| title: |
| Structural characterization of iron species in Fe-ZSM-5 catalysts and the elucidation
of their role in the mechanism of NOx reactions |
|
| contributing persons: |
| Roxana Pérez Vélez[VerfasserIn] |
 |
1065921160 |
| Ralf Ludwig
, Prof. Dr.[AkademischeR BetreuerIn] |
|
136437524 |
|
Universität Rostock, Institut für Chemie |
| Angelika Brückner
, Prof. Dr.[AkademischeR BetreuerIn] |
|
14344526X |
|
Universität Rostock, Leibniz-Institut für Katalyse |
|
| contributing corporate bodies: |
| Universität Rostock, Mathematisch-Naturwissenschaftliche Fakultät[Grad-verleihende Institution] |
|
2147083-2 |
|
| |
| 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] |
|
| document type: |
|
| institution: |
| Faculty of Mathematics and Natural Sciences |
|
| language: |
|
| subject class (DDC): |
| 540 Chemistry & allied sciences |
|
| |
publication /
production: |
Rostock
|
Rostock: Universität Rostock
|
|
2015
|
|
| |
| identifiers: |
|
| |
| access condition: |
|
| license/rights statement: |
all rights reserved
This work may only be used under the terms of the German Copyright Law (Urheberrechtsgesetz). |
|
|
| RosDok id: |
rosdok_disshab_0000001312 |
| created / modified: |
16.02.2015 / 08.08.2023
|
| metadata license: |
The metadata of this document was dedicated to the public domain
(CC0 1.0 Universal Public Domain Dedication). |
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