Investigation of Water and Sulfur Tolerance of Precipitable Silver Compound Ag/Al2O3 Catalysts in H-2-Assisted C3H6-SCR of NOx

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	Investigation of Water and Sulfur Tolerance of Precipitable Silver Compound Ag/Al2O3 Catalysts in H-2-Assisted C3H6-SCR of NOx
	Wang, Zhijian; Xu, Guangyan; Liu, Xin; Wei, Tao; Yu, Yunbo; He, Hong
刊名	ACS OMEGA
	2020-11-17
卷号	5 期号:45 页码:29593-29600
ISSN号	2470-1343
英文摘要	Ag/Al2O3 catalysts containing different precipitable silver compounds (AgCl, Ag2SO4, and Ag3PO4) were synthesized and investigated for NOx reduction in H-2-assisted C3H6-selective catalytic reduction (SCR). The samples were systematically characterized by N-2 adsorption, X-ray diffraction (XRD), UV-Vis, X-ray photoelectron spectroscopy (XPS), and high-resolution transmission electron microscopy (HR-TEM). N-2 adsorption revealed that the introduction of anions (Cl-, SO42-, and PO43-) did not significantly affect the surface and structural properties of the Al2O3 support. However, XRD patterns and HR-TEM images indicated that the addition of Cl- anions caused the agglomeration of silver species to form large AgCl particles on the AgCl/Al2O3 catalysts. In contrast, the silver species dispersed well on Ag2SO4/Al2O3 and Ag3PO4/Al2O3 catalysts. In situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) revealed that partial oxidation of C(3)H(6 )on Ag2SO4/Al2O3 produced large amounts of reactive enolic species, while it tended to yield inert formate on AgCl/Al2O3. As a result, Ag2SO4/Al2O3 catalysts, especially 3% Ag2SO4/Al2O3, exhibited superior water and sulfur tolerance in H-2-assisted C3H6-SCR.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/45091]
专题	生态环境研究中心_大气污染控制中心
推荐引用方式 GB/T 7714	Wang, Zhijian,Xu, Guangyan,Liu, Xin,et al. Investigation of Water and Sulfur Tolerance of Precipitable Silver Compound Ag/Al2O3 Catalysts in H-2-Assisted C3H6-SCR of NOx[J]. ACS OMEGA,2020,5(45):29593-29600.
APA	Wang, Zhijian,Xu, Guangyan,Liu, Xin,Wei, Tao,Yu, Yunbo,&He, Hong.(2020).Investigation of Water and Sulfur Tolerance of Precipitable Silver Compound Ag/Al2O3 Catalysts in H-2-Assisted C3H6-SCR of NOx.ACS OMEGA,5(45),29593-29600.
MLA	Wang, Zhijian,et al."Investigation of Water and Sulfur Tolerance of Precipitable Silver Compound Ag/Al2O3 Catalysts in H-2-Assisted C3H6-SCR of NOx".ACS OMEGA 5.45(2020):29593-29600.