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题名: Nanofibrous SUZ-4 loading Pt used for selective catalytic reduction of NOx by hydrogen
作者: Gao, Shan1, 2;  Wang, Xinping1, 2;  Li, Mingrun3;  Wang, Xuzhen1, 2;  Li, Jun1, 2;  Feng, Jiapeng1, 2
关键词: Nanofibrous SUZ-4 ;  Pt/HSUZ-4 ;  H-2-SCR ;  Morphology
刊名: MICROPOROUS AND MESOPOROUS MATERIALS
发表日期: 2014
DOI: 10.1016/j.micromeso.2013.09.023
卷: 183, 页:185-191
收录类别: SCI
文章类型: Article
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
英文摘要: Nanofibrous SUZ-4 zeolite (NF) was synthesized for preparing the Pt/HSUZ-4 catalyst used in the selective catalytic reduction of NOx by hydrogen (H-2-SCR). The seed dissolution during the crystallization played an important role for the nanofibrous SUZ-4 formation. It was found that the zeolite NF is oriented along the 10-ring channels, and it has much more Bronsted acid sites on its external surface compared with general SUZ-4 zeolite. Consequently, Pt primarily existed as the well-dispersed particles (similar to 5 nm) on the NF external surface for the Pt/NF catalyst prepared by impregnation. In comparison with 0.1 wt.% Pt/HZSM-5 as well as general 0.1 wt.% Pt/HSUZ-4, the 0.1 wt.% Pt/NF catalyst gave much higher activity and N-2 selectivity in the H-2-SCR. For identifying the Pt ions in SUZ-4 zeolite channels, the band at 1652 cm(-1) ascribed to nitrous species adsorbed on the ions was proposed. (C) 2013 Elsevier Inc. All rights reserved.
关键词[WOS]: ZEOLITE SUZ-4 ;  ACID SITES ;  H-2-SCR ;  PT/MGO-CEO2 ;  FERRIERITE ;  MORDENITE ;  MECHANISM ;  OXIDES ;  MFI
语种: 英语
WOS记录号: WOS:000327284900025
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/145552
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Dalian Univ Technol, Sch Environm Sci & Technol, Key Lab Ind Ecol & Environm Engn MOE, Dalian 116024, Peoples R China
2.Dalian Univ Technol, Sch Environm Sci & Technol, State Key Lab Fine Chem, Dalian 116024, Peoples R China
3.Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China

Recommended Citation:
Gao, Shan,Wang, Xinping,Li, Mingrun,et al. Nanofibrous SUZ-4 loading Pt used for selective catalytic reduction of NOx by hydrogen[J]. MICROPOROUS AND MESOPOROUS MATERIALS,2014,183:185-191.
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