Determination of the State of the Active Component of Nanocomposite Model Metal-Carbon Catalysts by XAFS Method | Sciact - CRIS-system of Boreskov Institute of Catalysis

Determination of the State of the Active Component of Nanocomposite Model Metal-Carbon Catalysts by XAFS Method Conference Abstracts

Conference

International Conference "Synchrotron and Free electron laser Radiation: generation and application"
13-17 Jul 2020 , Novosibirsk

Source

Synchrotron and Free electron laser Radiation: generation and application (SFR-2020), July 13 – 16, 2020 : Book of Abstracts
Compilation, ИЯФ СО РАН. Новосибирск.2020. 90 c. ISBN 9785904968076. РИНЦ

Output data

Year: 2020, Article number : 158, Pages count : 1

Authors

Kriventsov V.V. ¹ , Volodin A.M. ¹ , Novgorodov B.N. ¹ , Troitskii S.Y. ¹ , Zyuzin D.A. ¹ , Aksenov D.G. ¹ , Ivanov D.P. ¹ , Iost K.N. ² , Shlyapin D.A. ² , Nikolaev S.A. ³ , Chistyakov A.V. ⁴ , Tsodikov M.V. ⁴

Affiliations

1	Boreskov Institute of Catalysis SB RAS, Lavrentiev Ave. 5, Novosibirsk, 630090, Russia
2	Center of New Chemical Technologies BIC, Neftezavodskaya St., 54, Omsk, 644040, Russia
3	Faculty of Chemistry, Moscow State University, GSP-1, 1-3 Leninskiye Gory, Moscow 1, 119991, Russia
4	Topchiev Institute of Petrochemical Synthesis RAS, Leninsky Pr., 29, Moscow, 119991, GSP-1, Russia

Funding (3)

1	Russian Foundation for Basic Research	18-03-01251
2	Russian Foundation for Basic Research	19-05-50046 (АААА-А20-120011790071-5)
3	Ministry of Science and Higher Education of the Russian Federation	05.621.21.0022 (RFMEFI62119X0022) (АААА-А20-120072290017-9)

This report shows the results of XAFS (XANES/EXAFS) research on the state and local structure of metals in the active component of model low-percentage metal-carbon nanocomposite catalysts containing nanoscale forms of Pt, Pd, Ru. It is a well-known fact that low-percentage catalytic nanosystems containing platinoids deposited on various carbon carriers are of great interest to researchers because of their practical significance; possibilities for varying catalytic properties and applications for a wide range of processes (hydrogenation, conversion of industrial substrates, debenzylation of amines, etc.).), low cost of final products, ease of disposal and recovery of expensive components from spent catalysts. Model samples were prepared from precursors of different nature, with varying methods of synthesis and formation of the applied component, recovery and activation modes. XAFS (XANES/EXAFS) spectra (Pt-L3, Pd-K, Ru- K) of studied samples were recorded at SSTRC, Novosibirsk. The lengths of interatomic bonds and the corresponding coordination numbers are established. Additionally XPS, TEM, XRD, XRF methods were applied to study chemical and phase compositions, morphology of the samples. Data obtained by different methods do not contradict each other. Possible variants of structural models are considered in detail. Correlations were found between the structure of the active component and the catalytic properties of the studied samples. The perspective of the proposed approach for the study of nanocomposite model metal-carbon catalysts containing platinoids is shown.

Kriventsov V.V. , Volodin A.M. , Novgorodov B.N. , Troitskii S.Y. , Zyuzin D.A. , Aksenov D.G. , Ivanov D.P. , Iost K.N. , Shlyapin D.A. , Nikolaev S.A. , Chistyakov A.V. , Tsodikov M.V.
Determination of the State of the Active Component of Nanocomposite Model Metal-Carbon Catalysts by XAFS Method
In compilation Synchrotron and Free electron laser Radiation: generation and application (SFR-2020), July 13 – 16, 2020 : Book of Abstracts. – ИЯФ СО РАН., 2020. – C.84-85. – ISBN 9785904968076. РИНЦ

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