Control of the NO–NH3 SCR Behavior of Cu-ZSM-5 by Variation of the Electronic State of Copper Full article
| Conference |
Eleventh International Congress on Catalysis and Automotive Pollution Control 29-31 Oct 2018 , Brussels |
||
|---|---|---|---|
| Journal |
Topics in Catalysis
ISSN: 1022-5528 , E-ISSN: 1572-9028 |
||
| Output data | Year: 2019, Volume: 62, Number: 1-4, Pages: 179-191 SI Pages count : 13 DOI: 10.1007/s11244-018-1101-4 | ||
| Tags | Cu-ZSM-5; Selective catalytic reduction of NOx; NO–NH3 SCR; Ammonia; TPD | ||
| Authors |
|
||
| Affiliations |
|
Funding (1)
| 1 | Federal Agency for Scientific Organizations | 0303-2016-0014 |
Abstract:
The effect of NH4OH/Cu2+ in a copper-acetate solution on the properties of ion-exchanged Cu-ZSM-5 catalysts in the selective catalytic reduction of NO by NH3 (NO–NH3 SCR) has been studied. The temperature programmed desorption of ammonia (NH3-TPR) on Cu-ZSM-5 and the ammonia adsorption–desorption dynamics at 75–300 °C were studied to identify and quantify the nature of acid sites and ammonia desorption heat of Cu-ZSM-5. The Cu-ZSM-5 catalysts containing Cu-structures with extra-lattice oxygen were active in the low-temperature SCR, whereas those with isolated Cu2+ ions were active in the high-temperature SCR. It was shown that Cu-structures with extra-lattice oxygen were generated during the ion exchange of H-ZSM-5 with a water-ammonia solution of copper-acetate where the NH4OH/Cu2+ ratio was in the range of 6–15. Isolated Cu2+ ions were produced in the ion-exchange mode with the ammonia-free solution.
Cite:
Yashnik S.A.
, Ismagilov Z.R.
Control of the NO–NH3 SCR Behavior of Cu-ZSM-5 by Variation of the Electronic State of Copper
Topics in Catalysis. 2019. V.62. N1-4. P.179-191 SI. DOI: 10.1007/s11244-018-1101-4 WOS Scopus РИНЦ ANCAN OpenAlex
Control of the NO–NH3 SCR Behavior of Cu-ZSM-5 by Variation of the Electronic State of Copper
Topics in Catalysis. 2019. V.62. N1-4. P.179-191 SI. DOI: 10.1007/s11244-018-1101-4 WOS Scopus РИНЦ ANCAN OpenAlex
Dates:
| Published online: | Dec 13, 2018 |
| Published print: | Feb 1, 2019 |
Identifiers:
| Web of science: | WOS:000461821000023 |
| Scopus: | 2-s2.0-85058493328 |
| Elibrary: | 38589538 |
| Chemical Abstracts: | 2018:2568299 |
| Chemical Abstracts (print): | 170:495985 |
| OpenAlex: | W2903662334 |