A viewpoint on catalytic origin of boron nitride in oxidative dehydrogenation of light alkanes

doi:10.1016/S1872-2067(18)63060-8

	A viewpoint on catalytic origin of boron nitride in oxidative dehydrogenation of light alkanes
	Wang DQ(王东琪); Shi, L; Wang, DQ; Lu, AH
刊名	CHINESE JOURNAL OF CATALYSIS
	2018
卷号	39 期号:5 页码:908-913
关键词	Boron nitride Zig-zag edge B-OH group Light alkanes Oxidative dehydrogenation Induction period
ISSN号	0253-9837
DOI	10.1016/S1872-2067(18)63060-8
其他题名	氮化硼催化低碳烷烃氧化脱氢的活性起源探讨
文献子类	Article
英文摘要	Oxidative dehydrogenation of light alkanes to alkenes is an attractive alternative route for industrial direct dehydrogenation because of favorable thermodynamic and kinetic characteristics, but encounters difficulties in selectivity control for alkenes because of over-oxidation reactions that produce a substantial amount of undesired carbon oxides. Recent progress has revealed that boron nitride is a highly promising catalyst in the oxidative dehydrogenation of light alkanes because of its superior selectivity for and high productivity of light alkenes, negligible formation of CO2, and remarkable catalyst stability. From this viewpoint, recent works on boron nitride in the oxidative dehydrogenations of ethane, propane, butane, and ethylbenzene are reviewed, and the emphasis of this viewpoint is placed on discussing the catalytic origin of boron nitride in oxidative dehydrogenation reactions. After analyzing recent progress in the use of boron nitride for oxidative dehydrogenation reactions and finding much new evidence, we conclude that pure boron nitride is catalytically inert, and an activation period is required under the reaction conditions; this process is accompanied by an oxygen functionalization at the edge of boron nitride; the B-O species themselves have no catalytic activity in C-H cleavage, and the B-OH groups, with the assistance of molecular oxygen, play the key role in triggering the oxidative dehydrogenation of propane; the dissociative adsorption of molecular oxygen is involved in the reaction process; and a straightforward strategy for preparing an active boron nitride catalyst with hydroxyl groups at the edges can efficiently enhance the catalytic efficacy. A new redox reaction cycle based on the B-OH sites is also proposed. Furthermore, as this is a novel catalytic system, there is an urgent need to develop new methods to optimize the catalytic performances, clarify the catalytic function of boron species in the alkane ODH reactions, and disclose the reaction mechanism under realistic reaction conditions. (C) 2018, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
电子版国际标准刊号	1872-2067
WOS关键词	OXIDE-BASED CATALYSTS ; SELECTIVE OXIDATION ; PROPANE ; ETHANE ; KINETICS ; CONVERSION ; NANOSHEETS ; PROPYLENE ; CHEMISTRY ; PROMOTER
WOS研究方向	Chemistry ; Engineering
语种	英语
CSCD记录号	CSCD:6231825
WOS记录号	WOS:000431834500003
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/285897]
专题	高能物理研究所_多学科研究中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Wang DQ,Shi, L,Wang, DQ,et al. A viewpoint on catalytic origin of boron nitride in oxidative dehydrogenation of light alkanes[J]. CHINESE JOURNAL OF CATALYSIS,2018,39(5):908-913.
APA	王东琪,Shi, L,Wang, DQ,&Lu, AH.(2018).A viewpoint on catalytic origin of boron nitride in oxidative dehydrogenation of light alkanes.CHINESE JOURNAL OF CATALYSIS,39(5),908-913.
MLA	王东琪,et al."A viewpoint on catalytic origin of boron nitride in oxidative dehydrogenation of light alkanes".CHINESE JOURNAL OF CATALYSIS 39.5(2018):908-913.