Effect of precursors on the structure and activity of CuO-CoOx/γ-Al2O3catalysts for NO reduction by CO

doi:10.1016/j.jcis.2017.09.031

	Effect of precursors on the structure and activity of CuO-CoOx/γ-Al2O3catalysts for NO reduction by CO
	Zhang, Lingling 1; Yao, Xiaojiang2 ; Lu, Yiyang 3; Sun, Chuanzhi 3; Tang, Changjin 3,4; Gao, Fei 3,4; Dong, Lin 3,4
刊名	Journal of Colloid and Interface Science
	2018
卷号	509 页码:334-345
ISSN号	00219797
DOI	10.1016/j.jcis.2017.09.031
英文摘要	Catalytic reduction of NO by CO was studied over a series of CuO-CoOx/γ-Al2O3catalysts prepared by co-impregnation with different copper and cobalt precursors (acetate and nitrate) to evaluate the structure–activity relationship. The obtained samples were characterized in detail by means of XRD, LRS, XPS, H2-TPR and in situ FT-IR technologies. Results indicate that copper oxide is agglomerated while cobalt oxide is dispersed on γ-Al2O3for the catalyst prepared from copper acetate and cobalt acetate precursors (CuACoA); CuxCo3-xO4spinel is formed and agglomerated on the catalyst prepared from copper nitrate and cobalt nitrate precursors (CuNCoN); while both copper oxide and cobalt oxide could be homogeneously dispersed for the catalyst prepared from copper nitrate and cobalt acetate precursors (CuNCoA), which exhibits the best activity for NO reduction by CO. Probably the synergistic effect between dispersed copper oxide and cobalt oxide is propitious to the oxygen transfer, which could be the reason for its high activities. Finally, a possible reaction mechanism was tentatively proposed to explore the different catalytic performances in NO reduction by CO model reaction. © 2017
电子版国际标准刊号	10957103
语种	英语
内容类型	期刊论文
源URL	[http://119.78.100.138/handle/2HOD01W0/8020]
专题	中国科学院重庆绿色智能技术研究院
作者单位	1.School of Chemistry and Chemical Engineering, Lingnan Normal University, Zhanjiang; 524048, China; 2.Research Center for Atmospheric Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing; 400714, China; 3.Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing; 210093, China; 4.Jiangsu Key Laboratory of Vehicle Emissions Control, Center of Modern Analysis, Nanjing University, Nanjing; 210093, China
推荐引用方式 GB/T 7714	Zhang, Lingling,Yao, Xiaojiang,Lu, Yiyang,et al. Effect of precursors on the structure and activity of CuO-CoOx/γ-Al2O3catalysts for NO reduction by CO[J]. Journal of Colloid and Interface Science,2018,509:334-345.
APA	Zhang, Lingling.,Yao, Xiaojiang.,Lu, Yiyang.,Sun, Chuanzhi.,Tang, Changjin.,...&Dong, Lin.(2018).Effect of precursors on the structure and activity of CuO-CoOx/γ-Al2O3catalysts for NO reduction by CO.Journal of Colloid and Interface Science,509,334-345.
MLA	Zhang, Lingling,et al."Effect of precursors on the structure and activity of CuO-CoOx/γ-Al2O3catalysts for NO reduction by CO".Journal of Colloid and Interface Science 509(2018):334-345.