Deep oxidation of methane on a Pt/Si3N4 catalyst

I. A. Kurzina, F. J. Cadete Santos Aires, J. C. Bertolini

    Результат исследований: Материалы для журналаСтатья

    2 Цитирования (Scopus)

    Выдержка

    We have studied platinum catalysts supported on silicon nitride Si 3N4 in the process of deep oxidation of methane. We have used transmission electron microscopy and X-ray photoelectron spectroscopy to study the surface properties of the Pt/Si3N4 samples before and after the catalytic reaction. We have established that the metallic platinum particles in freshly prepared systems are characterized by average sizes of 1.7-5.3 nm, while after the catalytic reaction we observe formation of Pt crystallites up to 30-70 nm in size. We hypothesize that the observed deactivation of platinum catalysts in deep oxidation of methane is connected with crystallization of the metallic particles and their entrainment with the reaction products during catalysis.

    Язык оригиналаАнглийский
    Страницы (с-по)241-245
    Число страниц5
    ЖурналTheoretical and Experimental Chemistry
    Том40
    Номер выпуска4
    DOI
    СостояниеОпубликовано - июл 2004

    Отпечаток

    Methane
    Platinum
    Oxidation
    Catalysts
    Crystallization
    Reaction products
    Crystallites
    Catalyst supports
    Catalysis
    Surface properties
    X ray photoelectron spectroscopy
    Transmission electron microscopy
    silicon nitride

    ASJC Scopus subject areas

    • Chemistry(all)

    Цитировать

    Kurzina, I. A., Cadete Santos Aires, F. J., & Bertolini, J. C. (2004). Deep oxidation of methane on a Pt/Si3N4 catalyst. Theoretical and Experimental Chemistry, 40(4), 241-245. https://doi.org/10.1023/B:THEC.0000041809.10564.dd

    Deep oxidation of methane on a Pt/Si3N4 catalyst. / Kurzina, I. A.; Cadete Santos Aires, F. J.; Bertolini, J. C.

    В: Theoretical and Experimental Chemistry, Том 40, № 4, 07.2004, стр. 241-245.

    Результат исследований: Материалы для журналаСтатья

    Kurzina, IA, Cadete Santos Aires, FJ & Bertolini, JC 2004, 'Deep oxidation of methane on a Pt/Si3N4 catalyst', Theoretical and Experimental Chemistry, том. 40, № 4, стр. 241-245. https://doi.org/10.1023/B:THEC.0000041809.10564.dd
    Kurzina, I. A. ; Cadete Santos Aires, F. J. ; Bertolini, J. C. / Deep oxidation of methane on a Pt/Si3N4 catalyst. В: Theoretical and Experimental Chemistry. 2004 ; Том 40, № 4. стр. 241-245.
    @article{45382ba7471a498880e6c8b7e19d44ca,
    title = "Deep oxidation of methane on a Pt/Si3N4 catalyst",
    abstract = "We have studied platinum catalysts supported on silicon nitride Si 3N4 in the process of deep oxidation of methane. We have used transmission electron microscopy and X-ray photoelectron spectroscopy to study the surface properties of the Pt/Si3N4 samples before and after the catalytic reaction. We have established that the metallic platinum particles in freshly prepared systems are characterized by average sizes of 1.7-5.3 nm, while after the catalytic reaction we observe formation of Pt crystallites up to 30-70 nm in size. We hypothesize that the observed deactivation of platinum catalysts in deep oxidation of methane is connected with crystallization of the metallic particles and their entrainment with the reaction products during catalysis.",
    keywords = "Deactivation, Methane oxidation, Platinum, Silicon nitride",
    author = "Kurzina, {I. A.} and {Cadete Santos Aires}, {F. J.} and Bertolini, {J. C.}",
    year = "2004",
    month = "7",
    doi = "10.1023/B:THEC.0000041809.10564.dd",
    language = "English",
    volume = "40",
    pages = "241--245",
    journal = "Theoretical and Experimental Chemistry",
    issn = "0040-5760",
    publisher = "Springer New York",
    number = "4",

    }

    TY - JOUR

    T1 - Deep oxidation of methane on a Pt/Si3N4 catalyst

    AU - Kurzina, I. A.

    AU - Cadete Santos Aires, F. J.

    AU - Bertolini, J. C.

    PY - 2004/7

    Y1 - 2004/7

    N2 - We have studied platinum catalysts supported on silicon nitride Si 3N4 in the process of deep oxidation of methane. We have used transmission electron microscopy and X-ray photoelectron spectroscopy to study the surface properties of the Pt/Si3N4 samples before and after the catalytic reaction. We have established that the metallic platinum particles in freshly prepared systems are characterized by average sizes of 1.7-5.3 nm, while after the catalytic reaction we observe formation of Pt crystallites up to 30-70 nm in size. We hypothesize that the observed deactivation of platinum catalysts in deep oxidation of methane is connected with crystallization of the metallic particles and their entrainment with the reaction products during catalysis.

    AB - We have studied platinum catalysts supported on silicon nitride Si 3N4 in the process of deep oxidation of methane. We have used transmission electron microscopy and X-ray photoelectron spectroscopy to study the surface properties of the Pt/Si3N4 samples before and after the catalytic reaction. We have established that the metallic platinum particles in freshly prepared systems are characterized by average sizes of 1.7-5.3 nm, while after the catalytic reaction we observe formation of Pt crystallites up to 30-70 nm in size. We hypothesize that the observed deactivation of platinum catalysts in deep oxidation of methane is connected with crystallization of the metallic particles and their entrainment with the reaction products during catalysis.

    KW - Deactivation

    KW - Methane oxidation

    KW - Platinum

    KW - Silicon nitride

    UR - http://www.scopus.com/inward/record.url?scp=23944447686&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=23944447686&partnerID=8YFLogxK

    U2 - 10.1023/B:THEC.0000041809.10564.dd

    DO - 10.1023/B:THEC.0000041809.10564.dd

    M3 - Article

    AN - SCOPUS:23944447686

    VL - 40

    SP - 241

    EP - 245

    JO - Theoretical and Experimental Chemistry

    JF - Theoretical and Experimental Chemistry

    SN - 0040-5760

    IS - 4

    ER -