MOF catalysis in relation to their homogeneous counterparts and conventional solid catalysts
MOF catalysis in relation to their homogeneous counterparts and conventional solid catalysts
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DOI：
10.1039/c4sc00265b
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发表时间：
2014-01-01
期刊：
影响因子：
8.4
通讯作者：
Corma, Avelino
中科院分区：
文献类型：
--
作者：
Garcia-Garcia, Pilar;Mueller, Maike;Corma, Avelino
金属-有机骨架由于其高含量的金属中心和大的表面积和孔体积以及沿着其令人印象深刻的拓扑丰富性而作为多相催化剂最近引起了人们的注意。因此，已经发表了许多描述使用MOF作为非均相刘易斯酸催化剂的研究。在这方面，这些努力已经指向探测催化活性。在动力学参数和与其均相对应物或其他常规非均相催化剂的性能比较方面，需要进一步的信息。在这里，我们试图把MOFs的角度来看，他们的均相对应物和更传统的非均相催化剂，以显示其优点和局限性。我们已经举例说明了文献中报道的许多反应，其中M0 F已经用作催化剂，并且我们已经使用均相对应物（即苯甲酸酯和乙酸酯）和其他明确定义的常规固体催化剂进行了这些反应。催化剂的活性和选择性进行了比较，然后把透视的基础上的动力学参数，如周转次数和周转频率。此外，我们使用选定的例子说明了MOF催化剂的潜在优势，以及它们如何超越其他固体催化剂的潜力。
Metal-organic frameworks have recently attracted attention as heterogeneous catalysts due to their high content of metal centres and large surface area and pore volume, along with their impressive topological richness. Therefore, many studies describing the use of MOFs as heterogeneous Lewis acid catalysts have been published. In this regard, these efforts have been directed towards probing the catalytic activity. Further information is required in terms of kinetic parameters and comparison of performance with their homogeneous counterparts, or other conventional heterogeneous catalysts. Here we have attempted to put MOFs into perspective with respect to their homogeneous counterparts and more conventional heterogeneous catalysts to show their advantages and limitations. We have exemplified a number of reactions reported in the literature wherein MOFs have been used as catalysts, and we have carried them out using homogeneous counterparts, i.e. benzoates and acetates, and other well defined conventional solid catalysts. The activities and selectivities of the catalysts are compared and then put into perspective on the basis of kinetic parameters, such as turnover numbers and turnover frequencies. Additionally, we illustrate using selected examples what the potential advantages of MOF catalysts could be, and how they may outperform the potential of other solid catalysts.