| Oxidative dehydrogenation on nanocarbon: Effect of heteroatom doping | |
| Liu, Wei2; Wang, Chao1; Herold, Felix3; Etzold, Bastian J. M.3; Su, Dangsheng2; Qi, Wei2,4 | |
| 通讯作者 | Qi, Wei(wqi@imr.ac.cn) |
| 2019-12-05 | |
| 发表期刊 | APPLIED CATALYSIS B-ENVIRONMENTAL
 |
| ISSN | 0926-3373 |
| 卷号 | 258页码:8 |
| 摘要 | Kinetic analysis is a powerful and effective strategy to reveal the physical-chemical nature of the promotion effect of heteroatoms to nanocarbon catalysts. The present work reported the mechanistic and kinetic analysis of ethylbenzene oxidative dehydrogenation (ODH) reactions on heteroatom (N or B) doped and undoped carbon nanotube (CNT) catalysts via active site titration, kinetic isotope effect and single reactant surface reaction experiments etc. The physical-chemical meanings behind the elementary step rate and equilibrium constants were revealed and applied for interpretations of the promotion effect of heteroatoms at molecular level. Nitrogen doped CNT exhibited both higher rate and equilibrium constants for C-H bond dissociation and O-2 adsorption than undoped one via facilitating the electron transfer process. The evolution of the active sites could be quantitatively described with rate equation via the theory of most abundant surface intermediates, which provides in depth understandings on the mechanism and structure-function relations in carbon catalyzed redox reactions. |
| 关键词 | Oxidative dehydrogenation Heteroatom doping Carbon materials Kinetics Heterogeneous catalysis |
| 资助者 | NSFC of China ; Youth Innovation Promotion Association, CAS ; Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) ; Deutsche Bundesstiftung Umwelt (DBU) |
| DOI | 10.1016/j.apcatb.2019.117982 |
| 收录类别 | SCI |
| 语种 | 英语 |
| 资助项目 | NSFC of China[21761132010] ; NSFC of China[91645114] ; NSFC of China[21573256] ; Youth Innovation Promotion Association, CAS ; Deutsche Forschungsgemeinschaft (DFG, German Research Foundation)[ET-101/13-1] ; Deutsche Bundesstiftung Umwelt (DBU) |
| WOS研究方向 | Chemistry ; Engineering |
| WOS类目 | Chemistry, Physical ; Engineering, Environmental ; Engineering, Chemical |
| WOS记录号 | WOS:000487570000040 |
| 出版者 | ELSEVIER |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.imr.ac.cn/handle/321006/135458 |
| 专题 | 中国科学院金属研究所 |
| 通讯作者 | Qi, Wei |
| 作者单位 | 1.Shenyang Pharmaceut Univ, Sch Med Devices, 103 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China 3.Tech Univ Darmstadt, Ernst Berl Inst Tech & Makromol Chem, D-64287 Darmstadt, Germany 4.Northeastern Univ, Coll Sci, Dept Chem, Shenyang 110819, Liaoning, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Wei,Wang, Chao,Herold, Felix,et al. Oxidative dehydrogenation on nanocarbon: Effect of heteroatom doping[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2019,258:8. |
| APA | Liu, Wei,Wang, Chao,Herold, Felix,Etzold, Bastian J. M.,Su, Dangsheng,&Qi, Wei.(2019).Oxidative dehydrogenation on nanocarbon: Effect of heteroatom doping.APPLIED CATALYSIS B-ENVIRONMENTAL,258,8. |
| MLA | Liu, Wei,et al."Oxidative dehydrogenation on nanocarbon: Effect of heteroatom doping".APPLIED CATALYSIS B-ENVIRONMENTAL 258(2019):8. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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