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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| Format: | Article |
| Language: | English |
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Elsevier
2025-09-01
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| Series: | Applied Catalysis O: Open |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2950648425000331 |
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| author | Yongjun Wang Cheng Han Zaihui Fu Minglin Xiang Tao Liu Xiaoshan Zhang Yucheng Ou Songhe Zhang Bing Wang Yingde Wang |
| author_facet | Yongjun Wang Cheng Han Zaihui Fu Minglin Xiang Tao Liu Xiaoshan Zhang Yucheng Ou Songhe Zhang Bing Wang Yingde Wang |
| author_sort | Yongjun Wang |
| collection | DOAJ |
| description | 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. |
| format | Article |
| id | doaj-art-4d9122d9947b442a99ffa2a3d6018d2b |
| institution | DOAJ |
| issn | 2950-6484 |
| language | English |
| publishDate | 2025-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Applied Catalysis O: Open |
| spelling | doaj-art-4d9122d9947b442a99ffa2a3d6018d2b2025-08-20T02:55:20ZengElsevierApplied Catalysis O: Open2950-64842025-09-0120620705810.1016/j.apcato.2025.207058Ultra-small Ru nanoparticles supported on MgO modified Al2O3 for efficient selective hydrogenation of hydroquinone to 1,4-cyclohexanediolYongjun Wang0Cheng Han1Zaihui Fu2Minglin Xiang3Tao Liu4Xiaoshan Zhang5Yucheng Ou6Songhe Zhang7Bing Wang8Yingde Wang9Science and Technology on Advanced Ceramic Fibers and Composites Laboratory, College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, PR China; Hunan Changlian Newmaterial Technology CO., LTD, Yueyang 414012, PR ChinaScience and Technology on Advanced Ceramic Fibers and Composites Laboratory, College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, PR China; Corresponding authors.National and Local United Engineering Laboratory for New Petrochemical Materials and Fine Utilization of Resources, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, PR ChinaHunan Changlian Newmaterial Technology CO., LTD, Yueyang 414012, PR ChinaScience and Technology on Advanced Ceramic Fibers and Composites Laboratory, College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, PR ChinaScience and Technology on Advanced Ceramic Fibers and Composites Laboratory, College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, PR ChinaScience and Technology on Advanced Ceramic Fibers and Composites Laboratory, College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, PR ChinaScience and Technology on Advanced Ceramic Fibers and Composites Laboratory, College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, PR ChinaScience and Technology on Advanced Ceramic Fibers and Composites Laboratory, College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, PR ChinaScience and Technology on Advanced Ceramic Fibers and Composites Laboratory, College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, PR China; Corresponding authors.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.http://www.sciencedirect.com/science/article/pii/S2950648425000331HydrogenationHydroquinone1,4-cyclohexanediolRuthenium catalystsMgO modification |
| spellingShingle | Yongjun Wang Cheng Han Zaihui Fu Minglin Xiang Tao Liu Xiaoshan Zhang Yucheng Ou Songhe Zhang Bing Wang Yingde Wang Ultra-small Ru nanoparticles supported on MgO modified Al2O3 for efficient selective hydrogenation of hydroquinone to 1,4-cyclohexanediol Applied Catalysis O: Open Hydrogenation Hydroquinone 1,4-cyclohexanediol Ruthenium catalysts MgO modification |
| title | Ultra-small Ru nanoparticles supported on MgO modified Al2O3 for efficient selective hydrogenation of hydroquinone to 1,4-cyclohexanediol |
| title_full | Ultra-small Ru nanoparticles supported on MgO modified Al2O3 for efficient selective hydrogenation of hydroquinone to 1,4-cyclohexanediol |
| title_fullStr | Ultra-small Ru nanoparticles supported on MgO modified Al2O3 for efficient selective hydrogenation of hydroquinone to 1,4-cyclohexanediol |
| title_full_unstemmed | Ultra-small Ru nanoparticles supported on MgO modified Al2O3 for efficient selective hydrogenation of hydroquinone to 1,4-cyclohexanediol |
| title_short | Ultra-small Ru nanoparticles supported on MgO modified Al2O3 for efficient selective hydrogenation of hydroquinone to 1,4-cyclohexanediol |
| title_sort | ultra small ru nanoparticles supported on mgo modified al2o3 for efficient selective hydrogenation of hydroquinone to 1 4 cyclohexanediol |
| topic | Hydrogenation Hydroquinone 1,4-cyclohexanediol Ruthenium catalysts MgO modification |
| url | http://www.sciencedirect.com/science/article/pii/S2950648425000331 |
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