.5036 102.6713 0.349749915 0.5342 108.2541 0.400130306 0.5692 114.6693 0.449692175 0.6059 121.6322 0.500031343 0.6462 129.5299 0.549440662 0.6897 138.6260 0.599123035 0.7385 149.8953 0.649057557 0.7943 164.2829 ASAP 2010 V5.02 H Unit 1 Serial # 2806 Page 10 Sample: SiO22 Operator: Submitter: File Name: D:\WXK\000-120.SMP Started: 4/11/2008 19:26:06PM Analysis Adsorptive: N2 Completed: 4/12/2008 7:40:47PM Analysis Bath: 77.34 K Report Time: 4/13/2008 12:46:27PM Thermal Correction: No Sample Weight: 0.2989 g Smoothed Pressures: No Warm Freespace: 29.5845 cm? Cold Freespace: 93.4152 cm? MEASURED Equil. Interval: 10 secs Low Pressure Dose: None ____________________________________________________ BJH Adsorption Pore Distribution Report t = 3.5400 x [-5.0000 / ln(P/Po)]0.3330 Diameter Range: 1.7000 to 300.0000 nm Adsorbate Property Factor: 0.953000 nm Density Conversion Factor: 0.001547 Fraction of Pores Open at Both Ends: 0.000 Pore Average dV/dD Cumulative Incremental Cumulative Diameter Diameter Pore Volume Pore Volume Pore Area Pore Area Range (nm) (nm) (cm?g-nm) (cm?g) (m?g) (m?g) 3846.4- 202.8 212.5 2.8756e-06 0.010477 0.197 0.197 202.8- 55.1 64.6 1.5586e-05 0.012780 0.143 0.340 55.1- 33.5 39.2 1.8409e-04 0.016742 0.405 0.744 33.5- 19.7 23.0 7.5727e-03 0.121855 18.256 19.000 19.7- 15.9 17.3 5.3443e-02 0.323454 46.491 65.491 15.9- 13.4 14.4 6.8526e-02 0.495333 47.746 113.237 13.4- 11.6 12.3 6.9972e-02 0.621592 40.950 154.187 11.6- 10.2 10.8 5.8474e-02 0.703281 30.323 184.509 10.2- 8.2 8.9 4.7766e-02 0.798534 42.619 227.129 8.2- 6.8 7.4 3.7590e-02 0.848974 27.353 254.482 6.8- 5.9 6.3 3.1525e-02 0.880098 19.891 274.373 5.9- 5.1 5.4 2.6826e-02 0.900945 15.440 289.813 5.1- 4.5 4.7 2.3622e-02 0.915458 12.294 302.107 4.5- 4.0 4.2 1.9987e-02 0.925469 9.590 311.697 4.0- 3.5 3.7 1.7354e-02 0.932905 8.001 319.698 3.5- 3.2 3.3 1.6090e-02 0.938728 7.000 326.698 3.2- 2.8 3.0 1.3952e-02 0.943223 6.017 332.715 2.8- 2.6 2.7 1.3435e-02 0.946775 5.262 337.977 2.6- 2.3 2.4 1.1887e-02 0.950300 5.844 343.821 2.3- 2.1 2.2 1.2258e-02 0.953029 5.050 348.872 2.1- 2.0 2.0 1.4276e-02 0.954394 2.712 351.584 2.0- 1.9 1.9 1.3878e-02 0.955704 2.730 354.314 1.9- 1.8 1.8 1.5979e-02 0.957176 3.226 357.540 ASAP 2010 V5.02 H Unit 1 Serial # 2806 Page 12 Sample: SiO22 Operator: Submitter: File Name: D:\WXK\000-120.SMP Started: 4/11/2008 19:26:06PM Analysis Adsorptive: N2 Completed: 4/12/2008 7:40:47PM Analysis Bath: 77.34 K Report Time: 4/13/2008 12:46:27PM Thermal Correction: No Sample Weight: 0.2989 g Smoothed Pressures: No Warm Freespace: 29.5845 cm? Cold Freespace: 93.4152 cm? MEASURED Equil. Interval: 10 secs Low Pressure Dose: None ____________________________________________________ BJH Desorption Pore Distribution Report t = 3.5400 x [-5.0000 / ln(P/Po)]0.3330 Diameter Range: 1.7000 to 300.0000 nm Adsorbate Property Factor: 0.953000 nm Density Conversion Factor: 0.001547 Fraction of Pores Open at Both Ends: 0.000 Pore Average dV/dD Cumulative Incremental Cumulative Diameter Diameter Pore Volume Pore Volume Pore Area Pore Area Range (nm) (nm) (cm?g-nm) (cm?g) (m?g) (m?g) 3846.2- 128.9 132.8 2.7460e-06 0.010208 0.307 0.307 128.9- 54.9 65.9 2.0035e-05 0.011689 0.090 0.397 54.9- 30.9 36.5 1.0341e-04 0.014173 0.272 0.670 30.9- 27.1 28.7 2.7866e-04 0.015243 0.149 0.819 27.1- 20.1 22.5 3.3977e-04 0.017608 0.420 1.238 20.1- 16.8 18.1 1.3070e-03 0.021951 0.957 2.196 16.8- 14.2 15.3 1.1246e-02 0.051423 7.729 9.925 14.2- 12.2 13.0 6.0601e-02 0.174243 37.799 47.724 12.2- 10.6 11.2 1.2865e-01 0.377243 72.216 119.940 10.6- 8.3 9.1 1.5551e-01 0.730421 154.515 274.456 8.3- 6.6 7.2 8.5370e-02 0.879811 82.970 357.425 6.6- 5.8 6.1 4.2795e-02 0.913478 22.065 379.491 5.8- 4.9 5.3 2.7139e-02 0.936893 17.820 397.310 4.9- 4.2 4.5 1.5516e-02 0.947692 9.609 406.919 4.2- 3.7 3.9 8.9392e-03 0.952284 4.695 411.614 3.7- 3.4 3.5 5.0862e-03 0.953804 1.724 413.338 3.4- 3.0 3.2 2.0564e-03 0.954586 0.983 414.32 ASAP 2010 V5.02 H Unit 1 Serial # 2806 Page 14 Sample: SiO22 Operator: Submitter: File Name: D:\WXK\000-120.SMP Started: 4/11/2008 19:26:06PM Analysis Adsorptive: N2 Completed: 4/12/2008 7:40:47PM Analysis Bath: 77.34 K Report Time: 4/13/2008 12:46:27PM Thermal Correction: No Sample Weight: 0.2989 g Smoothed Pressures: No Warm Freespace: 29.5845 cm? Cold Freespace: 93.4152 cm? MEASURED Equil. Interval: 10 secs Low Pressure Dose: None ____________________________________________________ Summary Report Area Single Point Surface Area at P/Po 0.20086125 : 315.4497 m?g BET Surface Area: 328.1405 m?g Langmuir Surface Area: 453.9472 m?g Micropore Area: 32.8747 m?g External Surface Area: 295.2658 m?g BJH Adsorption Cumulative Surface Area of pores between 1.700000 and 300.000000 nm Diameter: 357.5400 m?g BJH Desorption Cumulative Surface Area of pores between 1.700000 and 300.000000 nm Diameter: 414.3209 m?g Volume Single Point Adsorption Total Pore Volume of pores less than 3846.5535 nm Diameter at P/Po 0.99950265: 0.948986 cm?g Micropore Volume: 0.011013 cm?g BJH Adsorption Cumulative Pore Volume of pores between 1.700000 and 300.000000 nm Diameter: 0.957176 cm?g BJH Desorption Cumulative Pore Volume of pores between 1.700000 and 300.000000 nm Diameter: 0.954586 cm?g Pore Size Adsorption Average Pore Diameter (4V/A by BET): 11.5680 nm BJH Adsorption Average Pore Diameter (4V/A): 10.7085 nm BJH Desorption Average Pore Diameter (4V/A): 9.2159 nm |
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sandyshen
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4楼2008-04-24 14:53:39
2楼2008-04-24 09:39:58
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3楼2008-04-24 13:20:11