Bimetallic Rh/Ir–Cu Metastable Nanoalloys as Promising Catalysts for Propane Prereforming Full article
| Journal |
Inorganic Chemistry
ISSN: 0020-1669 , E-ISSN: 1520-510X |
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| Output data | Year: 2025, DOI: 10.1021/acs.inorgchem.5c04567 | ||||||
| Tags | Bimetals, Catalysts, Hydrocarbons, Hydrogen, Water | ||||||
| Authors |
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| Affiliations |
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Funding (3)
| 1 | Ministry of Science and Higher Education of the Russian Federation | FWUR-2024-0033 |
| 2 | Ministry of Science and Higher Education of the Russian Federation | FWUZ-2025-0002 (125021302133-1)(075-03-2025-190) |
| 3 | Ministry of Science and Higher Education of the Russian Federation | FWUZ-2025-0003 (125021302132-4)(075-03-2025-190) |
Abstract:
In the present work, we synthesized and characterized new complex compounds, [Rh(NH3)5Cl][Cu(H2O)-(C2O4)2], [Ir(NH3)5Cl][Cu(H2O)(C2O4)2], and [RhxIr1–x(NH3)6]2[Cu(H2O)(C2O4)2]2[Cu(H2O)2(C2O4)2]·2H2O (x = 0, 0.25, 0.50, 0.75, 1). A detailed study of their thermal decomposition using ex situ and in situ PXRD allowed us to select the optimal conditions and synthesize a series of MxCu1–x (M = Rh, Ir) metastable nanoalloys. For the first time, single-phase metastable Ir0.50Cu0.50 and Ir0.40Cu0.60 nanoalloys were obtained. Nanoalloys were studied in the propane steam reforming reaction (prereforming) at WHSV = 4 000 mL·gcat–1·h–1, T = 300–500 °C, and p = 1 atm. The bimetallic Rh–Cu/Ce0.75Zr0.25O2 supported catalysts demonstrated high activity as well as greater hydrogen selectivity compared to the monometallic Rh sample, resulting in higher hydrogen productivity. Higher hydrogen productivity is achieved due to higher dispersion of the active component in bimetallic catalysts and due to inhibition of carbon monoxide methanation reactions in the overall rate of the steam reforming process.
Cite:
Sinitsa V.
, Urlukov A.
, Filatov E.
, Plyusnin P.
, Kuratieva N.
, Raikov D.
, Ishchenko A.
, Potemkin D.
, Korenev S.
Bimetallic Rh/Ir–Cu Metastable Nanoalloys as Promising Catalysts for Propane Prereforming
Inorganic Chemistry. 2025. DOI: 10.1021/acs.inorgchem.5c04567 WOS OpenAlex
Bimetallic Rh/Ir–Cu Metastable Nanoalloys as Promising Catalysts for Propane Prereforming
Inorganic Chemistry. 2025. DOI: 10.1021/acs.inorgchem.5c04567 WOS OpenAlex
Dates:
| Submitted: | Sep 29, 2025 |
| Accepted: | Dec 5, 2025 |
| Published online: | Dec 10, 2025 |
Identifiers:
| Web of science: | WOS:001636543700001 |
| OpenAlex: | W4417273913 |
Citing:
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