Pd-Bi-Based Catalysts for Selective Oxidation of Glucose into Gluconic Acid: The Role of Local Environment of Nanoparticles in Dependence of Their Composition Full article
| Journal |
Catalysts
ISSN: 2073-4344 |
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| Output data | Year: 2024, Volume: 14, Number: 1, Article number : 66, Pages count : 13 DOI: 10.3390/catal14010066 | ||||||
| Tags | heterogeneous catalysts; Pd-Bi catalysts; Pd-Bi nanoparticles; glucose oxidation; sodium gluconate; local environment | ||||||
| Authors |
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| Affiliations |
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Funding (3)
| 1 | Ministry of Science and Higher Education of the Russian Federation | FWUR-2024-0042 |
| 2 | Ministry of Science and Higher Education of the Russian Federation | 075-15-2023-468 (123053100056-0) |
| 3 | Ministry of Science and Higher Education of the Russian Federation | FSWM-2020-0037 |
Abstract:
Palladium–bismuth nanomaterials are used in various chemical applications such detectors, electrodes, and catalysts. Pd-Bi catalysts are attracting widespread interest because these catalysts enable the production of valuable products quickly and efficiently, and are environmentally friendly. However, the composition of the catalyst can have a significant impact on its catalytic performance. In this work, we identified a correlation between the composition of the catalyst and its efficiency in converting glucose into sodium gluconate. It was found that the conversion decreases with increasing bismuth content. The most active catalyst was the 0.35Bi:Pd sample with a lower bismuth content (glucose conversion of 57%). TEM, SEM, EXAFS, and XANES methods were used to describe, in detail, the surface properties of the xBi:Pd/Al2O3 catalyst samples. The increase in particle size with increasing bismuth content, observed in the TEM micrographs, was associated with the low melting point of bismuth (271 °C). The SEM method showed that palladium and bismuth particles were uniformly distributed over the surface of the support in close proximity to each other, which allowed us to conclude that an alloy of non-stoichiometric composition was formed. The EXAFS and XANES methods established that bismuth was located on the surface of the nanoparticle predominantly in an oxidized state.
Cite:
Shcherbakova-Sandu M.P.
, Saraev A.A.
, Knyazev A.S.
, Kurzina I.A.
Pd-Bi-Based Catalysts for Selective Oxidation of Glucose into Gluconic Acid: The Role of Local Environment of Nanoparticles in Dependence of Their Composition
Catalysts. 2024. V.14. N1. 66 :1-13. DOI: 10.3390/catal14010066 WOS Scopus ANCAN OpenAlex publication_identifier_short.sciact_skif_identifier_type
Pd-Bi-Based Catalysts for Selective Oxidation of Glucose into Gluconic Acid: The Role of Local Environment of Nanoparticles in Dependence of Their Composition
Catalysts. 2024. V.14. N1. 66 :1-13. DOI: 10.3390/catal14010066 WOS Scopus ANCAN OpenAlex publication_identifier_short.sciact_skif_identifier_type
Dates:
| Submitted: | Dec 8, 2023 |
| Accepted: | Jan 11, 2024 |
| Published print: | Jan 15, 2024 |
| Published online: | Jan 15, 2024 |
Identifiers:
| Web of science: | WOS:001149401200001 |
| Scopus: | 2-s2.0-85183350106 |
| Chemical Abstracts: | 2024:262702 |
| Chemical Abstracts (print): | 186:40475 |
| OpenAlex: | W4390877706 |
| publication_identifier.sciact_skif_identifier_type: | 2171 |