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Study of the Surface Properties of the Hopcalite Modified with Noble Metals

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Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
In this work hopcalite-based catalysts, modified with noble metals, have been studied in oxidation of thiophene. It was shown that modified hopcalite displays higher activity for thiophene oxidation relative to commercial hopcalite. Moreover, differences in catalytic activity of hopcalite modified with different metals (Pt, Pd, Au) were observed. To explain these differences in catalyst activity both surface and bulk properties of catalyst were studied with Time of Flight Secondary Ion Mass Spectrometry (ToF-SIMS), Scanning Electron Microscopy with Energy Dispersive Spectrometer (SEM-EDS) and X-ray diffraction method (XRD). Au modified hopcalite shows the lowest activity for oxidation of thiophene. Obtained images of catalyst surfaces indicate that lowest Au modified catalysts activity is accompanied by pronounced non-homogeneous distribution of Au atoms on the catalyst surface.
Słowa kluczowe
Rocznik
Strony
2359--2366
Opis fizyczny
Bibliogr. 28 poz., rys.
Twórcy
autor
autor
  • Institute of General and Ecological Chemistry, Technical University of Lodz, Zeromskiego 116, 90-924 Łódź, Poland, fax: (042) 631 31, miszynk@p.lodz.pl
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Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BUJ6-0025-0033
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