Bottom-Up Synthesis of Monodispersed Single-Crystalline Cyano-Bridged Coordination Polymer Nanoflakes
Bottom-Up Synthesis of Monodispersed Single-Crystalline Cyano-Bridged Coordination Polymer Nanoflakes
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DOI：
10.1002/anie.201208501
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发表时间：
2013-01-01
影响因子：
16.6
通讯作者：
Yamauchi, Yusuke
中科院分区：
文献类型：
--
作者：
Hu, Ming;Ishihara, Shinsuke;Yamauchi, Yusuke
配位聚合物（CPs），包括金属有机骨架（MOFs）、多孔配位聚合物（PCPs）和普鲁士蓝类似物，由于其可调节的孔结构和骨架组成，近年来受到人们的关注。[1]目前，由于其独特的尺寸和形状依赖性的性质，这不同于散装晶体的纳米结构控制的CP已变得越来越有趣。[2-4]另一方面，二维（2D）形态是有趣的，因为它显示了许多在本体化学中不可观察的性质。[5]例如，在石墨中，可以在单层石墨烯纳米片上观察到各种独特的性质，例如电场效应、量子霍尔效应和超热导率。[5a对于电化学应用，可以在2D纳米片/纳米膜/纳米片上实现增强的循环稳定性、更大的放电容量和有效的锂插入。[5c-f]在2D CP纳米片/纳米膜/纳米片中可以预期类似的效果。2D CP可以提供高度可及的表面积，其允许客体分子有效地进入CP中的微孔。此外，2D CP可以为催化和电化学反应提供许多活性位点，并且组装的CP可以用作膜过滤器。因此，已经为成功制备2D CP做出了一些努力。[6]Kitagawa等人使用逐层生长方法制备M0 F-2纳米膜。[6a]Xu等人[6b]提出了一个自上而下的分层过程从块状晶体的层状MOF，和Cheetham等人。[6c]报道
Coordination polymers (CPs), including metal–organic frameworks (MOFs), porous coordination polymers (PCPs), and Prussian blue analogues, have received attention in recent years because their adjustable pore structures and their framework compositions make them attractive materials for many applications.[1] Currently, the nanostructural control of CPs has become increasingly interesting due to their unique size-and shape-dependent properties, which differ from those of bulk crystals.[2–4]On the other hand, a two-dimensional (2D) morphology is interesting because it shows many properties that are not observable in bulk chemistry.[5] For example, in graphite, various unique properties, such as the electric field effect, quantum Hall effect, and superthermal conductivity, can be observed on monolayer graphene nanosheets.[5a, b] For electrochemical applications, enhanced cycling stability, larger discharge capacity, and efficient lithium insertion can be realized on 2D nanosheets/nanofilms/nanoflakes.[5c–f] Similar effects can be expected in 2D CP nanosheets/nanofilms/nanoflakes. The 2D CPs can offer a highly accessible surface area that permits guest molecules to effectively enter the micropores in the CPs. Moreover, 2D CPs can provide many active sites for catalytic and electrochemical reactions, and furthermore assembled CPs can be used as membrane filters. Several efforts have thus been made towards the successful preparation of 2D CPs.[6] Kitagawa et al. prepared an MOF-2 nanofilm using a layer-by-layer growth method.[6a] Xu et al.[6b] proposed a top-down delamination process from bulk crystals of a layered MOF, and Cheetham et al.[6c] reported