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liuxuanyan金蟲 (小有名氣)
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[求助]
鈦硅分子篩TS-1 XRD特征峰歸屬
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| 請教鈦硅分子篩TS-1 XRD粉末衍射,2θ=7.8°、8.8°、23.2°、23.8°、24.3° 峰的歸屬。2θ=7.8°、8.8°小角峰強度相對于2θ=23-25°之間峰強度的變化說明什么呢?謝謝! |
木蟲 (著名寫手)
有木有蟲
木蟲 (正式寫手)
學習ing...

木蟲 (正式寫手)
學習ing...

木蟲 (著名寫手)
有木有蟲
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分子篩和水滑石、粘土等柱撐層狀材料不同,不可以胡亂套用這種方法去計算。微孔分子篩的孔道結構是多種多樣的,同一類型分子篩可能有多種孔道,既有直的也有彎的,既可能相互獨立也可能交叉排列、相互貫通,截面有近似圓形的也有類橢圓型的,通道的大小一般通過解析結構和分子探針測試獲得,不可能用小角度計算出,這一點和柱撐層狀材料、介孔材料不同。 |
木蟲 (著名寫手)
有木有蟲
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這是純SiO2的ZSM-5,也作Silicalite-1,可以作為參考。 Card Information Names: Silicon Oxide Formula: Si O2 PDF Number: 43-784 Quality: indexed Subfiles: inorganic alloy PHR Cell and Symmetry Information System: orthorhombic Space Group: Pnma (no. 62) a: 20.104 b: 19.897 c: 13.395 Z: 190 Instrument Information Radiation: CuKa Wavelength: 1.5418 Instrument(d): unknown Instrument(I): unknown I type: unknown Comments and Additional Information Preparation: Prepared by mixing ammonium fluoride, aqueous colloidal silica gel, sodium hydroxide and tetrapropylammonium bromide. The mixture was placed in a pressure vessel and heated at 200 C. The crystalline product was recovered by filtration and calcined at 600 C for 2 hours. General: Space group and indexing based upon data given in 44-3, Al2 O111 Si54. Literature References General: Flanigen, E., Patton, R., 4,073,865. U.S. Patent (1978) Peak Data PeakList h k l d I 1 0 1 11.135 91 2 0 0 10.014 100 1 1 1 9.7498 17 2 1 0 8.9886 1 2 0 1 8.0431 1 1 2 1 7.4368 1 2 2 0 7.0811 1 0 0 2 6.6920 4 1 0 2 6.3618 6 3 0 1 5.9935 10 1 3 1 5.7094 5 2 0 2 5.5738 5 2 1 2 5.3692 1 1 2 2 5.3275 1 3 2 1 5.2125 1 2 3 1 5.1228 2 4 0 0 5.0220 5 0 4 0 4.9690 6 4 1 0 4.8742 1 4 0 1 4.7200 1 3 1 2 4.6178 2 2 4 0 4.4660 1 0 1 3 4.3554 3 4 2 1 4.2543 4 2 0 3 4.1349 1 4 0 2 4.0768 2 4 3 0 4.0042 3 5 0 1 3.8519 44 0 5 1 3.8176 25 2 4 2 3.7124 21 3 1 3 3.6524 5 1 3 3 3.6216 5 5 2 1 3.5900 1 3 2 3 3.4836 2 5 0 2 3.4504 3 4 3 2 3.4374 3 6 0 0 3.3535 3 3 5 1 3.3131 5 6 0 1 3.2526 2 2 5 2 3.2307 1 6 1 1 3.2204 1 0 2 4 3.1699 1 2 1 4 3.1415 1 5 3 2 3.0573 2 4 5 1 3.0379 2 5 0 3 2.9873 7 1 3 4 2.9564 3 6 3 1 2.9252 1 3 6 1 2.9159 1 2 3 4 2.8640 1 4 0 4 2.7883 1 2 7 0 2.7352 2 4 2 4 2.6819 1 0 1 5 2.6541 1 7 1 2 2.6129 1 1 7 2 2.5931 1 4 6 2 2.5580 1 6 5 1 2.5190 2 0 8 0 2.4867 2 2 5 4 2.4800 2 3 6 3 2.4728 1 7 0 3 2.4176 1 5 3 4 2.4001 2 3 5 4 2.3927 2 3 3 5 2.3266 1 4 8 1 2.1961 1 5 2 5 2.1759 1 2 8 3 2.1222 1 6 0 5 2.0941 1 3 9 1 2.0758 1 9 4 1 2.0132 5 4 7 4 1.9906 5 2 10 0 1.9521 1 1 0 7 1.9054 1 7 3 5 1.8766 1 8 4 4 1.8629 1 8 6 3 1.8272 1 2 11 1 1.7655 1 5 1 7 1.7217 1 12 1 0 1.6692 2 4 11 2 1.6502 1 |
木蟲 (著名寫手)
有木有蟲
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這是含Al的ZSM-5,雖然與JCPDS No.43-784的Silicalite-1一樣經(jīng)過脫水、焙燒,但無論峰的相對衍射強度還是角度,兩者都還是有差別的。 Card Information Names: Aluminum Silicate ZSM-5 Formula: Al2 O3 !54 Si O2 PDF Number: 44-3 Quality: star Subfiles: inorganic ZEO Cell and Symmetry Information System: orthorhombic Space Group: Pnma (no. 62) a: 20.104 b: 19.897 c: 13.395 Instrument Information Radiation: CuKa1 Wavelength: 1.5406 Instrument(d): diffractometer Instrument(I): diffractometer I type: unknown Comments and Additional Information Source: Sample prepared at the Engineering Laboratory, Universidad Complutense de Madrid. Pattern: See ICSD 201183 (PDF 01-084-0385). Literature References General: Alvarez, A., Viturro, H., Bonetto, R. Private Communication ( ) Peak Data Note : Wavelength of 1.5406 ? used. PeakList h k l d I 1 0 1 11.081 100 2 0 0 10.020 64 0 2 0 9.9090 70 1 1 1 9.6858 17 2 1 0 8.9471 2 2 0 1 8.0129 1 1 2 1 7.4031 2 2 2 0 7.0531 1 0 0 2 6.6803 4 1 0 2 6.3419 8 3 0 1 5.9860 11 0 3 1 5.9290 5 1 3 1 5.6911 8 2 0 2 5.5625 7 1 2 2 5.3499 2 3 2 1 5.1291 2 4 0 0 5.0210 4 0 4 0 4.9707 8 3 1 2 4.6071 3 2 4 0 4.4525 1 1 0 3 4.3567 4 1 1 3 4.2530 7 2 0 3 4.0797 1 4 3 0 4.0056 3 3 3 2 3.8505 48 0 5 1 3.8114 59 1 5 1 3.7480 17 3 0 3 3.7126 29 1 3 3 3.6429 16 5 2 1 3.5903 1 3 2 3 3.4809 2 4 3 2 3.4377 4 5 1 2 3.3967 2 1 5 2 3.3724 1 6 0 0 3.3515 3 0 6 0 3.3156 7 6 1 0 3.3037 2 3 3 3 3.2397 1 1 6 1 3.1783 1 3 5 2 3.0482 4 6 3 0 2.9897 4 0 5 3 2.9699 3 1 6 2 2.9413 2 5 2 3 2.8646 1 2 7 0 2.7331 2 5 5 2 2.6079 2 6 2 3 2.5874 1 3 4 4 2.5659 1 8 0 0 2.5147 2 7 0 3 2.4150 2 3 5 4 2.3959 1 10 0 0 2.0106 5 0 10 0 1.9907 8 7 6 3 1.9535 1 8 6 2 1.9192 1 |
金蟲 (小有名氣)
金蟲 (小有名氣)
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