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学科主题: 物理化学
题名: Study on the effect of alkali promoters on the formation of cobalt carbide (Co2C) and on the performance of Co2C via CO hydrogenation reaction
作者: Pei, Yanpeng1, 2;  Ding, Yunjie1, 3;  Zhu, Hejun1;  Zang, Juan1, 2;  Song, Xiangen1, 2;  Dong, Wenda1, 2;  Wang, Tao1;  Yan, Li1;  Lu, Yuan1
通讯作者: 丁云
关键词: Cobalt carbide (Co2C) synthesis ;  Additive-assisted method ;  CO hydrogenation reaction ;  Alcohols
刊名: REACTION KINETICS MECHANISMS AND CATALYSIS
发表日期: 2014-04-01
DOI: 10.1007/s11144-013-0663-1
卷: 111, 期:2, 页:505-520
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical
研究领域[WOS]: Chemistry
英文摘要: The present investigation deals with an alkali metal assisted synthesis of cobalt carbide (Co2C), starting from carburizing reduced complex precursors (obtained from Co3O4 with the addition of Li2O, Na2O and K2O) using CO as a carburization source. It is found that the Co2C formation could be significantly accelerated by the Li component. A comparative study reveals that the promotion effect of Li component may be related to the H-2 adsorption on the reduced precursor, which enhanced the ability of the precursor to react with CO. Furthermore, the Co2C prepared from the precursor containing Li component shows a considerable increase in activity for CO hydrogenation and an improved fraction of higher alcohols in the total alcohol products, compared to the Co2C prepared without promoters. An attempt is made to elucidate the catalytic behavior of the as-prepared Co2C samples.
关键词[WOS]: TRANSITION-METAL CARBIDES ;  FISCHER-TROPSCH REACTION ;  CATALYTIC-PROPERTIES ;  TUNGSTEN CARBIDE ;  WATER-GAS ;  SURFACE ;  CARBON ;  HYDROCARBONS ;  CHEMISTRY ;  MECHANISM
语种: 英语
WOS记录号: WOS:000332977400007
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/144306
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch Chinese Acad Sci, Beijing 100039, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China

Recommended Citation:
Pei, Yanpeng,Ding, Yunjie,Zhu, Hejun,et al. Study on the effect of alkali promoters on the formation of cobalt carbide (Co2C) and on the performance of Co2C via CO hydrogenation reaction[J]. REACTION KINETICS MECHANISMS AND CATALYSIS,2014,111(2):505-520.
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