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zhongyonga木蟲 (正式寫手)
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[求助]
MOF的合成
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| 最近在看MOF類的文章,有一些困惑,希望有經(jīng)驗(yàn)的朋友能不吝賜教。MOF目前有多少種晶體結(jié)構(gòu)?一些MOF的合成中會(huì)加入PVP,這里PVP的作用是什么,是模板嗎?如何畫MOF的結(jié)構(gòu)?如果回答合適,定有額外金幣贈(zèng)送。 |
木蟲 (正式寫手)
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金屬有機(jī)框架材料,金屬離子加有機(jī)配體,目前合成出來的應(yīng)該非常多,pvp是聚合物,我猜可能是為了阻止骨架坍塌,起支撐作用。個(gè)人意見僅作參考。畫圖的話常用diamond,Mercury等軟件 發(fā)自小木蟲IOS客戶端 |
木蟲 (正式寫手)
| 我已經(jīng)找到相關(guān)解釋了,這里我貼出相關(guān)段落“Surfactants and swelling agents have been used as SDAs, in analogy to mesostructured zeolite synthesis, to get hierarchically micro- and mesoporous MOFs. Triblock copolymers P123 and F127 in ethanol were used to synthesize hierarchically microand mesoporous AlMIL-53 with two types of mesopore diameters.193 The formation of the larger (5.47.6 nm) and the smaller (4.0 nm) pore diameters was attributed to block copolymers and solvent. It was presumed that ethanol reacts with 1,4-benzenedicarboxylic acid under the synthesis conditions and that the resulting organic product acts as a different surfactant creating smaller mesopores. In another study, the surfactant CTAB and the swelling agent TMB were employed to create mesoporous HKUST-1.194 An increase in CTAB/Cu2+ molar ratio enhanced the meosopore diameter from 3.8 to 5.6 nm. A further increase in the mesopore diameter up to 31 nm was achieved by carefully optimizing the TMB/CTAB molar ratio.”需要的朋友可以詳細(xì)參考Chem. Rev. 2012, 112, 933–969。 |
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