Tetraammineplatinum(II) and Tetraamminepalladium(II) Chromates as Precursors of Metal Oxide Catalysts Full article
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Chemistry - A European Journal
ISSN: 0947-6539 , E-ISSN: 1521-3765 |
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| Output data | Year: 2020, Volume: 26, Number: 19, Pages: 4341-4349 Pages count : 9 DOI: 10.1002/chem.201905391 | ||||||
| Tags | chromium; homogeneous catalysis; palladium; platinum; thermal decomposition | ||||||
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| Affiliations |
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Funding (1)
| 1 | Federal Agency for Scientific Organizations | 0303-2016-0011 |
Abstract:
[M(NH3)4]A (M=Pt, Pd; A=CrO4, Cr2O7) and [Pt(NH3)4(NO2)(Cr2O7)]NO3 complex salts were synthesized and characterized by a number of physicochemical methods of analysis (IR, single-crystal and powder XRD, and simultaneous thermogravimetry and differential scanning calorimetry with evolved gas analysis mass spectrometry). Thermolysis of the salts obtained in a hydrogen atmosphere proceeds with the partial reduction of chromium to a metallic state and the formation of MxCr1−x (M=Pt, Pd) metal solid solution with a chromium content of up to 22 at % and chromium(III) oxide. The thermal decomposition of salts in an inert and oxidizing atmosphere passes through the formation stage of the MCrO2 phase with the delafossite structure followed by its subsequent decomposition into chromium(III) oxide and noble metal. Nanosized Pt−Cr2O3 and Pd−Cr2O3 composites obtained by the thermolysis of precursor salts in air at 500 °C and being held at this temperature for 1 h showed a high catalytic activity in the CO total oxidation (TOX) and preferential oxidation in the excess of hydrogen (PROX) processes compared with that of monometallic Pt and Pd powders. © 2020 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
Cite:
Filatov E.
, Lagunova V.
, Potemkin D.
, Kuratieva N.
, Zadesenets A.
, Plyusnin P.
, Gubanov A.
, Korenev S.
Tetraammineplatinum(II) and Tetraamminepalladium(II) Chromates as Precursors of Metal Oxide Catalysts
Chemistry - A European Journal. 2020. V.26. N19. P.4341-4349. DOI: 10.1002/chem.201905391 WOS Scopus РИНЦ AN PMID OpenAlex
Tetraammineplatinum(II) and Tetraamminepalladium(II) Chromates as Precursors of Metal Oxide Catalysts
Chemistry - A European Journal. 2020. V.26. N19. P.4341-4349. DOI: 10.1002/chem.201905391 WOS Scopus РИНЦ AN PMID OpenAlex
Dates:
| Submitted: | Nov 28, 2019 |
| Accepted: | Jan 28, 2020 |
| Published online: | Mar 9, 2020 |
| Published print: | Apr 1, 2020 |
Identifiers:
| Web of science: | WOS:000522553300025 |
| Scopus: | 2-s2.0-85081666765 |
| Elibrary: | 43253927 |
| Chemical Abstracts: | 2020:446738 |
| PMID: | 31990102 |
| OpenAlex: | W3003974905 |