Pt1−xNix Alloy Nanoparticles Embedded in Self-Grown Carbon Nanofibers: Synthesis, Properties and Catalytic Activity in HER | Sciact - CRIS-system of Boreskov Institute of Catalysis

Pt1−xNix Alloy Nanoparticles Embedded in Self-Grown Carbon Nanofibers: Synthesis, Properties and Catalytic Activity in HER Full article

Journal

Catalysts
ISSN: 2073-4344

Output data

Year: 2023, Volume: 13, Number: 3, Article number : 599, Pages count : 18 DOI: 10.3390/catal13030599

Tags

nickel; platinum; nanoalloys; X-ray diffraction analysis; carbon nanofibers; electrochemical hydrogen evolution reaction

Authors

Popov Anton A. ¹ , Afonnikova Sofya D. ² , Varygin Andrey D. ^1,3 , Bauman Yury I. ² , Trenikhin Mikhail V. ⁴ , Plyusnin Pavel E. ¹ , Shubin Yury V. ¹ , Vedyagin Aleksey A. ² , Mishakov Ilya V. ²

Affiliations

1	Nikolaev Institute of Inorganic Chemistry SB RAS, 3 Lavrentyev Ave., 630090 Novosibirsk, Russia
2	Boreskov Institute of Catalysis SB RAS, 5 Lavrentyev Ave., 630090 Novosibirsk, Russia
3	Department of Natural Science, Novosibirsk State University, 1 Pirogova Str., 630090 Novosibirsk, Russia
4	Department of Chemistry and Chemical Technology, Omsk State Technical University, 11 Mira Ave., 644050 Omsk, Russia

Funding (2)

1	Ministry of Science and Higher Education of the Russian Federation	0239-2021-0010
2	Russian Science Foundation	21-13-00414 (121041300222-6)

The development of new heterogeneous Pt-containing catalysts has retained its relevance over the past decades. The present paper describes the method to produce metal–carbon composites, Pt1−xNix/CNF, with an adjustable Pt/Ni ratio. The composites represent Pt1−xNix (x = 0.0–1.0) nanoparticles embedded within a structure of carbon nanofibers (CNF). The synthesis of the composites is based on a spontaneous disintegration of Pt1−xNix alloys in an ethylene-containing atmosphere with the formation of CNF. The initial Pt1−xNix alloys were prepared by thermolysis of multicomponent precursors. They possess a porous structure formed by fragments of 100–200 nm. As was shown by X-ray diffraction analysis, the crystal structure of the alloys containing 0–30 and 60–100 at.% Ni corresponds to a fcc lattice based on platinum (Fm-3m), while the Pt0.50Ni0.50 sample is an intermetallic compound with the tetragonal structure (P4/mmm). The impact of the Ni content in the Pt1−xNix samples on their activity in ethylene decomposition was studied as well. As was revealed, the efficiency of Pt1−xNix alloys in this process increases with the rise of Ni concentration. The composite samples were examined in an electrochemical hydrogen evolution reaction. The synthesized Pt1-xNix/CNF composites demonstrated superior activity if compared with the Pt/Vulcan commercial catalyst.

Popov A.A. , Afonnikova S.D. , Varygin A.D. , Bauman Y.I. , Trenikhin M.V. , Plyusnin P.E. , Shubin Y.V. , Vedyagin A.A. , Mishakov I.V.
Pt1−xNix Alloy Nanoparticles Embedded in Self-Grown Carbon Nanofibers: Synthesis, Properties and Catalytic Activity in HER
Catalysts. 2023. V.13. N3. 599 :1-18. DOI: 10.3390/catal13030599 WOS Scopus РИНЦ AN OpenAlex

Submitted:	Feb 9, 2023
Accepted:	Mar 14, 2023
Published print:	Mar 16, 2023
Published online:	Mar 16, 2023

Web of science:	WOS:000957311700001
Scopus:	2-s2.0-85151496358
Elibrary:	54908329
Chemical Abstracts:	2023:684441
OpenAlex:	W4327700192

DB	Citing
Web of science	13
Scopus	13
OpenAlex	10
Elibrary	9