Size controlled ZSM-5 on the structure and performance of Fe catalyst in the selective catalytic reduction of NOx with NH3

被引：29
|
作者：
Feng, Baijun [1 ]
Wang, Zhong [2 ]
Sun, Yuanyuan [2 ]
Zhang, Chuanhui [2 ]
Tang, Sifu [2 ]
Li, Xuebing [2 ]
Huang, Xiang [1 ]
机构：
[1] Ocean Univ China, Inst Mat Sci & Engn, Qingdao 266100, Peoples R China
[2] Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Key Lab Biofuels, Qingdao 266101, Peoples R China
来源：
CATALYSIS COMMUNICATIONS | 2016年 / 80卷
基金：
中国博士后科学基金; 中国国家自然科学基金;
关键词：
Fe/ZSM-5; NH3-SCR; Size effect; Isolated Fe3+; FE-ZSM-5; CATALYSTS; NITRIC-OXIDE; DENO(X) CATALYSTS; AMMONIA; STATE; OXIDATION; ZEOLITES; EXCHANGE; SITES;
D O I：
10.1016/j.catcom.2016.02.020
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Fe/ZSM-5 catalysts with various morphologies and sizes were prepared and the catalytic properties in NH3-SCR were also investigated. The different ZSM-5 morphologies and sizes indeed influence the dispersion of Fe species. The Fe/ZSM-5 catalyst, which was cauliflower-like morphology of ZSM-5 support aggregated by small nano crystal zeolite with crystallite size of about 50 nm, exhibited the best NH3-SCR activity (T->= 90% = 280-650 degrees C). This specific morphology and size of ZSM-5 support were considered to benefit the distribution of isolated Fe3+ species, which was proved to be the main active sites in SCR reaction. (C) 2016 Published by Elsevier B.V.
引用
收藏
页码：20 / 23
页数：4
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