Pd/C Catalysts Based on Synthetic Carbons with bi- and tri-Modal Pore-Size Distribution: Applications in Flow Chemistry

Pd/C Catalysts Based on Synthetic Carbons with bi- and tri-Modal Pore-Size Distribution: Applications in Flow Chemistry Научная публикация

Журнал

Catalysis Science & Technology
ISSN: 2044-4761

Вых. Данные

Год: 2016, Том: 6, Номер: 7, Страницы: 2387-2395 Страниц : 9 DOI: 10.1039/c5cy01401h

Авторы

Fan X. ¹ , Sans V. ² , Sharma S.K. ³ , Plucinski P.K. ³ , Zaikovskii V.I. ⁴ , Wilson K. ⁵ , Tennison S.R. ⁶ , Kozynchenko A. ⁶ , Lapkin A.A. ⁷

Организации

1	School of Chemical Engineering and Analytical Science, The University of Manchester, Oxford Road, Manchester, UK
2	Department of Chemical and Environmental Engineering, University of Nottingham, Nottingham, UK
3	Department of Chemical Engineering, University of Bath, Bath, UK
4	Boreskov Institute of Catalysis, Novosibirsk, Russia
5	European Bioenergy Research Institute, School of Engineering and Applied Science, Aston University, Birmingham, UK
6	MAST Carbon International Ltd, Basingstoke, UK
7	Department of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge, UK

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.

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 & Technology. 2016. V.6. N7. P.2387-2395. DOI: 10.1039/c5cy01401h WOS Scopus РИНЦ CAPlusCA OpenAlex Sciact

Полный текст от издателя

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.

Web of science:	WOS:000373608400040
Scopus:	2-s2.0-84963837784
РИНЦ:	27010472
Chemical Abstracts:	2015:1868989
Chemical Abstracts (print):	164:410206
OpenAlex:	W2175820171
Sciact:	9113

БД	Цитирований
Scopus	14
OpenAlex	12