Dynamic acidity in defective UiO-66.

Dynamic acidity in defective UiO-66.
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DOI:
10.1039/c5sc04953a
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发表时间:
2016-07-01
期刊:
影响因子:
8.4
通讯作者:
Slater B
Slater B
中科院分区:
化学1区
文献类型:
--
作者:
Ling S;Slater B

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金属有机骨架(MOF)材料UIO-66因其热稳定性和化学稳定性以及在催化应用中的潜力而成为最有前途的MOF材料之一。我们改进了最近使用静态和动态第一性原理方法对缺失的连接子缺陷结构的实验确定,这揭示了一个动态和不稳定的酸中心,可以为催化功能应用量身定做。金属有机骨架(MOF)材料UIO-66因其热稳定性和化学稳定性以及在催化应用中的潜力而成为最有前途的MOF材料之一。通常,合成的UIO-66具有相对较高浓度的缺失接头缺陷。这些缺陷的存在与催化活性有关,但缺陷结构的表征已被证明是难以捉摸的。我们改进了最近使用静态和动态第一性原理方法对缺陷结构的实验测定,揭示了一个动态和不稳定的酸中心,可以为催化功能应用量身定做。
The metal–organic framework (MOF) material UiO-66 has emerged as one of the most promising MOF materials due to its thermal and chemical stability and its potential for catalytic applications. We refine a recent experimental determination of the missing linker defect structure using static and dynamic first principles approaches, which reveals a dynamic and labile acid centre that could be tailored for functional applications in catalysis. The metal–organic framework (MOF) material UiO-66 has emerged as one of the most promising MOF materials due to its thermal and chemical stability and its potential for catalytic applications. Typically, as-synthesised UiO-66 has a relatively high concentration of missing linker defects. The presence of these defects has been correlated with catalytic activity but characterisation of defect structure has proved elusive. We refine a recent experimental determination of defect structure using static and dynamic first principles approaches, which reveals a dynamic and labile acid centre that could be tailored for functional applications in catalysis.
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