Effect of the oxidative treatment of nanoglobular carbon on the activity and selectivity of the Pd/C hydrogenation catalyst Full article
| Journal |
Reaction Kinetics, Mechanisms and Catalysis
ISSN: 1878-5190 , E-ISSN: 1878-5204 |
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| Output data | Year: 2025, DOI: 10.1007/s11144-025-02862-8 | ||
| Tags | Nanoglobular carbon, Oxidative treatment, Palladium catalysts, Furfural hydrogenation | ||
| Authors |
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| Affiliations |
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Funding (1)
| 1 | Ministry of Science and Higher Education of the Russian Federation | FWUR-2024-0039 |
Abstract:
It was found that the composition of the surface functional groups of the nanoglobular carbon (NGC) can be effectively altered by treatment with nitric acid solutions (concentration of 10 – 50 wt%). Such treatment has been shown to increase the concentration of acidic functional groups (carboxyl and phenol groups) on the NGC surface, without significantly affecting the structure and morphology of the material. During the preparation of Pd/NGC catalysts, the alterations in the surface functionality of NGC, induced by its oxidative treatment, resulted in an increase in the dispersion of the formed palladium nanoparticles, without affecting the reduction behavior of the supported palladium precursor. It was found that the oxidative treatment of the NGC support affects the performance of the obtained Pd/NGC catalysts in the aqueous-phase hydrogenation of furfural under hydrothermal conditions (150 °C, 3.0 MPa). Firstly, this oxidative pre-treatment allows for an almost twofold increase in the catalyst activity (in terms of furfural conversion in 1 h), which occurs only up to a certain limit, since a further increase in the concentration of nitric acid has no significant effect on the furfural conversion. Secondly, it was found that by varying the conditions of oxidative pre-treatment of NGC it is possible to regulate the directions of furfural conversion, thereby increasing or decreasing the selectivity to the products of competitive reaction pathways, primarily cyclopentanone and 4-oxopentanal.
Cite:
Shkrumeliak V.A.
, Mironenko R.M.
, Saybulina E.R.
, Arbuzov A.B.
, Gorbunova O.V.
, Trenikhin M.V.
, Gulyaeva T.I.
, Muromtsev I.V.
Effect of the oxidative treatment of nanoglobular carbon on the activity and selectivity of the Pd/C hydrogenation catalyst
Reaction Kinetics, Mechanisms and Catalysis. 2025. DOI: 10.1007/s11144-025-02862-8 OpenAlex
Effect of the oxidative treatment of nanoglobular carbon on the activity and selectivity of the Pd/C hydrogenation catalyst
Reaction Kinetics, Mechanisms and Catalysis. 2025. DOI: 10.1007/s11144-025-02862-8 OpenAlex
Dates:
| Submitted: | Mar 10, 2025 |
| Accepted: | May 12, 2025 |
| Published online: | May 22, 2025 |
Identifiers:
| OpenAlex: | W4410608460 |
Citing:
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