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Oxidative dehydrogenation on nanocarbon: Effect of heteroatom doping
Liu, Wei2; Wang, Chao1; Herold, Felix3; Etzold, Bastian J. M.3; Su, Dangsheng2; Qi, Wei2,4
Corresponding AuthorQi, Wei(wqi@imr.ac.cn)
2019-12-05
Source PublicationAPPLIED CATALYSIS B-ENVIRONMENTAL
ISSN0926-3373
Volume258Pages:8
AbstractKinetic 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.
KeywordOxidative dehydrogenation Heteroatom doping Carbon materials Kinetics Heterogeneous catalysis
Funding OrganizationNSFC of China ; Youth Innovation Promotion Association, CAS ; Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) ; Deutsche Bundesstiftung Umwelt (DBU)
DOI10.1016/j.apcatb.2019.117982
Indexed BySCI
Language英语
Funding ProjectNSFC 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 Research AreaChemistry ; Engineering
WOS SubjectChemistry, Physical ; Engineering, Environmental ; Engineering, Chemical
WOS IDWOS:000487570000040
PublisherELSEVIER
Citation statistics
Cited Times:17[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/135458
Collection中国科学院金属研究所
Corresponding AuthorQi, Wei
Affiliation1.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
Recommended Citation
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.
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