High-silica nanoflower hierarchical Fe-MFI with excellent catalytic performance for N2O decomposition

被引：10
作者：
Shen, Qun [1 ]
Zhang, Lingyun [1 ]
Wu, Minfang [1 ]
Wang, Hui [1 ]
Sun, Nannan [1 ]
Wei, Wei [1 ,2 ]
Sun, Yuhan [1 ,2 ]
机构：
[1] Chinese Acad Sci, Key Lab Low Carbon Convers Sci & Engn, Shanghai 201210, Peoples R China
[2] ShanghaiTech Univ, 100 Haike Rood, Shanghai 201210, Peoples R China
来源：
MATERIALS RESEARCH BULLETIN | 2017年 / 87卷
关键词：
Chemical synthesis; Catalytic properties; Diffusion; Microporous materials; Solvothermal; FEMFI ZEOLITES; IRON; REDUCTION; FE-ZSM-5; ZSM-5; NOX; REACTIVITY; CONVERSION; FRAMEWORK; OXYGEN;
D O I：
10.1016/j.materresbull.2016.11.001
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Hierarchical ZSM-5 zeolites with nanoflower structure were synthesized by a facile hydrothermal method. From the characterization results, it is proved that the contribution of mesopores to the BET surface area and total pore volume is significant. Owing to the diffusion intensification, the iron loading is greatly increased and the catalytic performance is much better than that of commercial ones, especially for the synthesized samples with high Si/Al ratio. In this work, for Fe/ZSM-5-C sample, it attains 20% N2O conversion at 510 degrees C, which is lower by >70 degrees C compared to the commercial one with close Si/Al ratio. Therefore, Fe-modified mesoporous ZSM-5 zeolites with nanoflower structure show potential in the industrial application. (C) 2016 Elsevier Ltd. All rights reserved.
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页码：1 / 5
页数：5
相关论文
共 28 条
[1]   Structure and reactivity of framework and extraframework iron in Fe-silicalite as investigated by spectroscopic and physicochemical methods [J].
Bordiga, S ;
Buzzoni, R ;
Geobaldo, F ;
Lamberti, C ;
Giamello, E ;
Zecchina, A ;
Leofanti, G ;
Petrini, G ;
Tozzola, G ;
Vlaic, G .
JOURNAL OF CATALYSIS, 1996, 158 (02) :486-501
[2]   Hierarchically structured zeolites: synthesis, mass transport properties and applications [J].
Chen, Li-Hua ;
Li, Xiao-Yun ;
Rooke, Joanna Claire ;
Zhang, Ya-Hong ;
Yang, Xiao-Yu ;
Tang, Yi ;
Xiao, Feng-Shou ;
Su, Bao-Lian .
JOURNAL OF MATERIALS CHEMISTRY, 2012, 22 (34) :17381-17403
[3]   Active sites in Fe/MFI catalysts for NOx reduction and oscillating N2O decomposition [J].
El-Malki, EM ;
van Santen, RA ;
Sachtler, WMH .
JOURNAL OF CATALYSIS, 2000, 196 (02) :212-223
[4]   Size controlled ZSM-5 on the structure and performance of Fe catalyst in the selective catalytic reduction of NOx with NH3 [J].
Feng, Baijun ;
Wang, Zhong ;
Sun, Yuanyuan ;
Zhang, Chuanhui ;
Tang, Sifu ;
Li, Xuebing ;
Huang, Xiang .
CATALYSIS COMMUNICATIONS, 2016, 80 :20-23
[5]   Characterization of Fe/ZSM-5 DeNOx catalysts prepared by different methods: Relationships between active Fe sites and NH3-SCR performance [J].
Iwasaki, Masaoki ;
Yamazaki, Kiyoshi ;
Banno, Koji ;
Shinjoh, Hirofumi .
JOURNAL OF CATALYSIS, 2008, 260 (02) :205-216
[6]   Effect of FeH-zeolite structure and Al-Lewis sites on N2O decomposition and NO/NO2-assisted reaction [J].
Kaucky, D ;
Sobalík, Z ;
Schwarze, M ;
Vondrová, A ;
Wichterlová, B .
JOURNAL OF CATALYSIS, 2006, 238 (02) :293-300
[7]   Mechanism and kinetics of direct N2O decomposition over Fe-MFI zeolites with different iron speciation from temporal analysis of products [J].
Kondratenko, Evgenii V. ;
Perez-Ramirez, Javier .
JOURNAL OF PHYSICAL CHEMISTRY B, 2006, 110 (45) :22586-22595
[8]   Fe-USY zeolite catalyst for effective decomposition of nitrous oxide [J].
Li, Lan Dong ;
Shen, Qun ;
Yu, Jun Jie ;
Hao, Zheng Ping ;
Xu, Zhi Ping ;
Lu, G. Q. Max .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2007, 41 (22) :7901-7906
[9]   Iron-exchanged FAU zeolites:: Preparation, characterization and catalytic properties for N2O decomposition [J].
Li, Landong ;
Shen, Qun ;
Li, Jinjun ;
Hao, Zhengping ;
Xu, Zhi Ping ;
Lu, G. Q. Max .
APPLIED CATALYSIS A-GENERAL, 2008, 344 (1-2) :131-141
[10]   Improved performance of hierarchical Fe-ZSM-5 in the direct oxidation of benzene to phenol by N2O [J].
Li, Lulu ;
Meng, Qinglun ;
Wen, Junjun ;
Wang, Jingui ;
Tu, Gaomei ;
Xu, Chunhui ;
Zhang, Fumin ;
Zhong, Yijun ;
Zhu, Weidong ;
Xiao, Qiang .
MICROPOROUS AND MESOPOROUS MATERIALS, 2016, 227 :252-257
123