Oxidative dehydrogenation of ethylbenzene on mesoporous carbon catalysts: effect of the active site number on the apparent catalytic activity

doi:10.1039/d3cy01782f

IMR OpenIR

	Oxidative dehydrogenation of ethylbenzene on mesoporous carbon catalysts: effect of the active site number on the apparent catalytic activity
	Guo, Miao 1,2; Dai, Xueya 2,3; Bai, Yunli 2,3; Lu, Xingyu 2,3; Yao, Zhiwei 1; Qi, Wei 2,3
通讯作者	Dai, Xueya(xydai19b@imr.ac.cn) ; Yao, Zhiwei(mezhiwei@163.com) ; Qi, Wei(wqi@imr.ac.cn)
	2024-02-01
发表期刊	CATALYSIS SCIENCE & TECHNOLOGY
ISSN	2044-4753
页码	8
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.
资助者	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
DOI	10.1039/d3cy01782f
收录类别	SCI
语种	英语
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
WOS类目	Chemistry, Physical
WOS记录号	WOS:001160569700001
出版者	ROYAL SOC CHEMISTRY
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/184094
专题	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.