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Tailoring of the structure of Fe-cationic species in Fe-ZSM-5 by distribution of Al atoms in the framework for N2O decomposition and NH3-SCR-NOx

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F14%3A00425817" target="_blank" >RIV/61388955:_____/14:00425817 - isvavai.cz</a>

  • Result on the web

    <a href="http://dx.doi.org/10.1016/j.jcat.2014.01.019" target="_blank" >http://dx.doi.org/10.1016/j.jcat.2014.01.019</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1016/j.jcat.2014.01.019" target="_blank" >10.1016/j.jcat.2014.01.019</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Tailoring of the structure of Fe-cationic species in Fe-ZSM-5 by distribution of Al atoms in the framework for N2O decomposition and NH3-SCR-NOx

  • Original language description

    The heterogeneity and redox behavior of Fe-cationic species in Fe-ZSM-5 catalysts for N2O decomposition and NH3-SCR-NOx were analyzed by Mössbauer and UV?Vis spectroscopy, TPR-H2, and reaction kinetic measurements. Iron was introduced into ZSM-5 zeolitesof similar Si/Al but with different populations of close (Al?Si?Si?Al sequences in one ring ? Al pairs) and far distant (single Al in different rings) Al atoms in the zeolite framework. It has been found that Al pairs in 6MRs of the framework greatly stabilize divalence of bare Fe(II) ions and [Fe(II)?O?Fe(II)]2+ complexes even in oxidizing atmosphere. These species were completely oxidized only with N2O and recognized as the most active sites in N2O decomposition. On the contrary, the prevailing concentration of single Al atoms resulted at comparable conditions in high population of Fe(III)-oxo species. Fe(III)-oxo species of low nuclearity with partially compensated positive charge by the zeolite framework facilitate the formation of

  • Czech name

  • Czech description

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

    Result was created during the realization of more than one project. More information in the Projects tab.

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2014

  • 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

    312

  • Issue of the periodical within the volume

    APR 2014

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    16

  • Pages from-to

    123-138

  • UT code for WoS article

    000335111300013

  • EID of the result in the Scopus database