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New method for catalyst preparation based on metal-organic framework MOF-5 for the partial hydrogenation of phenylacetylene |
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| Authors: | E V Belyaeva V I Isaeva E E Said-Galiev O P Tkachenko S V Savilov A V Egorov L M Kozlova V Z Sharf L M Kustova |
| Institution: | 1. N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 119991, Moscow, Russian Federation 2. A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 ul. Vavilova, 119991, Moscow, Russian Federation 3. Chemical Department, M. V. Lomonosov Moscow State University, 1 Leninskie Gory, 119991, Moscow, Russian Federation |
| Abstract: | Small (less than 2 nm) Pd nanoparticles immobilized in the matrix of the microporous phenylenecarboxylate metal-organic framework MOF-5 were prepared for the first time by the fluid method. The catalytic properties of samples Pd@MOF-5 were studied in the selective hydrogenation of phenylacetylene to styrene (methanol, 20 °C, P H2 = 1 atm). The catalytic experimental data and results of physicochemical studies indicate that palladium nanoparticles are mostly localized in pores of the composite material 1%Pd@MOF-5 obtained by the fluid synthesis. The specific positions of active sites in the intracrystalline volume results in the suppression of the undesirable conversion of styrene to ethylbenzene. |
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