Journal
CATALYSIS SCIENCE & TECHNOLOGY
Volume 8, Issue 1, Pages 236-243Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7cy01351e
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Funding
- National Key Research and Development Program [2017YFA0206804]
- National Natural Science Foundation of China (NSFC)
- Fundamental Research Funds for the Central Universities [buctylkxj01]
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Ruthenium-based catalysts are one of the most promising candidates toward selective hydrogenation of benzene. In this work, we synthesized a novel core-shell catalyst by coating porous B-doped ZrO2 on the surface of Ru/ZrO2 particles (denoted as Ru/ZrO2@ ZrO2-B.x%)), in which the hydrogen dissociation occurs on the inner surface of metal Ru and the acid site of the exterior ZrO2-B.x%) serves as the adsorption site for benzene. The Ru/ZrO2@ZrO2-B.5%) sample demonstrates the optimal synergistic catalysis between metal Ru and the weak/medium-strong Lewis acid site of the ZrO2-B.5%) layer, which promotes the activated adsorption of benzene and desorption of cyclohexene. Therefore, it exhibits the best catalytic performance (benzene conversion: 53.1%; cyclohexene selectivity: 58.8%) without using any additives.
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