Effect of preparation procedure on the catalytic properties of Fe-ZSM-5 as SCR catalyst
Artikel i vetenskaplig tidskrift, 2013

Fe-ZSM-5 catalysts, prepared by different methods, have been characterized by BET, ICP-AES, XRD, XPS, NH3-TPD and NO-TPD and evaluated for NOx reduction according to standard NH3-SCR, NH3 oxidation and NO oxidation, in absence and presence of water. The presence of water has a significant influence on both the SCR and oxidation reactions. The most active catalyst for NH3-SCR is prepared by ion exchange using FeCl2 as iron precursor. The XPS results indicate that Fe2+ ions are the main active sites for the SCR reactions, while Fe3+ ions are the primarily active sites for oxidation of ammonia.

Ammonia oxidation

Selective catalytic reduction

Exhaust after-treatment

Environmental catalysis

Ion-exchange

Incipient wetness impregnation

Författare

Alexander Shishkin

Chalmers, Kemi- och bioteknik, Teknisk ytkemi

Kompetenscentrum katalys (KCK)

Per-Anders Carlsson

Chalmers, Kemi- och bioteknik, Teknisk ytkemi

Kompetenscentrum katalys (KCK)

Hanna Härelind

Chalmers, Kemi- och bioteknik, Teknisk ytkemi

Kompetenscentrum katalys (KCK)

Magnus Skoglundh

Kompetenscentrum katalys (KCK)

Chalmers, Kemi- och bioteknik, Teknisk ytkemi

Topics in Catalysis

1022-5528 (ISSN) 1572-9028 (eISSN)

Vol. 56 9-10 567-575

Drivkrafter

Hållbar utveckling

Styrkeområden

Nanovetenskap och nanoteknik

Transport

Energi

Materialvetenskap

Ämneskategorier

Fysikalisk kemi

Kemiska processer

DOI

10.1007/s11244-013-0016-3