QQ客服 官方微博 反馈留言

	Effects of impregnation strategy on structure and performance of bimetallic cofe/ac catalysts for higher alcohols synthesis from syngas
	Du, Hong1,3; Zhu, Hejun1; Zhao, Ziang1,3; Dong, Wenda1; Luo, Wenting1,3; Lu, Wei1; Jiang, Miao1; Liu, Tao1; Ding, Yunjie1,2
刊名	Applied catalysis a-general
	2016-08-05
卷号	523页码:263-271
关键词	Higher alcohols synthesis Bimetallic catalysts Impregnation strategy Cobalt Iron Activated carbon
ISSN号	0926-860X
DOI	10.1016/j.apcata.2016.06.022
通讯作者	Zhu, hejun(zhuhj@dicp.ac.cn) ; Ding, yunjie(dyj@dicp.ac.cn)
英文摘要	Higher alcohols synthesis from syngas via fischer-tropsch reaction has been studied on activated carbon supported bimetallic cofe (denoted as cofe/ac) catalysts. the effect of impregnation strategy on the structure and performance of the catalysts was investigated by means of n-2 adsorption, hrtem, ex-situ/in-situ xrd, co adsorption, co-tpd, xps and co hydrogenation. the results showed that the sequentially impregnated 15co-5fe/ac catalyst prepared with iron precursor firstly and then cobalt precursor had the highest co uptake, metal dispersion and the maximum cobalt surface content, resulting in the enhancement of co hydrogenation activity as well as the yield of mixed alcohols. on the other hand, the selectivity towards higher alcohols (c2+) was hardly affected by the impregnation sequence. it was found that the activated carbon facilitated the formation of co2c species and doping of fe into the 15co/ac catalyst promoted the formation of co-fe alloy species. both of co2c and co-fe alloy species were observed in all the co-impregnated and sequentially impregnated catalysts after reaction. it was inferred that co/co2c as well as co-fe alloy species might be responsible for the synthesis of alcohols via co hydrogenation. (c) 2016 elsevier b.v. all rights reserved.
WOS关键词	FISCHER-TROPSCH SYNTHESIS ; SUPPORTED COBALT CATALYSTS ; MESOPOROUS SILICAS ; CO HYDROGENATION ; CO/AC CATALYSTS ; CARBON-MONOXIDE ; MIXED ALCOHOLS ; SYNTHESIS GAS ; IRON ; FE
WOS研究方向	Chemistry ; Environmental Sciences & Ecology
WOS类目	Chemistry, Physical ; Environmental Sciences
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000381593700028
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2374428
专题	中国科学院大学
通讯作者	Zhu, Hejun; Ding, Yunjie
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, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Du, Hong,Zhu, Hejun,Zhao, Ziang,et al. Effects of impregnation strategy on structure and performance of bimetallic cofe/ac catalysts for higher alcohols synthesis from syngas[J]. Applied catalysis a-general,2016,523:263-271.
APA	Du, Hong.,Zhu, Hejun.,Zhao, Ziang.,Dong, Wenda.,Luo, Wenting.,...&Ding, Yunjie.(2016).Effects of impregnation strategy on structure and performance of bimetallic cofe/ac catalysts for higher alcohols synthesis from syngas.Applied catalysis a-general,523,263-271.
MLA	Du, Hong,et al."Effects of impregnation strategy on structure and performance of bimetallic cofe/ac catalysts for higher alcohols synthesis from syngas".Applied catalysis a-general 523(2016):263-271.

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。