Fan, X., Sans, V., Sharma, S.K., Plucinski, P.K., Zaikovskii, V.A., Wilson, K., Tennison, S.R., Kozynchenko, A. and Lapkin, A.A. (2016). Pd/C catalysts based on synthetic carbons with bi- and tri-modal pore-size distribution:applications in flow chemistry. Catalysis Science and Technology, 6 (7), pp. 2387-2395.
Abstract
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.
Publication DOI: | https://doi.org/10.1039/c5cy01401h |
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Divisions: | College of Engineering & Physical Sciences > School of Infrastructure and Sustainable Engineering > Chemical Engineering & Applied Chemistry College of Engineering & Physical Sciences > Energy and Bioproducts Research Institute (EBRI) |
Additional Information: | This article is licensed under a Creative Commons Attribution 3.0 Unported Licence -Funding: EPSRC (EP/C519736/1); Overseas Research Students Awards Scheme; University of Bath Research Studentship; and Royal Society for the award of an Industry Fellowship. |
Uncontrolled Keywords: | Catalysis |
Publication ISSN: | 2044-4761 |
Last Modified: | 05 Aug 2024 16:53 |
Date Deposited: | 19 May 2016 12:15 |
Full Text Link: | |
Related URLs: |
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(Scopus URL) http://pubs.rsc ... 1H#!divAbstract (Publisher URL) |
PURE Output Type: | Article |
Published Date: | 2016-04-07 |
Published Online Date: | 2015-11-19 |
Accepted Date: | 2015-11-13 |
Submitted Date: | 2015-08-25 |
Authors: |
Fan, X.
Sans, V. Sharma, S.K. Plucinski, P.K. Zaikovskii, V.A. Wilson, K. ( ![]() Tennison, S.R. Kozynchenko, A. Lapkin, A.A. |