Ru-MOF enwrapped by montmorillonite for catalyzing benzene hydrogenation
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Huang, Mei
He, Shuai
He, Shulian
Ding, Liping
Wang, Qi
Yu, Shaoming
Miao, Shiding
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Abstract
In this work, the metal-organic frameworks of ruthenium [Ru2II,III(BTC)2XxY1.5-x] (BTC=1,3,5-benzenetri-carboxylate, X, Y=Cl- or OH-, termed as Ru-MOFs) that are grown on montmorillonite (Mt) in a solvothermal reaction, and a type of composite materials (Ru-MOF_Mt) with open channels have been fabricated. Due to the high pore volume, the Ru-MOF particles are found to greatly enlarge the surface area of the hybrid material. To activate the metal centers in the Ru-MOF, the hybrids are annealed in a flow of H2 at mid-level temperatures (~300°C). With this H2-annealing treatment the frameworks are found to be partly decomposed, and the coordinatively unsaturated sites (CUS) are produced. The annealed Ru-MOF_Mt is highly efficient in catalyzing reactions of benzene hydrogenation. The turn-over frequency (TOF) of benzene to hexane reaches 3478h-1. This catalyst is able to be reused at least five times without any de-activation demonstrating that the CUS are readily protected by the Mt layers.
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Applied Clay Science
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119
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1
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Earth sciences
Engineering
Materials engineering
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Chemistry, Physical
Materials Science, Multidisciplinary
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Chen, D; Huang, M; He, S; He, S; Ding, L; Wang, Q; Yu, S; Miao, S, Ru-MOF enwrapped by montmorillonite for catalyzing benzene hydrogenation, Applied Clay Science, 2016, 119 (1), pp. 109-115