Microporous manganese formate: A simple metal-organic porous material with high framework stability and highly selective gas sorption properties
Microporous manganese formate: A simple metal-organic porous material with high framework stability and highly selective gas sorption properties
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DOI：
10.1021/ja038678c
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发表时间：
2004-01-14
影响因子：
15
通讯作者：
Kim, K
中科院分区：
文献类型：
--
作者：
Dybtsev, DN;Chun, H;Kim, K
由Mn(II)和甲酸离子组成的新型微孔金属有机骨架材料具有永久孔隙率、高热稳定性和尺寸选择性气体吸附行为。在150°C减压下完全去除客体后，该框架足够稳定以保持单结晶性。最重要的是，它选择性地吸附 H2 和 CO2，但不吸附 N2 和其他具有较大动力学直径的气体，这似乎是由于通道孔径较小。尽管其储氢能力中等，但仍高于任何沸石，但其氢气表面覆盖率是已知微孔材料中最高的之一。因此，这种由简单的有机结构单元制成的新型沸石类材料可能会在气体分离和传感器中找到有用的应用。
Novel microporous metal−organic framework material composed of Mn(II) and formate ions displays permanent porosity, high thermal stability, and size-selective gas sorption behavior. The framework is stable enough to maintain single crystallinity after the complete guest removal at 150 °C under a reduced pressure. Most importantly, it selectively adsorbs H2and CO2but not N2and other gases with larger kinetic diameters, which appears to be due to the small aperture of the channels. Despite a moderate H2storage capacity, which is however still higher than that of any zeolite, its H2surface coverage is one of the highest among the known microporous materials. Thus this new zeolite-like material made of a simple organic building block may find useful applications in gas separation and sensor.