Effect of precursors on the structure and activity of CuO-CoOx/y-Al2O3 catalysts for NO reduction by CO

doi:10.1016/j.jcis.2017.09.031

CORC > 重庆绿色智能技术研究院 > 中国科学院重庆绿色智能技术研究院 > 大气环境研究中心

	Effect of precursors on the structure and activity of CuO-CoOx/y-Al2O3 catalysts 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; Zhang, Lingling 5; Yao, Xiaojiang 6; Lu, Yiyang 7
刊名	JOURNAL OF COLLOID AND INTERFACE SCIENCE
	2018
卷号	509 页码:334-345
关键词	Precursors Homogeneously dispersed CuO-CoOx/gamma-Al2O3 Synergistic effect NO reduction by CO
ISSN号	0021-9797
DOI	10.1016/j.jcis.2017.09.031
通讯作者	Dong, L (reprint author), Nanjing Univ, 22 Hankou Rd, Nanjing 210093, Jiangsu, Peoples R China.
英文摘要	Catalytic reduction of NO by CO was studied over a series of CuO-CoOx/gamma-Al2O3 catalysts 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, H-2-TPR and in situ FT-IR technologies. Results indicate that copper oxide is agglomerated while cobalt oxide is dispersed on gamma-Al2O3 for the catalyst prepared from copper acetate and cobalt acetate precursors (CuACoA); CuxCo(3-x)O(4) spinel 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. (C) 2017 Elsevier Inc. All rights reserved.
资助项目	National Natural Science Foundation of China[21677069] ; Guangdong Natural Science Foundation[2015A030310195] ; Distinguished Young Talents Foundation in Higher Education of Guangdong[2013LYM_0054] ; Doctoral Special Foundation of Lingnan Normal University[ZL1201]
WOS研究方向	Chemistry
语种	英语
出版者	ACADEMIC PRESS INC ELSEVIER SCIENCE
WOS记录号	WOS:000413389900036
内容类型	期刊论文
源URL	[http://172.16.51.4:88/handle/2HOD01W0/94]
专题	大气环境研究中心
通讯作者	Dong, Lin; Dong, Lin
作者单位	1.Lingnan Normal Univ, Sch Chem & Chem Engn, Zhanjiang 524048, Peoples R China 2.Chinese Acad Sci, Res Ctr Atmospher Environm, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China 3.Nanjing Univ, Sch Chem & Chem Engn, Key Lab Mesoscop Chem, MOE, Nanjing 210093, Jiangsu, Peoples R China 4.Nanjing Univ, Ctr Modern Anal, Jiangsu Key Lab Vehicle Emiss Control, Nanjing 210093, Jiangsu, Peoples R China 5.Lingnan Normal Univ, Sch Chem & Chem Engn, Zhanjiang 524048, Peoples R China 6.Chinese Acad Sci, Res Ctr Atmospher Environm, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China 7.Nanjing Univ, Sch Chem & Chem Engn, Key Lab Mesoscop Chem, MOE, Nanjing 210093, Jiangsu, Peoples R China 8.Nanjing Univ, Ctr Modern Anal, Jiangsu Key Lab Vehicle Emiss Control, Nanjing 210093, Jiangsu, Peoples R 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/y-Al2O3 catalysts 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/y-Al2O3 catalysts 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/y-Al2O3 catalysts for NO reduction by CO".JOURNAL OF COLLOID AND INTERFACE SCIENCE 509(2018):334-345.