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New Possibility for Investigation of Supported Pt/MgAlOx Catalysts by XPS with Use of Monochromatic AgLα Irradiation Conference attendances

Language Английский
Participant type Стендовый
Conference EuropaCat-XII: 12th European Congress on Catalysis “Catalysis: Balancing the use of fossil and renewable resources”
30 Aug - 4 Sep 2015 , Казань
Tags platinum supported Pt/MgAlOx catalysts, XPS, monochromatic AgLa
Authors Nizovskii Aleksandr Ivanovich 1,2 , Kalinkin Aleksandr Vasilʹevich 1 , Smirnov Mikhail Yurʹevich 1 , Belʹskaya Olʹga Borisovna 3,2 , Bukhtiyarov Valerii Ivanovich 1
Affiliations
1 Boreskov Institute of Catalysis SB RAS
2 Omsk State Technical University
3 Institute of Hydrocarbons Processing SB RAS

Abstract: The capabilities of XPS to study heterogeneous catalysts are severely restricted for supported Pt/MgAlOx catalysts. When XPS spectra from these catalysts are taken with the standard AlKα or MgKα irradiations, the Pt4f doublet line is masked by a strong Al2p line as well as by the additive lines-satellites from Mg2s line. A possible solution of this problem could be the use of AgLα irradiation with the photon energy of 2984.3 eV for excitation of Pt3d5/2 and Al1s lines. AgLa irradiation is an useful tool for investigation of supported Pt-alumina catalysts. The values of Pt3d5/2 binding energy can be used for determination of the oxidation state of platinum in supported Pt/MgAlOx catalysts and other systems containing both platinum and aluminum.
Cite: Nizovskii A.I. , Kalinkin A.V. , Smirnov M.Y. , Belʹskaya O.B. , Bukhtiyarov V.I.
New Possibility for Investigation of Supported Pt/MgAlOx Catalysts by XPS with Use of Monochromatic AgLα Irradiation
EuropaCat-XII: 12th European Congress on Catalysis “Catalysis: Balancing the use of fossil and renewable resources” 30 Aug - 4 Sep 2015