Production of Carbon Nanofibers from Ethylene over Porous Co-Pd Alloys | Sciact - CRIS-system of Boreskov Institute of Catalysis

Production of Carbon Nanofibers from Ethylene over Porous Co-Pd Alloys Full article

Journal

Diamond and Related Materials
ISSN: 0925-9635 , E-ISSN: 1879-0062

Output data

Year: 2025, Volume: 160, Article number : 113038, Pages count : 11 DOI: 10.1016/j.diamond.2025.113038

Tags

Cobalt; Palladium; Ethylene; Catalytic pyrolysis; Carbon nanofibers

Authors

Varygin Andrey D. ¹ , Afonnikova Sofya D. ² , Popov Anton A. ¹ , Sharafutdinov Marat R. ^3,4 , Mishakov Ilya V. ² , Shubin Yury V. ¹ , Vedyagin Aleksey A. ²

Affiliations

1	Nikolaev Institute of Inorganic Chemistry of SB RAS, 3 Lavrentyev Ave, 630090, Novosibirsk, Russia
2	Boreskov Institute of Catalysis, 5 Lavrentyev Ave, 630090, Novosibirsk, Russia
3	Institute of Solid-State Chemistry and Mechanochemistry of SB RAS, 18 Kutateladze St., 630128, Novosibirsk, Russia
4	Synchrotron Radiation Facility “SKIF”, Boreskov Institute of Catalysis of SB RAS,, 1 Nikolskiy Ave., 630559, Koltsovo, Russia

Funding (2)

1	Ministry of Science and Higher Education of the Russian Federation	FWUR-2024-0034
2	Ministry of Science and Higher Education of the Russian Federation	FWUZ-2025-0002 (125021302133-1)(075-03-2025-190)

Carbon nanofibers were produced via catalytic decomposition of ethylene over porous Cosingle bondPd alloys prepared by reductive thermolysis of bicomponent precursors. The Pd content in the alloy samples was varied from 0 to 10 at%. X-ray diffraction analysis of the prepared alloys showed that their crystal structure corresponds to fcc Co1-xPdx solid solutions based on a cubic cobalt lattice (Fm-3m) with an admixture of the hcp Co1-yPdy phase based on a hexagonal cobalt lattice (P63/mmc). The effect of the Pd content (x) in Co1-xPdx alloys on their performance in the catalytic pyrolysis of ethylene with the formation of carbon nanofibers was studied. As a result of ethylene interaction with Cosingle bondPd alloys, the latter ones undergo rapid disintegration with the formation of active alloy particles functioning as sites for the growth of carbon nanofibers. Note that pure cobalt exhibited a low carbon yield of 10.5 g/gcat, while pure palladium is almost inactive. The addition of 2–10 at% Pd to cobalt increases its activity by more than 15 times. The maximum carbon yield of 196 g/gcat after 1 h of the reaction at 550 °C was reached over the Cosingle bondPd (4) sample.

Varygin A.D. , Afonnikova S.D. , Popov A.A. , Sharafutdinov M.R. , Mishakov I.V. , Shubin Y.V. , Vedyagin A.A.
Production of Carbon Nanofibers from Ethylene over Porous Co-Pd Alloys
Diamond and Related Materials. 2025. V.160. 113038 :1-11. DOI: 10.1016/j.diamond.2025.113038 OpenAlex

Submitted:	Jul 1, 2025
Accepted:	Oct 29, 2025
Published online:	Nov 1, 2025
Published print:	Dec 1, 2025

OpenAlex:

W4415760671

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