Reductive Activation of Mono‐ and Bimetallic Fe and Co Catalysts for CO Hydrogenation: Unusual Formation of Fe 0.88 Co 0.12 Phase and Synergistic Effect in the Catalysis

Reductive Activation of Mono‐ and Bimetallic Fe and Co Catalysts for CO Hydrogenation: Unusual Formation of Fe 0.88 Co 0.12 Phase and Synergistic Effect in the Catalysis Full article

Journal

ChemCatChem
ISSN: 1867-3899 , E-ISSN: 1867-3880

Output data

Year: 2026, Volume: 18, Number: 3, Article number : e01415, Pages count : DOI: 10.1002/cctc.202501415

Authors

Chernavskii Petr A. ^1,2 , Pankina Galina V. ¹ , Maslakov Konstantin I. ¹ , Kazantsev Ruslan V. ² , Novakova Alla A. ³ , Panfilov Sergey I. ³ , Petrovskaya Galina A. ³ , Lunin Boris S. ¹ , Eliseev Oleg L. ²

Affiliations

1	Department of Chemistry Lomonosov Moscow State University Moscow Russia
2	Zelinsky Institute of Organic Chemistry Moscow Russia
3	Faculty of Physics Lomonosov Moscow State University Moscow Russia

This study investigates the reductive activation of silica-supported mono- and bimetallic iron and cobalt catalysts for CO hydrogenation. The focus is on the formation of active phases and their catalytic performance in Fischer–Tropsch synthesis (FTS). Using a combination of x-ray diffraction, Mössbauer spectroscopy, x-ray photoelectron spectroscopy, and temperature-programmed reduction (TPR) with magnetometry, we identified an unusual Fe0.88Co0.12 solid solution phase during reductive activation in a CO/H2 flow. The presence of cobalt was found to inhibit iron carbide formation, while iron impedes the complete reduction of cobalt oxides. Catalytic testing was performed under typical FTS conditions (20 bar, 240°C, CO:H2 = 1:1). The bimetallic FeCo/SiO2 catalyst exhibited superior activity and hydrocarbons productivity compared to its monometallic counterparts. These findings highlight the potential of Fe─Co bimetallic systems for optimizing FTS performance, and provide valuable insights into the role of alloy formation in the catalytic performance.

Chernavskii P.A. , Pankina G.V. , Maslakov K.I. , Kazantsev R.V. , Novakova A.A. , Panfilov S.I. , Petrovskaya G.A. , Lunin B.S. , Eliseev O.L.
Reductive Activation of Mono‐ and Bimetallic Fe and Co Catalysts for CO Hydrogenation: Unusual Formation of Fe 0.88 Co 0.12 Phase and Synergistic Effect in the Catalysis
ChemCatChem. 2026. V.18. N3. e01415 . DOI: 10.1002/cctc.202501415 Scopus OpenAlex

Submitted:	Sep 16, 2025
Published online:	Feb 11, 2026

Scopus:	2-s2.0-105029737267
OpenAlex:	W7128700636

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