Alumina-carbon nanotube supports for sulfur-resistant regenerable Pt-based catalysts in NOx reduction

被引：7
作者：
Jiang, Lilong [1 ]
Wang, Yuling [1 ]
Liu, Xian [1 ]
Cao, Yanning [1 ]
Wei, Kemei [1 ]
机构：
[1] Fuzhou Univ, Natl Engn Res Ctr Chem Fertilizer Catalyst, Fuzhou 350002, Fujian, Peoples R China
来源：
CHINESE JOURNAL OF CATALYSIS | 2013年 / 34卷 / 12期
基金：
中国国家自然科学基金;
关键词：
Carbon nanotube; Oxynitride elimination; Sulfur dioxide poisoning; Regeneration; IN-SITU FTIR; STORAGE CATALYSTS; EXPOSURE CONDITIONS; LOW-TEMPERATURE; TRAP CATALYST; SO2; CO; DEACTIVATION; PT/BA/AL2O3; OXIDATION;
D O I：
10.1016/S1872-2067(12)60745-1
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
Alumina-carbon nanotube (Al2O3-CNT) supports were prepared by the decomposition of acetylene on Al2O3. The subsequent impregnation of Pt and Ba yielded Pt/Ba/Al2O3-CNT. Pt/Ba/Al2O3-CNT was characterized by X-ray diffraction, scanning and transmission electron microscopies, N-2 physisorption, X-ray photoelectron spectroscopy, and in-situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS). The relationship between the structure and properties of Pt/Ba/Al2O3-CNT was investigated. Pt/Ba/Al2O3-CNT exhibited much higher resistance to SO2 poisoning and better regeneration ability than Pt/Ba/Al2O3, during NOx reduction in the presence of SO2. In-situ DRIFTS spectra suggested that SO2 had no effect on the NOx storage and reduction process. (C) 2013, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
引用
收藏
页码：2271 / 2276
页数：6
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