Oxygen breaks into carbon nanotubes and abstracts hydrogen from propane

IMR OpenIR

	Oxygen breaks into carbon nanotubes and abstracts hydrogen from propane
	Huang, Rui; Xu, Junyuan; Wang, Jia; Sun, Xiaoyan; Qi, Wei; Liang, Changhai; Su, Dang Sheng; dssu@imr.ac.cn
	2016
发表期刊	CARBON
ISSN	0008-6223
卷号	96 页码:631-640
摘要	We have revealed that molecular oxygen breaks into carbon nanotubes forming active sites to abstract hydrogen from propane. Various carbonaceous species (carbon defects and debris) on carbon nanotubes were identified and their effects on the oxo-functionalization as well as the catalytic performance in the oxidative dehydrogenation of propane were thoroughly investigated. The results indicate that certain amount of accessible skeleton defects is beneficial to the selective introduction of ether and ketonic carbonyl groups. However, amorphous carbons are poorly selective during oxo-functionalization and the related functionalities decompose easily during the long-term catalytic test. The proportion of ether and ketonic carbonyl groups obtained from oxygen functionalization reaches to 93%, which is twice more than that obtained from acidic solution treatment. Turnover frequency of 1.5 h(-1) in the oxidative dehydrogenation of propane is successfully correlated with ketonic carbonyl groups (C=O), while there is no obvious correlation between the activity and the amount of ether groups (C-O-C). (C) 2015 Elsevier Ltd. All rights reserved.
部门归属	[huang, rui ; xu, junyuan ; wang, jia ; sun, xiaoyan ; qi, wei ; su, dang sheng] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china ; [huang, rui ; liang, changhai] dalian univ technol, lab adv mat & catalyt engn, dalian 116024, peoples r china
资助者	MOST [2011CBA00504]; NSFC of China [21133010, 21203215, 51221264, 21261160487]; "Strategic Priority Research Program" of the Chinese Academy of Sciences [XDA09030103]
收录类别	sci
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/75049
专题	中国科学院金属研究所
通讯作者	dssu@imr.ac.cn
推荐引用方式 GB/T 7714	Huang, Rui,Xu, Junyuan,Wang, Jia,et al. Oxygen breaks into carbon nanotubes and abstracts hydrogen from propane[J]. CARBON,2016,96:631-640.
APA	Huang, Rui.,Xu, Junyuan.,Wang, Jia.,Sun, Xiaoyan.,Qi, Wei.,...&dssu@imr.ac.cn.(2016).Oxygen breaks into carbon nanotubes and abstracts hydrogen from propane.CARBON,96,631-640.
MLA	Huang, Rui,et al."Oxygen breaks into carbon nanotubes and abstracts hydrogen from propane".CARBON 96(2016):631-640.