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	Potassium-decorated active carbon supported Co-Mo-based catalyst for water-gas shift reaction
	Lian, Yixin ; Xiao, RuiFen（Fujian Normal Univ, Minnan Sci & Technol Inst） ; Fang, Weiping ; Fang WP(方维平) ; Yang, Yiquan ; Yang YQ(杨意泉)
	2011-02-01
关键词	active carbon potassium-decorated active phase Co-Mo-based catalyst water-gas shift
英文摘要	The effect of potassium-decoration was studied on the activity of water-gas shift (WGS) reaction over the Co-Mo-based catalysts supported on active carbon (AC), which was prepared by incipient wetness co-impregnation method. The decoration of potassium on active carbon in advance enhances the activities of the CoMo-K/AC catalysts for WGS reaction. Highest activity (about 92% conversion) was obtained at 250 degrees C for the catalyst with an optimum K(2)O/AC weight ratio in the range from 0.12 to 0.15. The catalysts were characterized by TPR and EPR, and the results show that activated carbon decorated with potassium makes Co-Mo species highly dispersed, and thus easily reduced and sulfurized. XRD results show that an appropriate content of potassium-decoration on active carbon supports may favors the formation of highly dispersed Co(9)S(8)-type structures which are situated on the edge or a site in contact with MoS(2), K-Mo-O-S, Mo-S-K phase. Those active species are responsible for the high activity of CoMo-K/AC catalysts.
语种	英语
出版者	ELSEVIER SCIENCE BV
内容类型	期刊论文
源URL	[http://dx.doi.org/doi:10.1016/S1003-9953(10)60154-5]
专题	化学化工－已发表论文
推荐引用方式 GB/T 7714	Lian, Yixin,Xiao, RuiFen,Fang, Weiping,et al. Potassium-decorated active carbon supported Co-Mo-based catalyst for water-gas shift reaction[J],2011.
APA	Lian, Yixin,Xiao, RuiFen,Fang, Weiping,方维平,Yang, Yiquan,&杨意泉.(2011).Potassium-decorated active carbon supported Co-Mo-based catalyst for water-gas shift reaction..
MLA	Lian, Yixin,et al."Potassium-decorated active carbon supported Co-Mo-based catalyst for water-gas shift reaction".(2011).

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