title: |
Structural characterization of iron species in Fe-ZSM-5 catalysts and the elucidation
of their role in the mechanism of NOx reactions |
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contributing persons: |
Roxana Pérez Vélez[VerfasserIn] |
|
1065921160 |
Ralf Ludwig
, Prof. Dr.[AkademischeR BetreuerIn] |
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136437524 |
|
Universität Rostock, Institut für Chemie |
Angelika Brückner
, Prof. Dr.[AkademischeR BetreuerIn] |
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14344526X |
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Universität Rostock, Leibniz-Institut für Katalyse |
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contributing corporate bodies: |
Universität Rostock, Mathematisch-Naturwissenschaftliche Fakultät[Grad-verleihende Institution] |
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2147083-2 |
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abstract: |
The selective catalytic reduction of NOx by ammonia (NH3-SCR) has widely applied in
the abatement of NOx. Fe-ZSM-5 is a potential catalyst, showing high performance in
standard SCR (mainly NO) at > 400°C and in fast SCR (NO/NO2 = 1) at ≥ 250°C. The identification
of the active species in Fe-ZSM-5 catalysts and reaction mechanism for SCR reactions
were investigated by in situ and operando EPR, UV-Vis and FTIR spectroscopy. The spectroscopic
studies demonstrate the role of NO2 to reoxidize isolated Fe(II) to the active Fe(III)
at β and γ sites, and attribute them the higher activity in fast SCR.
[English] |
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document type: |
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institution: |
Faculty of Mathematics and Natural Sciences |
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language: |
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subject class (DDC): |
540 Chemistry & allied sciences |
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publication / production: |
Rostock
Rostock: Universität Rostock
|
2015
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identifiers: |
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access condition: |
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license/rights statement: |
all rights reserved This work may only be used under the terms of the German Copyright Law (Urheberrechtsgesetz). |
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RosDok id: |
rosdok_disshab_0000001312 |
created / modified: |
16.02.2015 / 08.08.2023
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metadata license: |
The metadata of this document was dedicated to the public domain (CC0 1.0 Universal Public Domain Dedication). |