Pd/C Catalysts Based on Synthetic Carbons with bi- and tri-Modal Pore-Size Distribution: Applications in Flow Chemistry Научная публикация
Журнал |
Catalysis Science and Technology
ISSN: 2044-4753 , E-ISSN: 2044-4761 |
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Вых. Данные | Год: 2016, Том: 6, Номер: 7, Страницы: 2387-2395 Страниц : 9 DOI: 10.1039/c5cy01401h | ||||||||||||||
Ключевые слова | Catalyst supports; Catalysts; Hydrogenation; Nanoparticles; Pore size; Size distribution | ||||||||||||||
Авторы |
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Организации |
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Информация о финансировании (4)
1 | Engineering and Physical Sciences Research Council | EP/C519736/1 |
2 | The University of Bath | |
3 | Royal Society | |
4 | The University of Bath |
Реферат:
Two new types of phenolic resin-derived synthetic carbons with bi-modal and tri-modal pore-size distributions were used as supports for Pd catalysts. The catalysts were tested in chemoselective hydrogenation and hydrodehalogenation reactions in a compact multichannel flow reactor. Bi-modal and tri-modal micro-mesoporous structures of the synthetic carbons were characterised by N2 adsorption. HR-TEM, PXRD and XPS analyses were performed for characterising the synthesised catalysts. N2 adsorption revealed that tri-modal synthetic carbon possesses a well-developed hierarchical mesoporous structure (with 6.5 nm and 42 nm pores), contributing to a larger mesopore volume than the bi-modal carbon (1.57 cm3 g−1versus 1.23 cm3 g−1). It was found that the tri-modal carbon promotes a better size distribution of Pd nanoparticles than the bi-modal carbon due to presence of hierarchical mesopore limitting the growth of Pd nanoparticles. For all the model reactions investigated, the Pd catalyst based on tri-modal synthetic carbon (Pd/triC) show high activity as well as high stability and reproducibility. The trend in reactivities of different functional groups over the Pd/triC catalyst follows a general order alkyne ≫ nitro > bromo ≫ aldehyde.
Библиографическая ссылка:
Fan X.
, Sans V.
, Sharma S.K.
, Plucinski P.K.
, Zaikovskii V.I.
, Wilson K.
, Tennison S.R.
, Kozynchenko A.
, Lapkin A.A.
Pd/C Catalysts Based on Synthetic Carbons with bi- and tri-Modal Pore-Size Distribution: Applications in Flow Chemistry
Catalysis Science and Technology. 2016. V.6. N7. P.2387-2395. DOI: 10.1039/c5cy01401h WOS Scopus РИНЦ
Pd/C Catalysts Based on Synthetic Carbons with bi- and tri-Modal Pore-Size Distribution: Applications in Flow Chemistry
Catalysis Science and Technology. 2016. V.6. N7. P.2387-2395. DOI: 10.1039/c5cy01401h WOS Scopus РИНЦ
Файлы:
Полный текст от издателя
Даты:
Поступила в редакцию: | 25 авг. 2015 г. |
Принята к публикации: | 13 нояб. 2015 г. |
Опубликована online: | 19 нояб. 2015 г. |
Опубликована в печати: | 7 апр. 2016 г. |
Идентификаторы БД:
Web of science | WOS:000373608400040 |
Scopus | 2-s2.0-84963837784 |
РИНЦ | 27010472 |
Chemical Abstracts | 2015:1868989 |
Chemical Abstracts (print) | 164:410206 |
OpenAlex | W2175820171 |