通过在结晶良好的MOF模板上诱导生长，改善结晶度较差的金属有机骨架（MOF）的结晶度和孔隙率,Inorganic Chemistry

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通过在结晶良好的MOF模板上诱导生长，改善结晶度较差的金属有机骨架（MOF）的结晶度和孔隙率
Inorganic Chemistry ( IF 4.3 ) Pub Date : 2018-07-25 00:00:00 , DOI: 10.1021/acs.inorgchem.8b01055
Hoyeon Ji ₁ , Sujeong Lee ₁ , Jeehyun Park ₁ , Taeho Kim ₁ , Sora Choi ₁ , Moonhyun Oh ₁

Affiliation

多孔金属有机框架（MOF）由于其有趣的结构特征及其许多有用的特性和应用而成为有趣的材料。特别是，结构特征对于优化MOF的孔隙率和特性至关重要。实际上，MOF的发达微孔和高表面积是最重要的结构特征，因此，MOF的许多实际应用都源自这些结构特征。我们在本文中演示了一种改善MOF结晶度的策略，从而通过在良好结晶模板上诱导生长使其成为核-壳型杂化体，从而提高了结晶度较差的MOF的孔隙率和表面积。尽管在缺乏良好结晶模板的情况下，MOF的结晶度较低的版本会自然生成，MOF的良好结晶形式在存在良好结晶模板的情况下以感应方式产生。此外，MOF结晶度的提高汇集了其孔隙率和表面积的改善。根据此研究计算了通过在模板上诱导生长而产生的MOF的良好结晶形式的表面积和孔体积，这表明MOF表面积与较差结晶形式相比增加了多达7倍。

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Improvement in Crystallinity and Porosity of Poorly Crystalline Metal–Organic Frameworks (MOFs) through Their Induced Growth on a Well-Crystalline MOF Template

Porous metal–organic frameworks (MOFs) are interesting materials owing to their interesting structural features and their many useful properties and applications. In particular, the structural features are greatly important to optimize the MOFs’ porosities and so properties. Indeed, the MOFs’ well-developed micropore and high surface area are the most important structural features, and as such, many practical applications of MOFs originate from these structural features. We herein demonstrate a strategy for improving the crystallinity of MOFs, and so increasing the porosity and surface area of poorly crystalline MOFs by making them in core–shell-type hybrids through the induced growth on the well-crystalline template. Although poorly crystalline versions of MOFs generate naturally in the absence of the well-crystalline template, well-crystalline versions of MOFs produce inductively in the presence of the well-crystalline template. In addition, the crystallinity enhancement of MOFs brings together the improvement in their porosities and surface areas. The surface areas and pore volumes of the well-crystalline versions of MOFs produced through the induced growth on the template are calculated based on this study, indicating that MOF surface areas increase by up to 7 times compared to the poorly crystalline versions.

更新日期：2018-07-25

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