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：

中国国家自然科学基金; 中国博士后科学基金;

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

页码：20 / 23

页数：4

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