Nanostructured PtZn Intermetallic Compound: Controlled Formation from PtZn(CH3COO)4 Molecular Precursor and Tests of Catalytic Properties | Sciact - CRIS-system of Boreskov Institute of Catalysis

Nanostructured PtZn Intermetallic Compound: Controlled Formation from PtZn(CH3COO)4 Molecular Precursor and Tests of Catalytic Properties Full article

Journal

Intermetallics
ISSN: 0966-9795 , E-ISSN: 1879-0216

Output data

Year: 2021, Volume: 132, Article number : 107160, Pages count : 10 DOI: 10.1016/j.intermet.2021.107160

Tags

Alloys, Intermetallic compound, Materials characterization, Nanocomposites, Phase transformation, Synchrotron X-Ray diffraction

Authors

Smirnova Nadezhda S. ¹ , Khramov Evgeny V. ² , Stolarov Igor P. ¹ , Yakushev Ilya A. ¹ , Baeva Galina N. ³ , Bragina Galina O. ³ , Belova Ekaterina V. ⁴ , Ishchenko Arcady V. ⁵ , Popova Anna S. ⁶ , Zubavichus Yan V. ⁵ , Vargaftik Michael N. ¹ , Stakheev Aleksander Y. ³

Affiliations

1	Kurnakov Institute of General and Inorganic Chemistry RAS
2	National Research Center «Kurchatov Institute»
3	Zelinsky Institute of Organic Chemistry RAS
4	Lomonosov Moscow State University
5	Boreskov Institute of Catalysis SB RAS
6	Peoples’ Friendship University of Russia

Funding (4)

1	Russian Science Foundation	18-73-10206 (АААА-А18-118112090105-3)
2	Russian Science Foundation	19-13-00285
3	Russian Foundation for Basic Research	18-03-00228 (АААА-А18-118120690145-8)
4	Ministry of Science and Higher Education of the Russian Federation

Phase transformations of a newly synthesized heterobimetallic ZnPt(OOCMe)4(H2O)(MeCOOH)2 acetate in a chemically reductive atmosphere at mildly elevated temperatures are thoroughly studied in order to optimize conditions for the formation of nanostructured PtZn intermetallic compound. According to XAFS and XRD data, the first stage of reductive thermolysis is the reduction of the noble metal, while zinc remains in an oxygen environment. At the second stage the reduction of Zn and the formation of the bimetallic solid solution with the fcc lattice occur. It is shown that recrystallization of solid solution to ordered PtZn intermetallic compound with the tetragonal structure occurs in a narrow temperature range of 250–275 ◦C. Based on these results, the optimum reduction temperature for the preparation of supported bimetallic Pt–Zn/Al2O3 catalyst was determined to be 300 ◦C. Results of catalytic tests of the supported material are reported.

Smirnova N.S. , Khramov E.V. , Stolarov I.P. , Yakushev I.A. , Baeva G.N. , Bragina G.O. , Belova E.V. , Ishchenko A.V. , Popova A.S. , Zubavichus Y.V. , Vargaftik M.N. , Stakheev A.Y.
Nanostructured PtZn Intermetallic Compound: Controlled Formation from PtZn(CH3COO)4 Molecular Precursor and Tests of Catalytic Properties
Intermetallics. 2021. V.132. 107160 :1-10. DOI: 10.1016/j.intermet.2021.107160 WOS Scopus РИНЦ AN OpenAlex

Submitted:	Sep 4, 2020
Accepted:	Feb 16, 2021
Published online:	Mar 4, 2021
Published print:	May 1, 2021

Web of science:	WOS:000634631600003
Scopus:	2-s2.0-85101993661
Elibrary:	46755737
Chemical Abstracts:	2021:570921
OpenAlex:	W3134800229

DB	Citing
Scopus	5
Web of science	6
Elibrary	7
OpenAlex	7