Improvement of catalytic activity over Cu-Fe modified Al-rich Beta catalyst for the selective catalytic reduction of NOx with NH3
文献类型：期刊论文
| 作者 | Gies, Hermann3; Moini, Ahmad9; Maurer, Stefan8; Kolb, Ute7; Bao, Xinhe6; Xiao, Feng-Shou1; Feyen, Mathias8; Zhang, Weiping2; Mueller, Ulrich8; Yokoi, Toshiyuki5 |
| 刊名 | MICROPOROUS AND MESOPOROUS MATERIALS
 |
| 出版日期 | 2016-12-01 |
| 卷号 | 236页码:211-217 |
| ISSN号 | 1387-1811 |
| 关键词 | Al-rich Beta Cu-fe-beta Nh3-scr Synergistic Effect Sulfur Resistance |
| DOI | 10.1016/j.micromeso.2016.08.042 |
| 文献子类 | Article |
| 英文摘要 | Copper and iron bimetal modified Al-rich Beta zeolites from template-free synthesis were prepared for selective catalytic reduction (SCR) of NOX with NH3 in exhaust gas streams. Comparing to the Cu-based and Fe-based mono-component Beta catalysts, Cu(3.0)-Fe(1.3)-Beta bi-component catalyst shows better low-temperature activity and wider reaction-temperature window. Over 80% of NO conversion can be achieved at the temperature region of 125-500 degrees C. Due to the synergistic effect of copper and iron evidenced by XRD, UV-Vis-NIR, EPR and XPS measurements, the dispersion state of active components as well as the ratio of Cu2+/Cu+ and Fe3+/Fe2+ were improved over Cu(3.0)-Fe(1.3)-Beta. Isolated Cu2+ and Fe3+ ions which located at the exchange sites could be the active species at the low-temperature region, while FeOX cluster species may be more important to the high-temperature activity. During the test of sulfur resistance, Fe-containing samples including Cu(3.0)-Fe(1.3)-Beta and Fe(2.7)-Beta-4 present better performance compared to Cu(4.1)-Beta-4. Deactivation of Cu-based catalyst is attributed to the easier deposition of sulfates over the surface according to the results of TGA coupled with TPD experiments. (C) 2016 Elsevier Inc. All rights reserved. |
| WOS关键词 | NITRIC-OXIDE ; ORGANOTEMPLATE-FREE ; EXCHANGED ZEOLITES ; FE-ZSM-5 ; AMMONIA ; SITES ; NH3-SCR ; CU-ZSM-5 ; EXHAUST ; EPR |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE BV |
| WOS记录号 | WOS:000385899600024 |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/169934]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 通讯作者 | Zhang, Weiping; Shi, Chuan |
| 作者单位 | 1.Zhejiang Univ, Dept Chem, Hangzhou 310028, Zhejiang, Peoples R China 2.Dalian Univ Technol, Sch Chem, State Key Lab Fine Chem, Dalian 116024, Peoples R China 3.Ruhr Univ Bochum, Inst Geol Mineral & Geophys, Bochum, Germany 4.Katholieke Univ Leuven, Ctr Surface Chem & Catalysis, Leuven, Belgium 5.Tokyo Inst Technol, Chem Resources Lab, Yokohama, Kanagawa, Japan 6.Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China 7.Johannes Gutenberg Univ Mainz, Inst Phys Chem, D-55128 Mainz, Germany 8.BASF SE, Proc Res & Chem Engn, D-67056 Ludwigshafen, Germany 9.BASF Corp, Catalysts LLC, Iselin, NJ 08830 USA |
| 推荐引用方式 GB/T 7714 | Gies, Hermann,Moini, Ahmad,Maurer, Stefan,et al. Improvement of catalytic activity over Cu-Fe modified Al-rich Beta catalyst for the selective catalytic reduction of NOx with NH3[J]. MICROPOROUS AND MESOPOROUS MATERIALS,2016,236:211-217. |
| APA | Gies, Hermann.,Moini, Ahmad.,Maurer, Stefan.,Kolb, Ute.,Bao, Xinhe.,...&Zhu, Yongjun.(2016).Improvement of catalytic activity over Cu-Fe modified Al-rich Beta catalyst for the selective catalytic reduction of NOx with NH3.MICROPOROUS AND MESOPOROUS MATERIALS,236,211-217. |
| MLA | Gies, Hermann,et al."Improvement of catalytic activity over Cu-Fe modified Al-rich Beta catalyst for the selective catalytic reduction of NOx with NH3".MICROPOROUS AND MESOPOROUS MATERIALS 236(2016):211-217. |
入库方式： OAI收割
来源：大连化学物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。