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Pd-Bi-Based Catalysts for Selective Oxidation of Glucose into Gluconic Acid: The Role of Local Environment of Nanoparticles in Dependence of Their Composition Научная публикация

Журнал Catalysts
ISSN: 2073-4344
Вых. Данные Год: 2024, Том: 14, Номер: 1, Номер статьи : 66, Страниц : 13 DOI: 10.3390/catal14010066
Ключевые слова heterogeneous catalysts; Pd-Bi catalysts; Pd-Bi nanoparticles; glucose oxidation; sodium gluconate; local environment
Авторы Shcherbakova-Sandu Mariya P. 1 , Saraev Andrey A. 2 , Knyazev Alexey S. 3 , Kurzina Irina A. 1
Организации
1 Department of Natural Compounds, Pharmaceutical and Medicinal Chemistry, National Research Tomsk State University, 36 Lenin Ave., 634050 Tomsk, Russia
2 Synchrotron Radiation Facility SKIF, Boreskov Institute of Catalysis, Nikol’skiy Ave., 1, 630559 Kol’tsovo, Russia
3 LLC “Engineering Chemical Technological Center”, 7 Alekseya Belenca str., 634050 Tomsk, Russia

Информация о финансировании (3)

1 Министерство науки и высшего образования Российской Федерации (с 15 мая 2018) FWUR-2024-0042
2 Министерство науки и высшего образования Российской Федерации (с 15 мая 2018) 075-15-2023-468 (123053100056-0)
3 Министерство науки и высшего образования Российской Федерации (с 15 мая 2018) FSWM-2020-0037

Реферат: 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.
Библиографическая ссылка: 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 CAPlusCA OpenAlex
Даты:
Поступила в редакцию: 8 дек. 2023 г.
Принята к публикации: 11 янв. 2024 г.
Опубликована в печати: 15 янв. 2024 г.
Опубликована online: 15 янв. 2024 г.
Идентификаторы БД:
Web of science: WOS:001149401200001
Scopus: 2-s2.0-85183350106
Chemical Abstracts: 2024:262702
Chemical Abstracts (print): 186:40475
OpenAlex: W4390877706
Цитирование в БД:
БД Цитирований
Scopus 1
Web of science 1
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