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A Facile and Efficient Method to Fabricate Highly Selective Nanocarbon Catalysts for Oxidative Dehydrogenation
Zhang, Yajie; Wang, Jia; Rong, Junfeng; Diao, Jiangyong; Zhang, Jiayun; Shi, Chunfeng; Liu, Hongyang; Su, Dangsheng; Liu, HY; Su, DS (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Wenhua Rd 72, Shenyang 110016, Peoples R China.
2017-01-20
Source PublicationCHEMSUSCHEM
ISSN1864-5631
Volume10Issue:2Pages:353-358
AbstractCarbon nanotubes (CNTs) were used in oxidative dehydrogenation (ODH) reactions. Quinone groups on the CNT surface were identified as active sites for the dehydrogenation pathway. Liquid-phase oxidation with HNO3 is one way to generate various oxygen functionalities on the CNT surface but it produces a large amount of acid waste, limiting its industrial application. Here, a facile and efficient oxidative method to prepare highly selective CNT catalysts for ODH of n-butane is reported. Magnesium nitrate salts as precursors were used to produce defect-rich CNTs through solid-phase oxidation. Skeleton defects induced on the CNT surface resulted in the selective formation of quinone groups active for the selective dehydrogenation. The as-prepared catalyst exhibited a considerable selectivity (58%) to C-4 olefins, which is superior to that of CNTs oxidized with liquid HNO3. Through the introduction of MgO nanoparticles on the CNT surface, the desorption of alkenes can be accelerated dramatically, thus enhancing the selectivity. This study provides an attractive way to develop new nanocarbon catalysts.; Carbon nanotubes (CNTs) were used in oxidative dehydrogenation (ODH) reactions. Quinone groups on the CNT surface were identified as active sites for the dehydrogenation pathway. Liquid-phase oxidation with HNO3 is one way to generate various oxygen functionalities on the CNT surface but it produces a large amount of acid waste, limiting its industrial application. Here, a facile and efficient oxidative method to prepare highly selective CNT catalysts for ODH of n-butane is reported. Magnesium nitrate salts as precursors were used to produce defect-rich CNTs through solid-phase oxidation. Skeleton defects induced on the CNT surface resulted in the selective formation of quinone groups active for the selective dehydrogenation. The as-prepared catalyst exhibited a considerable selectivity (58%) to C-4 olefins, which is superior to that of CNTs oxidized with liquid HNO3. Through the introduction of MgO nanoparticles on the CNT surface, the desorption of alkenes can be accelerated dramatically, thus enhancing the selectivity. This study provides an attractive way to develop new nanocarbon catalysts.
description.department[zhang, yajie ; wang, jia ; diao, jiangyong ; zhang, jiayun ; liu, hongyang ; su, dangsheng] chinese acad sci, inst met res, shenyang natl lab mat sci, wenhua rd 72, shenyang 110016, peoples r china ; [zhang, yajie ; zhang, jiayun] univ sci & technol china, sch mat sci & engn, hefei 230026, peoples r china ; [rong, junfeng ; shi, chunfeng] sinopec res inst petr proc, beijing 100083, peoples r china
KeywordBasic Promoter Carbon Nanotubes Magnesium Oxide Oxidative Dehydrogenation Solid-phase Oxidation
Subject AreaChemistry, Multidisciplinary ; Green & Sustainable Science & Technology
Funding OrganizationMinistry of Science and Technology (MOST) [2016YFA0204100]; National Natural Science Foundation of China [21573254, 91545110, 21133010, 51221264, 21261160487, 11504386, 21403261]; Youth Innovation Promotion Association (CAS); "Strategic Priority Research Program" of the Chinese Academy of Sciences [XDA09030103]; Sinopec China
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/78333
Collection中国科学院金属研究所
Corresponding AuthorLiu, HY; Su, DS (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Wenhua Rd 72, Shenyang 110016, Peoples R China.
Recommended Citation
GB/T 7714
Zhang, Yajie,Wang, Jia,Rong, Junfeng,et al. A Facile and Efficient Method to Fabricate Highly Selective Nanocarbon Catalysts for Oxidative Dehydrogenation[J]. CHEMSUSCHEM,2017,10(2):353-358.
APA Zhang, Yajie.,Wang, Jia.,Rong, Junfeng.,Diao, Jiangyong.,Zhang, Jiayun.,...&Su, DS .(2017).A Facile and Efficient Method to Fabricate Highly Selective Nanocarbon Catalysts for Oxidative Dehydrogenation.CHEMSUSCHEM,10(2),353-358.
MLA Zhang, Yajie,et al."A Facile and Efficient Method to Fabricate Highly Selective Nanocarbon Catalysts for Oxidative Dehydrogenation".CHEMSUSCHEM 10.2(2017):353-358.
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