Direct Insight into Ethane Oxidative Dehydrogenation over Boron Nitrides

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	Direct Insight into Ethane Oxidative Dehydrogenation over Boron Nitrides
	Huang, Rui; Zhang, Bingsen; Wang, Jia; Wu, Kuang-Hsu; Shi, Wen; Zhang, Yajie; Liu, Yuefeng; Zheng, Anmin; Schloegl, Robert; Su, Dang Sheng
刊名	WILEY-V C H VERLAG GMBH
	2017-09-08
卷号	9 期号:17 页码:3293-3297
关键词	Boron C-h Activation Dehydrogenation Ethylene Production Nitrides
ISSN号	1867-3880
英文摘要	The ultimate objective of chemical conversion is to achieve 100% selectivity from catalysis, and this is also a prodigious challenge for the conversion of light paraffins into olefins, because it involves controlled activation of highly stable aliphatic C-H bonds. Herein, we show that metal-free boron nitride (BN) nanosheets not only enable the oxidative dehydrogenation of ethane to ethylene exclusively at near 10% conversion, but they also deliver a remarkable 60% selectivity at an ethane conversion of 78% and remain stable over 400h at 575 degrees C. Our operando infrared spectroscopy and O-18 isotope tracer study explicitly demonstrates that B-O(H) active sites are formed at the edges of BN through the aid of ethane, and the dehydrogenation circle is completed over these B-O sites by the assistance of O-2.; The ultimate objective of chemical conversion is to achieve 100% selectivity from catalysis, and this is also a prodigious challenge for the conversion of light paraffins into olefins, because it involves controlled activation of highly stable aliphatic C-H bonds. Herein, we show that metal-free boron nitride (BN) nanosheets not only enable the oxidative dehydrogenation of ethane to ethylene exclusively at near 10% conversion, but they also deliver a remarkable 60% selectivity at an ethane conversion of 78% and remain stable over 400h at 575 degrees C. Our operando infrared spectroscopy and O-18 isotope tracer study explicitly demonstrates that B-O(H) active sites are formed at the edges of BN through the aid of ethane, and the dehydrogenation circle is completed over these B-O sites by the assistance of O-2.
学科主题	Chemistry, Physical
语种	英语
资助机构	National Natural Science Foundation (NSFC) of China [21133010, 21473223, 51221264, 21261160487, 91545119]; "Strategic Priority Research Program" of the Chinese Academy of Sciences [XDA09030103]; CAS/SAFEA International Partnership Program for Creative Research Teams
公开日期	2018-01-10
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/79101]
专题	金属研究所_中国科学院金属研究所
通讯作者	Su, DS (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China.; Su, DS (reprint author), Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Energy Res Resources Div, 457 Zhongshan Rd, Dalian 116023, Peoples R China.; Su, DS (reprint author), Max Planck Gesell, Fritz Haber Inst, Faradayweg 4-6, D-14195 Berlin, Germany.
推荐引用方式 GB/T 7714	Huang, Rui,Zhang, Bingsen,Wang, Jia,et al. Direct Insight into Ethane Oxidative Dehydrogenation over Boron Nitrides[J]. WILEY-V C H VERLAG GMBH,2017,9(17):3293-3297.
APA	Huang, Rui.,Zhang, Bingsen.,Wang, Jia.,Wu, Kuang-Hsu.,Shi, Wen.,...&Su, DS .(2017).Direct Insight into Ethane Oxidative Dehydrogenation over Boron Nitrides.WILEY-V C H VERLAG GMBH,9(17),3293-3297.
MLA	Huang, Rui,et al."Direct Insight into Ethane Oxidative Dehydrogenation over Boron Nitrides".WILEY-V C H VERLAG GMBH 9.17(2017):3293-3297.