In situ DRIFTS study of the selective reduction of NOx with alcohols over Ag/Al2O3 catalyst: Role of surface enolic species

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境化学与生态毒理学国家重点实验室

	In situ DRIFTS study of the selective reduction of NOx with alcohols over Ag/Al2O3 catalyst: Role of surface enolic species
	Wu, Q; He, H; Yu, YB
刊名	APPLIED CATALYSIS B-ENVIRONMENTAL
	2005
卷号	61 期号:1 页码:107-113
关键词	in situ DRIFTS Ag/Al2O3 selective catalytic reduction enolic species isocyanate species (-NCO)
英文摘要	In situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) was used to clarify the formation and reactivity of enolic species and its role in the formation of the isocyanate species (-NCO) during the selective catalytic reduction of NOx, (SCR of NOx) by alcohols (CH3OH, C2H5OH and isopropyl alcohol (IPA)) over Ag/Al2O3 catalyst. The enolic species, which was derived from the partial oxidation Of C2H5OH and IPA in the presence of O-2 over Ag/Al2O3. had a high reactivity with NO + O-2 resulting in a high surface concentration of -NCO species and high efficiency of NOx reduction when using C2H5OH or IPA as reductants. In contrast, CH3OH was much less effective for the SCR of NOx. The order of the facility for the formation of enolic species and -NCO species was in good agreement with the order of the activities in the SCR of NO, process (C2H5OH > IPA > CH3OH) in the moderate temperature range of 523-623 K. (c) 2005 Elsevier B.V. All rights reserved.
学科主题	Chemistry ; Engineering
研究领域[WOS]	Chemistry ; Engineering
WOS记录号	WOS:000232820600011
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/23182]
专题	生态环境研究中心_环境化学与生态毒理学国家重点实验室
推荐引用方式 GB/T 7714	Wu, Q,He, H,Yu, YB. In situ DRIFTS study of the selective reduction of NOx with alcohols over Ag/Al2O3 catalyst: Role of surface enolic species[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2005,61(1):107-113.
APA	Wu, Q,He, H,&Yu, YB.(2005).In situ DRIFTS study of the selective reduction of NOx with alcohols over Ag/Al2O3 catalyst: Role of surface enolic species.APPLIED CATALYSIS B-ENVIRONMENTAL,61(1),107-113.
MLA	Wu, Q,et al."In situ DRIFTS study of the selective reduction of NOx with alcohols over Ag/Al2O3 catalyst: Role of surface enolic species".APPLIED CATALYSIS B-ENVIRONMENTAL 61.1(2005):107-113.