Enhancement of low-temperature activity over Cu-exchanged zeolite beta from organotemplate-free synthesis for the selective catalytic reduction of NO with NH3 in exhaust gas streams
文献类型：期刊论文
| 作者 | Xu, Li1; Shi, Chuan1; Zhang, Zhaoshun1; Gies, Hermann2; Xiao, Feng-Shou3; De Vos, Dirk4; Yokoi, Toshiyuki5; Bao, Xinhe6; Feyen, Mathias7; Maurer, Stefan7 |
| 刊名 | microporous and mesoporous materials
 |
| 出版日期 | 2014-12-01 |
| 卷号 | 200页码:304-310 |
| 关键词 | Organotemplate-free Beta zeolite Cu-Beta catalyst NH3-SCR H-2-TPR CO-FTIR |
| 英文摘要 | a series of cu-exchanged al-rich beta zeolites from organotemplate-free synthesis was prepared and investigated for selective catalytic reduction (scr) of nox with nh3 in exhaust gas streams. in comparison to conventional cu-beta zeolite with si/al ratio of 19, cu-beta zeolite with si/al ratio of 4 is a superior low-temperature nh3-scr catalyst. very high no conversion (>95%) can be achieved at temperatures as low as 150 to similar to 400 degrees c. xrd, uv-vis-nir and nh3-tpd measurements show that more isolated cu2+ ions are present at the exchange sites of al-rich beta zeolite. the combination of co-ftir and h-2-tpr analysis demonstrates that cu2+ ions could be reduced more readily on the al-rich beta than on the conventional beta probably due to the proximity of the isolated cu2+ ions. these can be correlated to the enhancement of no conversion at lower temperatures over cu-exchanged al-rich beta zeolite. (c) 2014 elsevier inc. all rights reserved. |
| WOS标题词 | science & technology ; physical sciences ; technology |
| 类目[WOS] | chemistry, applied ; chemistry, physical ; nanoscience & nanotechnology ; materials science, multidisciplinary |
| 研究领域[WOS] | chemistry ; science & technology - other topics ; materials science |
| 关键词[WOS] | diesel-engine ; ammonia ; sites ; scr ; cu/sapo-34 ; cu-ssz-13 ; cu-zsm-5 ; route ; ions ; ftir |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000343630100039 |
| 公开日期 | 2016-05-09 |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/145874]  |
| 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 |
| 作者单位 | 1.Dalian Univ Technol, State Key Lab Fine Chem, Sch Chem, Dalian 116024, Peoples R China 2.Ruhr Univ Bochum, Inst Geol Mineral & Geophys, Bochum, Germany 3.Zhejiang Univ, Dept Chem, Hangzhou 310028, Zhejiang, Peoples R China 4.Katholieke Univ Leuven, Ctr Surface Chem & Catalysis, Leuven, Belgium 5.Tokyo Inst Technol, Chem Resources Lab, Yokohama, Kanagawa 227, Japan 6.Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China 7.BASF SE, D-67056 Ludwigshafen, Germany 8.BASF Corp, Chem Res & Engn, Iselin, NJ 08830 USA |
| 推荐引用方式 GB/T 7714 | Xu, Li,Shi, Chuan,Zhang, Zhaoshun,et al. Enhancement of low-temperature activity over Cu-exchanged zeolite beta from organotemplate-free synthesis for the selective catalytic reduction of NO with NH3 in exhaust gas streams[J]. microporous and mesoporous materials,2014,200:304-310. |
| APA | Xu, Li.,Shi, Chuan.,Zhang, Zhaoshun.,Gies, Hermann.,Xiao, Feng-Shou.,...&Zhang, Weiping.(2014).Enhancement of low-temperature activity over Cu-exchanged zeolite beta from organotemplate-free synthesis for the selective catalytic reduction of NO with NH3 in exhaust gas streams.microporous and mesoporous materials,200,304-310. |
| MLA | Xu, Li,et al."Enhancement of low-temperature activity over Cu-exchanged zeolite beta from organotemplate-free synthesis for the selective catalytic reduction of NO with NH3 in exhaust gas streams".microporous and mesoporous materials 200(2014):304-310. |
入库方式： OAI收割
来源：大连化学物理研究所
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