Grignard reagent reduced nanocarbon material in oxidative dehydrogenation of n-butane

被引：13
作者：
Li, Jiaquan [1 ]
Yu, Peng [1 ]
Xie, Jingxin [1 ]
Zhang, Yajie [2 ]
Liu, Hongyang [2 ]
Su, Dangsheng [3 ]
Rong, Junfeng [1 ]
机构：
[1] Sinopec, Res Inst Petr Proc, Beijing 100083, Peoples R China
[2] Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China
[3] Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China
来源：
JOURNAL OF CATALYSIS | 2018年 / 360卷
基金：
中国国家自然科学基金;
关键词：
Carbon nanotubes; Grignard reagent; Electrophilic oxygen; Reduction; Oxidative dehydrogenation; CARBON NANOTUBES; CATALYTIC-PROPERTIES; SURFACE-CHEMISTRY; VMGO CATALYSTS; OXIDE; NANOCOMPOSITES; GRAPHITE; PROPANE; FACILE;
D O I：
10.1016/j.jcat.2018.01.021
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A modification route of nanocarbon catalyst based on Grignard reagent reduction of oxidized carbon nanotubes (o-CNTs) has been developed for oxidative dehydrogenation (ODH) of n-butane. The o-CNTs contain considerable amount of electrophilic oxygen species which are responsible for deep oxidation side-reactions and the alkene selectivity in ODH is low. After Grignard reduction, the corresponding electrophilic oxygen groups on the surface of the catalyst were eliminated and the basicity increased. As a result, the side-reactions in ODH were prohibited and the alkene selectivity was significantly improved compared with o-CNTs. The chlorine containing Mg/Cl species were found to have positive effect on the improvement of C4H8 alkene yield. This study provides a method of the preparation of nanocarbon catalyst to achieve higher alkene selectivity for the dehydrogenation reaction. (C) 2018 Elsevier Inc. All rights reserved.
引用
收藏
页码：51 / 56
页数：6
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