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泰山小子123銅蟲(chóng) (著名寫(xiě)手)
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[求助]
有關(guān)計(jì)算介孔材料壁厚的問(wèn)題 已有1人參與
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文章中的一句話“From a combination of data from SAXS and BET analysis, the wall thickness of CCM-TiO2–CASH is estimated to be about 5.0 nm, calculated on the basis of a hexagonally ordered structure, whereas the thickness estimated from TEM analysis is about 8 nm.” 不明白是如何通過(guò)SAXS和BET分析計(jì)算得到介孔材料的壁厚。 |

鐵桿木蟲(chóng) (正式寫(xiě)手)
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孔壁計(jì)算主要是依據(jù),晶胞參數(shù)與孔徑和孔壁厚度關(guān)系(六方和立方結(jié)構(gòu),三者之間關(guān)系不同,具體公式不好輸入,看下邊有文獻(xiàn)吧)前兩者分別由晶面間距和BET可得: Rumplecker, A.; Kleitz, F.; Salabas, E. L.; Schuth, F., Hard templating pathways for the synthesis of nanostructured porous Co3O4. Chemistry of Materials 2007, 19, 485-496. Waitz, T.; Wagner, T.; Sauerwald, T.; Kohl, C. D.; Tiemann, M., Ordered Mesoporous In2O3: Synthesis by Structure Replication and Application as a Methane Gas Sensor. Advanced Functional Materials 2009, 19, 653-661. Lai, X.; Shen, G.; Xue, P.; Yan, B.; Wang, H.; Li, P.; Xia, W.; Fang, J., Ordered mesoporous NiO with thin pore walls and its enhanced sensing performance for formaldehyde. Nanoscale 2015, 7, 4005-4012. |
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