Fe-ZSM-5 for selective catalytic reduction of NO with NH3: A comparative study of different preparation techniques

R. Q. Long; R. T. Yang

doi:10.1023/A:1016670217673

Fe-ZSM-5 for selective catalytic reduction of NO with NH₃: A comparative study of different preparation techniques

R. Q. Long
, R. T. Yang

Department of Chemical and Biological Engineering

University of Michigan, Ann Arbor

Research output: Contribution to journal › Article › peer-review

127 Scopus citations

Abstract

Fe-ZSM-5 are prepared by using four different techniques: conventional aqueous ion-exchange (CA), improved aqueous ion-exchange (IA), solid-state ion-exchange (SS) and chemical vapor ion-exchange (CV). All of the catalysts show very high activities for selective catalytic reduction (SCR) of NO with ammonia. However, the activities are different and follow the sequence of Fe-ZSM-5 (IA) > Fe-ZSM-5 (CA), Fe-ZSM-5 (SS) > Fe-ZSM-5 (CV). ESR results indicate that Fe³⁺ ions with tetrahedral coordination are the active sites for the SCR reaction.

Original language	English
Pages (from-to)	201-205
Number of pages	5
Journal	Catalysis Letters
Volume	74
Issue number	3-4
DOIs	https://doi.org/10.1023/A:1016670217673
State	Published - Jul 2001

Keywords

Catalyst preparation
Fe-exchanged ZSM-5
Ion-exchange
SCR of NO with ammonia
Selective catalytic reduction

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title = "Fe-ZSM-5 for selective catalytic reduction of NO with NH3: A comparative study of different preparation techniques",

abstract = "Fe-ZSM-5 are prepared by using four different techniques: conventional aqueous ion-exchange (CA), improved aqueous ion-exchange (IA), solid-state ion-exchange (SS) and chemical vapor ion-exchange (CV). All of the catalysts show very high activities for selective catalytic reduction (SCR) of NO with ammonia. However, the activities are different and follow the sequence of Fe-ZSM-5 (IA) > Fe-ZSM-5 (CA), Fe-ZSM-5 (SS) > Fe-ZSM-5 (CV). ESR results indicate that Fe3+ ions with tetrahedral coordination are the active sites for the SCR reaction.",

keywords = "Catalyst preparation, Fe-exchanged ZSM-5, Ion-exchange, SCR of NO with ammonia, Selective catalytic reduction",

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year = "2001",

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T2 - A comparative study of different preparation techniques

AU - Long, R. Q.

AU - Yang, R. T.

PY - 2001/7

Y1 - 2001/7

N2 - Fe-ZSM-5 are prepared by using four different techniques: conventional aqueous ion-exchange (CA), improved aqueous ion-exchange (IA), solid-state ion-exchange (SS) and chemical vapor ion-exchange (CV). All of the catalysts show very high activities for selective catalytic reduction (SCR) of NO with ammonia. However, the activities are different and follow the sequence of Fe-ZSM-5 (IA) > Fe-ZSM-5 (CA), Fe-ZSM-5 (SS) > Fe-ZSM-5 (CV). ESR results indicate that Fe3+ ions with tetrahedral coordination are the active sites for the SCR reaction.

AB - Fe-ZSM-5 are prepared by using four different techniques: conventional aqueous ion-exchange (CA), improved aqueous ion-exchange (IA), solid-state ion-exchange (SS) and chemical vapor ion-exchange (CV). All of the catalysts show very high activities for selective catalytic reduction (SCR) of NO with ammonia. However, the activities are different and follow the sequence of Fe-ZSM-5 (IA) > Fe-ZSM-5 (CA), Fe-ZSM-5 (SS) > Fe-ZSM-5 (CV). ESR results indicate that Fe3+ ions with tetrahedral coordination are the active sites for the SCR reaction.

KW - Catalyst preparation

KW - Fe-exchanged ZSM-5

KW - Ion-exchange

KW - SCR of NO with ammonia

KW - Selective catalytic reduction

UR - https://www.scopus.com/pages/publications/0035412653

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DO - 10.1023/A:1016670217673

M3 - Article

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SN - 1011-372X

VL - 74

SP - 201

EP - 205

JO - Catalysis Letters

JF - Catalysis Letters

IS - 3-4

ER -

Fe-ZSM-5 for selective catalytic reduction of NO with NH₃: A comparative study of different preparation techniques

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Keywords

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