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zhongyonga

木虫 (正式写手)

[求助] MOF的合成

最近在看MOF类的文章,有一些困惑,希望有经验的朋友能不吝赐教。MOF目前有多少种晶体结构?一些MOF的合成中会加入PVP,这里PVP的作用是什么,是模板吗?如何画MOF的结构?如果回答合适,定有额外金币赠送。
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zhongyonga

木虫 (正式写手)

zhongyonga: 回帖置顶 2019-12-25 16:51:28
我已经找到相关解释了,这里我贴出相关段落“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.”需要的朋友可以详细参考Chem. Rev. 2012, 112, 933–969。
4楼2019-12-25 16:49:52
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明未知、

新虫 (正式写手)

金属有机框架材料,金属离子加有机配体,目前合成出来的应该非常多,pvp是聚合物,我猜可能是为了阻止骨架坍塌,起支撑作用。个人意见仅作参考。画图的话常用diamond,Mercury等软件

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2楼2019-12-18 09:05:12
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zhongyonga

木虫 (正式写手)

引用回帖:
2楼: Originally posted by 明未知、 at 2019-12-18 09:05:12
金属有机框架材料,金属离子加有机配体,目前合成出来的应该非常多,pvp是聚合物,我猜可能是为了阻止骨架坍塌,起支撑作用。个人意见仅作参考。画图的话常用diamond,Mercury等软件
...

谢谢回复!
3楼2019-12-18 09:25:27
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