Oxidative dehydrogenation of ethylbenzene on mesoporous carbon catalysts: effect of the active site number on the apparent catalytic activity
文献类型：期刊论文
| 作者 | Guo, Miao1,2; Dai, Xueya2,3; Bai, Yunli2,3; Lu, Xingyu2,3; Yao, Zhiwei1; Qi, Wei2,3 |
| 刊名 | CATALYSIS SCIENCE & TECHNOLOGY
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| 出版日期 | 2024-02-01 |
| 页码 | 8 |
| ISSN号 | 2044-4753 |
| DOI | 10.1039/d3cy01782f |
| 通讯作者 | Dai, Xueya(xydai19b@imr.ac.cn) ; Yao, Zhiwei(mezhiwei@163.com) ; Qi, Wei(wqi@imr.ac.cn) |
| 英文摘要 | Oxidative dehydrogenation (ODH) of ethylbenzene (EB) over nanocarbon catalysts has attracted intensive attention due to its impressive dehydrogenation conversion, selectivity and low ecological carbon footprint. In this work, novel sucrose-derived mesoporous carbon (SMC-x) was synthesized via the hard template method and applied as a catalyst in the EB ODH reaction. The SMC-1000 catalyst demonstrated an EB conversion of 55.6% with a styrene (ST) selectivity of 90.9% under gentle reaction conditions, maintaining long-term stability for over 18 h, surpassing commercial nanocarbon materials. Through a correlation between reactivity and the surface composition and structural information of SMC-x catalysts, ketonic carbonyl groups have been identified as the catalytically active sites for the dehydrogenation reactions, and the apparent catalytic activity of the carbon materials is found to be directly related to the number of active sites. This finding underscores the significance of these specific functional groups in driving the catalytic activity of SMC-x. Furthermore, the fundamental reaction kinetics and mechanistic nature of SMC-x catalyzed EB ODH reactions were systematically investigated through kinetic analysis, isotope, and temperature programmed desorption experiments. SMC-x catalysts demonstrate a distinctive carbon framework containing a significant number of C 00000000 00000000 00000000 00000000 11111111 00000000 11111111 00000000 00000000 00000000 O active sites for ethylbenzene oxidative dehydrogenation. |
| 资助项目 | National Natural Science Foundation of China[U23A20545] ; National Natural Science Foundation of China[22072163] ; NSFC of China[2020-YQ-02] ; Natural Science Foundation of Liaoning Province of China[Foudation-BWLCF202113] ; China Baowu Low Carbon Metallurgy Innovation[2023-PY13] ; IMR Innovation Fund |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:001160569700001 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 资助机构 | National Natural Science Foundation of China ; NSFC of China ; Natural Science Foundation of Liaoning Province of China ; China Baowu Low Carbon Metallurgy Innovation ; IMR Innovation Fund |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Dai, Xueya; Yao, Zhiwei; Qi, Wei |
| 作者单位 | 1.Liaoning Petrochem Univ, Sch Petrochem Engn, Fushun 113001, Peoples R China 2.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 3.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Liaoning, Peoples R China |
| 推荐引用方式 GB/T 7714 | Guo, Miao,Dai, Xueya,Bai, Yunli,et al. Oxidative dehydrogenation of ethylbenzene on mesoporous carbon catalysts: effect of the active site number on the apparent catalytic activity[J]. CATALYSIS SCIENCE & TECHNOLOGY,2024:8. |
| APA | Guo, Miao,Dai, Xueya,Bai, Yunli,Lu, Xingyu,Yao, Zhiwei,&Qi, Wei.(2024).Oxidative dehydrogenation of ethylbenzene on mesoporous carbon catalysts: effect of the active site number on the apparent catalytic activity.CATALYSIS SCIENCE & TECHNOLOGY,8. |
| MLA | Guo, Miao,et al."Oxidative dehydrogenation of ethylbenzene on mesoporous carbon catalysts: effect of the active site number on the apparent catalytic activity".CATALYSIS SCIENCE & TECHNOLOGY (2024):8. |
入库方式： OAI收割
来源：金属研究所
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