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Selective hydrogenation catalyst made via heat-processing of biogenic Pd nanoparticles and novel ‘green’ catalyst for Heck coupling using waste sulfidogenic bacteria
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Mikheenko, Iryna P., Bennett, James A., Omajali, Jacob B., Walker, Marc, Johnson, D. Barrie, Grail, Barry M., Wong-Pascua, David, Moseley, Jonathan D. and Macaskie, Lynne E. (2022) Selective hydrogenation catalyst made via heat-processing of biogenic Pd nanoparticles and novel ‘green’ catalyst for Heck coupling using waste sulfidogenic bacteria. Applied Catalysis B: Environmental, 306 . 121059. doi:10.1016/j.apcatb.2021.121059 ISSN 0926-3373.
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Official URL: http://dx.doi.org/10.1016/j.apcatb.2021.121059
Abstract
A heterogeneous Pd catalyst, biologically-mineralized palladium nanoparticles (bio-Pd), was synthesized using sulfidogenic bacteria which reduced soluble Pd(II) to catalytically-active Pd-nanoparticles (NPs). Heat treatment (processing) of bio-Pd (5 or 20 wt% on the cells) made by Desulfovibrio desulfuricans evolved supported Pd-catalyst comprising Pd-NPs held on large spherical hollow structures. The rate of hydrogenation of 2-butyne-1,4-diol was ~5-fold slower than for a commercial catalyst (~twice that of native bio-Pd), but with high selectivity to the alkene, fulfilling a key industrial criterion. In the Heck reaction, while bio-Pd showed a comparable reaction rate in ethyl cinnamate synthesis to that achieved by commercial Pd/C, heat-treated bio-Pd had negligible activity. D. desulfuricans bio-Pd was replaced by bio-Pd made using a consortium of waste acidophilic sulfidogenic bacteria (CAS) supplied from an unrelated primary remediation process. This gave comparable activity to commercial 5 wt% Pd/C in ethyl cinnamate synthesis, signposting an economic, scalable route to catalyst manufacture.
Item Type: | Journal Article | ||||||||
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||||||
Journal or Publication Title: | Applied Catalysis B: Environmental | ||||||||
Publisher: | Elsevier BV | ||||||||
ISSN: | 0926-3373 | ||||||||
Official Date: | 5 June 2022 | ||||||||
Dates: |
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Volume: | 306 | ||||||||
Article Number: | 121059 | ||||||||
DOI: | 10.1016/j.apcatb.2021.121059 | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Access rights to Published version: | Open Access (Creative Commons) |
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