Abstract
The catalytic properties of framework Fe3+ in MFI-type H-ferrisilicate for the selective reduction of nitric oxide with ammonia in the presence of oxygen have been investigated and compared with those of Fe-exchanged ZSM-5, iron oxide supported on silicalite and HZSM-5. H-ferrisilicate exhibited a high activity and selectivity for the reduction of nitric oxide into nitrogen. A side reaction, i.e. the oxidation of ammonia with oxygen into nitrogen, occurred only above 773 K. The activity and selectivity of Fe-exchanged ZSM-5 for the reduction of nitric oxide were comparable to those of H-ferrisilicate, while iron oxide supported on silicalite catalysed the oxidation of ammonia with oxygen into nitric oxide preferentially under the same reaction conditions. The catalytic activity of HZSM-5 for this reaction was much lower than that of H-ferrisilicate. Therefore, the framework Fe3+ ions in H-ferrisilicate are the active sites for the selective catalytic reduction of nitric oxide.
| Original language | English |
|---|---|
| Pages (from-to) | 3275-3279 |
| Number of pages | 5 |
| Journal | Journal of the Chemical Society, Faraday Transactions |
| Volume | 91 |
| Issue number | 18 |
| DOIs | |
| Publication status | Published - 1995 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Physical and Theoretical Chemistry
Cite this
Selective catalytic reduction of nitric oxide with ammonia on MFI-type ferrisilicate. / Uddin, Azhar; Komatsu, Takayuki; Yashima, Tatsuaki.
In: Journal of the Chemical Society, Faraday Transactions, Vol. 91, No. 18, 1995, p. 3275-3279.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Selective catalytic reduction of nitric oxide with ammonia on MFI-type ferrisilicate
AU - Uddin, Azhar
AU - Komatsu, Takayuki
AU - Yashima, Tatsuaki
PY - 1995
Y1 - 1995
N2 - The catalytic properties of framework Fe3+ in MFI-type H-ferrisilicate for the selective reduction of nitric oxide with ammonia in the presence of oxygen have been investigated and compared with those of Fe-exchanged ZSM-5, iron oxide supported on silicalite and HZSM-5. H-ferrisilicate exhibited a high activity and selectivity for the reduction of nitric oxide into nitrogen. A side reaction, i.e. the oxidation of ammonia with oxygen into nitrogen, occurred only above 773 K. The activity and selectivity of Fe-exchanged ZSM-5 for the reduction of nitric oxide were comparable to those of H-ferrisilicate, while iron oxide supported on silicalite catalysed the oxidation of ammonia with oxygen into nitric oxide preferentially under the same reaction conditions. The catalytic activity of HZSM-5 for this reaction was much lower than that of H-ferrisilicate. Therefore, the framework Fe3+ ions in H-ferrisilicate are the active sites for the selective catalytic reduction of nitric oxide.
AB - The catalytic properties of framework Fe3+ in MFI-type H-ferrisilicate for the selective reduction of nitric oxide with ammonia in the presence of oxygen have been investigated and compared with those of Fe-exchanged ZSM-5, iron oxide supported on silicalite and HZSM-5. H-ferrisilicate exhibited a high activity and selectivity for the reduction of nitric oxide into nitrogen. A side reaction, i.e. the oxidation of ammonia with oxygen into nitrogen, occurred only above 773 K. The activity and selectivity of Fe-exchanged ZSM-5 for the reduction of nitric oxide were comparable to those of H-ferrisilicate, while iron oxide supported on silicalite catalysed the oxidation of ammonia with oxygen into nitric oxide preferentially under the same reaction conditions. The catalytic activity of HZSM-5 for this reaction was much lower than that of H-ferrisilicate. Therefore, the framework Fe3+ ions in H-ferrisilicate are the active sites for the selective catalytic reduction of nitric oxide.
UR - http://www.scopus.com/inward/record.url?scp=0000360107&partnerID=8YFLogxK
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U2 - 10.1039/FT9959103275
DO - 10.1039/FT9959103275
M3 - Article
AN - SCOPUS:0000360107
VL - 91
SP - 3275
EP - 3279
JO - Physical Chemistry Chemical Physics
JF - Physical Chemistry Chemical Physics
SN - 1463-9076
IS - 18
ER -