Ultra-small Ru nanoparticles supported on MgO modified Al2O3 for efficient selective hydrogenation of hydroquinone to 1,4-cyclohexanediol
Developing an efficient catalyst for the selective hydrogenation of hydroquinone to 1,4-cyclohexanediol is of great importance in industry because 1,4-cyclohexanediol is a key intermediate for the synthesis of medicine and liquid crystal materials. Herein, we report the fabrication of a Ru/MgO/Al2O3...
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| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-09-01
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| Series: | Applied Catalysis O: Open |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2950648425000331 |
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| Summary: | Developing an efficient catalyst for the selective hydrogenation of hydroquinone to 1,4-cyclohexanediol is of great importance in industry because 1,4-cyclohexanediol is a key intermediate for the synthesis of medicine and liquid crystal materials. Herein, we report the fabrication of a Ru/MgO/Al2O3 catalyst with ultra-small Ru nanoparticles supported on MgO modified Al2O3, which exhibited excellent catalytic performance in the hydrogenation of hydroquinone to 1,4-cyclohexanediol. Under reaction conditions of 100 °C, 5.0 MPa and weight hourly space velocity (WHSV) 0.35 h−1, the optimized catalyst 3 %Ru/3 %MgO/Al2O3 achieved a complete conversion of hydroquinone and a 1,4-cyclohexanediol selectivity of 98.4 %. Moreover, this catalyst also showed an excellent stability after 3000 h continuous running. The superior performance of 3 %Ru/3 %MgO/Al2O3 is attributed to the acidity regulation of Al2O3 by MgO modification, which not only favors the formation of highly dispersed Ru nanoparticles but also inhibits the side reaction of hydroxyl dehydration. |
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| ISSN: | 2950-6484 |