Revealing the origin of the reactivity of metal-free boron nitride catalysts in oxidative dehydrogenation of propane
文献类型：期刊论文
| 作者 | Si, Chaowei1,2; Lian, Zan1,2; Olanrele, Samson O.1,2; Sun, XiaoYing3; Li, Bo2 |
| 刊名 | APPLIED SURFACE SCIENCE
 |
| 出版日期 | 2020-07-30 |
| 卷号 | 519页码:8 |
| 关键词 | Boron nitride Oxidative dehydrogenation Metal-free catalyst Reaction mechanism Density functional theory |
| ISSN号 | 0169-4332 |
| DOI | 10.1016/j.apsusc.2020.146241 |
| 通讯作者 | Sun, XiaoYing(sunxiaoying78@163.com) ; Li, Bo(boli@imr.ac.cn) |
| 英文摘要 | Oxidative dehydrogenation (ODH) of propane is one of effective catalytic routes to produce value-added propene. Recently, boron nitride catalysts demonstrate extraordinary catalytic performance in ODH of propane with over 90% selectivity under 14% propane conversion. In this work, first principles calculations were performed to unravel the origin of activity of boron nitride catalyst. Three most active centers, including boron zigzag edge, nitrogen vacancies, and O = group, are identified from the screening propane first C-H bond activation among a large pool of candidates. The calculations verified the intrinsic reactivity of boron nitride which mostly comes from boron atoms at defective sites. The strong bonding between boron and carbon in propane dissociated fragments is accountable for the observed intrinsic reactivity. The detailed reaction pathway is revealed which cover from propene formation to active site regeneration. It is found that more critical step on pathway is regeneration rather than C-H bond activation. On the other hand, the active site could undergo conversion between each other at regeneration step. Furthermore, the deep dehydrogenation of propene is obstructed at the active site which uncovers the origin of high selectivity. Overall, current work gives a comprehensive description of catalytic properties of born nitride catalyst. |
| 资助项目 | NSFC[21573255] ; LiaoNing Natural Science Foundation[2019-ZD-0908] ; Joint Research Fund Liaoning-Shenyang National Laboratory for Materials Science ; State Key Laboratory of Catalytic Materials and Reaction Engineering (RIPP, SINOPEC) ; Special Program for Applied Research on Super Computation of the NSFC Guangdong Joint Fund (the second phase)[U1501501] |
| WOS研究方向 | Chemistry ; Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000531753900005 |
| 出版者 | ELSEVIER |
| 资助机构 | NSFC ; LiaoNing Natural Science Foundation ; Joint Research Fund Liaoning-Shenyang National Laboratory for Materials Science ; State Key Laboratory of Catalytic Materials and Reaction Engineering (RIPP, SINOPEC) ; Special Program for Applied Research on Super Computation of the NSFC Guangdong Joint Fund (the second phase) |
| 源URL | [http://ir.imr.ac.cn/handle/321006/138782]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Sun, XiaoYing; Li, Bo |
| 作者单位 | 1.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Liaoning, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China 3.ShenYang Normal Univ, Shenyang 110034, Liaoning, Peoples R China |
| 推荐引用方式 GB/T 7714 | Si, Chaowei,Lian, Zan,Olanrele, Samson O.,et al. Revealing the origin of the reactivity of metal-free boron nitride catalysts in oxidative dehydrogenation of propane[J]. APPLIED SURFACE SCIENCE,2020,519:8. |
| APA | Si, Chaowei,Lian, Zan,Olanrele, Samson O.,Sun, XiaoYing,&Li, Bo.(2020).Revealing the origin of the reactivity of metal-free boron nitride catalysts in oxidative dehydrogenation of propane.APPLIED SURFACE SCIENCE,519,8. |
| MLA | Si, Chaowei,et al."Revealing the origin of the reactivity of metal-free boron nitride catalysts in oxidative dehydrogenation of propane".APPLIED SURFACE SCIENCE 519(2020):8. |
入库方式： OAI收割
来源：金属研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。