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Defect formation in metal–organic frameworks initiated by the crystal growth-rate and effect on catalytic performance
Journal of Catalysis ( IF 7.3 ) Pub Date : 2017-09-06 , DOI: 10.1016/j.jcat.2017.08.012
Somboon Chaemchuen , Zhixiong Luo , Kui Zhou , Bibimaryam Mousavi , Suphot Phatanasri , Mietek Jaroniec , Francis Verpoort

The defect formation in metal–organic frameworks (MOFs) initiated by the crystal growth-rate of different synthesis procedures affects the structure, morphology and other properties of MOFs such as particle shape, gas adsorption capacity and specifically catalytic performance etc. Although the design of defect structures and the defect structures itself are well known, comparatively little is known regarding defect creation introduced by the synthesis procedure (different from mixed-linker approach, the use of acid modulators, post-synthetic treatment, etc.) and characterization of the resulting naturally occurring abnormalities (defects) in the material. Moreover, high performance of MOFs in various catalytic reactions can be correlated to the higher amount of defect structures because defects can possibly exhibit acid and/or basic properties. While studies of MOF crystallinity confirmed that for a given type of MOF different synthesis methods generate samples of similar crystal structures, their morphologies are often different due to the differences in the crystallization rates associated with these methods.



中文翻译:

晶体生长速率引发的金属有机骨架中的缺陷形成及其对催化性能的影响

不同合成程序的晶体生长速率引发的金属有机骨架(MOF)中的缺陷形成会影响MOF的结构,形态和其他性质,例如颗粒形状,气体吸附能力,尤其是催化性能等。缺陷结构和缺陷结构本身是众所周知的,关于由合成程序引入的缺陷产生(与混合接头方法不同,使用酸调节剂,后合成处理等)以及所得产物的表征知之甚少。材料中自然发生的异常(缺陷)。此外,由于缺陷可能会表现出酸和/或碱性,因此MOF在各种催化反应中的高性能可能与大量缺陷结构相关。

更新日期:2017-09-06
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