Cu-ZSM-5 zeolite highly active in reduction of NO with decane under water vapor presence - Comparison of decane, propane and propene by in situ FTIR
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F05%3A00031110" target="_blank" >RIV/61388955:_____/05:00031110 - isvavai.cz</a>
Alternative codes found
RIV/00216275:25310/05:00003293
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Cu-ZSM-5 zeolite highly active in reduction of NO with decane under water vapor presence - Comparison of decane, propane and propene by in situ FTIR
Original language description
Selective catalytic reduction of NOx (SCR-NOx) with decane, and for comparison with propane and propene over Cu-ZSM-5 zeolite (Cu/ Al 0,49, Si/Al 13.2) was investigated under presence and absence of water vapor. Decane behaves in SCR-NOx like propene, i.e. the Cu-zeolite activity increased under increasing concentration of water vapor, as demonstrated by a shift of the NOx-N-2 conversion to lower temperatures, in contrast to propane, where the NOx-N-2 Conversion is highly suppressed. In situ FTIR spectra of sorbed intermediates revealed similar spectral features for C10H22- and C3H6-SCR-NOx, where -CHx, R-NO2, -NO3-, Cu+-CO, -CN, -NCO and -NH species were found. On contrary, with propane -CHx, R-NO2, NO3-, Cu+-CO represented prevailing species. A comparison of the in situ FTIR spectra (T-O-T and intermediate vibrations) recorded at pulses of propene and propane, moreover, under presence and absence of water vapor in the reaction mixture...
Czech name
Cu-ZSM-5 zeolit vysoce aktivní v redukci NO dekanem za přítomnosti vody
Czech description
Selektivní katalytická redukce NOx (SCR-NOx) dekanem, a pro srovnání propanem a propenem, na Cu-ZSM-5 zeolitu (Cu/Al 0,49, Si/Al 13,2) byla studována za přítomnosti i nepřítomnosti vodní páry. Dekan se chová v SCR-NOx jako propen, tzn. Aktivita Cu-zeolitu roste s rostoucí koncentrací vodní páry, jak bylo ukázáno posunem NOx-N2 konverze k nižším teplotám, na rozdíl od propanu, u kterého je konverze NOx-N2 silně potlačena. In situ FTIR spektra sorbovaných intermediátů ukázaly obdobná spektra pro C10H22- aC3H6-NOx, u kterých byly nalezeny ?CHx, R-NO2, -NO3-, Cu+-CO, -CN, -NCO a ?NH specie. Naproti tomu s propanem převládaly povrchové struktury ?CHx, R-NO2, -NO3- a Cu+-CO. Porovnání in situ FTIR spekter (vibrace T-O-T a intermediátů) zaznamenané v pulsechpropenu a propanu za přítomnosti nebo absence vodní páry v reakční směsi kromě toho ukázaly, že redoxní cyklus Cu2+-Cu+ pracuje v reakci C3H6-SCR-NOx jak za přítomnosti tak i absence vodní páry, ...
Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CF - Physical chemistry and theoretical chemistry
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GD203%2F03%2FH140" target="_blank" >GD203/03/H140: Organised materials for highly selective catalytic and separation processes</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2005
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Applied Catalysis. B - Environmental
ISSN
0926-3373
e-ISSN
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Volume of the periodical
60
Issue of the periodical within the volume
3-4
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
10
Pages from-to
201-210
UT code for WoS article
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EID of the result in the Scopus database
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