Catalytic Properties and Electronic Structure of Copper Ions in Cu-ZSM-5 Full article
Conference |
Application of Microporous and Mesoporous Materials as Catalytic Hosts for Fe, Cu and Co : 1st International Workshop 01-04 Mar 2005 , Scheveningen |
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Journal |
Catalysis Today
ISSN: 0920-5861 , E-ISSN: 1873-4308 |
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Output data | Year: 2005, Volume: 110, Number: 3-4, Pages: 310-322 Pages count : 13 DOI: 10.1016/j.cattod.2005.09.029 | ||
Tags | Copper electron state, Copper-exchanged zeolite, Cu-ZSM-5, ESR, UV-vis DRS | ||
Authors |
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Affiliations |
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Funding (2)
1 | Президиум РАН | 7.23 |
2 | Dutch Research Council | 047.015.012 |
Abstract:
The effect of ion exchange conditions, such as Si/Al ratio, precursor copper salt, pH and concentration of the solution, on the catalytic activity in SCR of NO by propane and on the electronic state of copper ions in Cu-ZSM-5 has been studied. The NO conversion in NO SCR by C3H8 has been found to reach a maximum value at Cu/Al ratio about 0.37–0.4 and remain constant at higher Cu/Al. ESR and UV–vis DR spectroscopy have been used to elucidate stabilization conditions of copper ions in Cu-ZSM-5 zeolites as isolated Cu2+ ions, chain copper oxide structures and square-plain oxide clusters. The ability of copper ions for reduction and reoxidation in the chain structures may be responsible for the catalytic activity of Cu-ZSM-5. These transformations of copper ions are accompanied by the observation of
intervalence transitions Cu2+–Cu+ and CTLM of the chain structures in the UV–vis spectra.
Cite:
Yashnik S.A.
, Ismagilov Z.R.
, Anufrienko V.F.
Catalytic Properties and Electronic Structure of Copper Ions in Cu-ZSM-5
Catalysis Today. 2005. V.110. N3-4. P.310-322. DOI: 10.1016/j.cattod.2005.09.029 WOS Scopus РИНЦ
Catalytic Properties and Electronic Structure of Copper Ions in Cu-ZSM-5
Catalysis Today. 2005. V.110. N3-4. P.310-322. DOI: 10.1016/j.cattod.2005.09.029 WOS Scopus РИНЦ
Dates:
Published online: | Oct 21, 2005 |
Published print: | Dec 30, 2005 |
Identifiers:
Web of science | WOS:000233953700015 |
Scopus | 2-s2.0-27844606881 |
Elibrary | 13491145 |
Chemical Abstracts | 2005:1249971 |
Chemical Abstracts (print) | 144:155087 |
OpenAlex | W2094862989 |