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	Selective oxidation of ammonia over copper-silver-based catalysts
	Yang, M; Wu, CQ; Zhang, CB; He, H
	2004
会议名称	1st China/Japan Workshop on Environmental Catalysis and Eco-Materials
会议日期	OCT 07-10, 2003
会议地点	Beijing, PEOPLES R CHINA
关键词	enolic species selective catalytic reduction of NO (SCR of NO) in situ DRIFT'S reaction mechanism
英文摘要	The selective catalytic reduction (SCR) of NO by C3H6 in excess oxygen was evaluated and compared over Ag/Al2O3 and Cu/Al2O3 catalysts. Ag/Al2O3 showed a high activity for NO reduction. However, Cu/Al2O3 showed a high activity for C3H6 oxidation. The partial oxidation of C3H6 gave surface enolic species and acetate species on the Ag/Al2O3, but only an acetate species was clearly observed on the Cu/Al2O3. The enolic species is a more active intermediate towards NO + O-2 to yield-NCO species than the acetate species on the Ag/Al2O3 catalyst. The Ag and Cu metal loadings and phase changes on Al2O3 support can affect the activity and selectivity of Ag/Al2O3 and Cu/Al2O3 catalysts, but the formation of enolic species is the main reason why the activity of the Ag/Al2O3 catalyst for NO reduction is higher than that of the Cu/Al2O3 catalyst. (C) 2004 Elsevier B.V. All rights reserved.
内容类型	会议论文
源URL	[http://ir.rcees.ac.cn/handle/311016/24779]
专题	生态环境研究中心_环境水质学国家重点实验室
推荐引用方式 GB/T 7714	Yang, M,Wu, CQ,Zhang, CB,et al. Selective oxidation of ammonia over copper-silver-based catalysts[C]. 见:1st China/Japan Workshop on Environmental Catalysis and Eco-Materials. Beijing, PEOPLES R CHINA. OCT 07-10, 2003.

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