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Isothermal oscillation during N2O decomposition over Fe- and Fe/Pt-ferrierite: Effect of NO addition

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F06%3A00040531" target="_blank" >RIV/61388955:_____/06:00040531 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Isothermal oscillation during N2O decomposition over Fe- and Fe/Pt-ferrierite: Effect of NO addition

  • Original language description

    Well-expressed oscillation of the N2O decomposition over Fe- and Fe/Pt-ferrierite catalysts has been observed, differing both in parameters and conditions from the oscillation behavior described previously for the same reaction over Fe-zeolites. The observed regular oscillation in the N2O conversion was accompanied by changes on N2 and O2 production in a dry N2O/He gas stream and was quenched reversibly after NO/NO2 addition. The results were observed in the temperature region 400-450oC over Fe/Pt-ferrierite, with periods of 0.5-3.5 min. For Fe-ferrierite, the temperature region for the oscillation behavior was sliághtly higher (i.e. 450-500oC). In triking contrast to Fe/Pt-ferrierite, the period of oscillation did not change with temperature over Fe-ferrierite. The patterns of the oscillation over both catalysts were complex and depended on the reaction conditions.

  • Czech name

    Isothermální oscilace při rozkladu N2O na katalyzátorech na bázi Fe- a Fe/Pt-ferrieritu

  • Czech description

    Byly pozorovány výrazné oscilace při rozkladu N2O na katalyzátorech na bázi Fe- a Fe/Pt-ferrieritu, lišící se v parametrech a v reakčních podmínkách od oscilačního chování popsaného dříve pro tuto reakci na Fe-zeolitech. Tyto pozorované pravidelné oscilace v konverzi N2O byly doprovázeny pravidelnými oscilacemi v rychlosti vzniku N2 a O2, a to v suché reakční směsi N2O/He a byly reversibilně zhášeny přídavkem NO/NO2 do směsi. Tyto jevy byly pozorovány v rozsahu teplot 400-450oC pro Fe/Pt-ferrierit, s periodami v rozsahu 0.5-3.5 min. Pro Fe-ferrierit byl teplotní rozsah oscilačního chování posunut k vyšším teplotám (t.j. 450-500oC). Na rozdíl od Fe/Pt-ferrieritu, se perioda oscilací na Fe-ferrieritu prakticky neměnila s teplotou. Tvar oscilací na obou katalyzátorech byl složitý a závisel na reakčních podmínkách.

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

Result continuities

  • Project

    <a href="/en/project/GP104%2F02%2FD124" target="_blank" >GP104/02/D124: The effect of gaseous additives and reactions in the gas phase on the mechanism of catalytic redox reactions</a><br>

  • Continuities

    Z - Vyzkumny zamer (s odkazem do CEZ)

Others

  • Publication year

    2006

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Journal of Catalysis

  • ISSN

    0021-9517

  • e-ISSN

  • Volume of the periodical

    242

  • Issue of the periodical within the volume

    2

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    8

  • Pages from-to

    270-277

  • UT code for WoS article

  • EID of the result in the Scopus database