Acceptorless alcohol dehydrogenation catalysed by Pd/C

Nicolau, Guillermo, Tarantino, Giulia and Hammond, Ceri ORCID: https://orcid.org/0000-0002-9168-7674 2019. Acceptorless alcohol dehydrogenation catalysed by Pd/C. ChemSusChem 12 (22) , pp. 4953-4961. 10.1002/cssc.201901313

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Abstract

Although the selective oxidation of alcohols to carbonyl compounds is a critical reaction, it is often plagued by several challenges related to sustainability. Here, the continuous, acceptorless dehydrogenation of alcohols to carbonyl compounds over heterogeneous catalysts was demonstrated, in the absence of oxidants, bases or acceptor molecules. In addition to improving selectivity and atom efficiency, the absence of an acceptor resulted in the co‐production of molecular H2, a clean energy source, and permitted dehydrogenation to proceed at >98 % selectivity at turnover frequency values amongst the highest in the literature. Moreover, excellent durability was observed during continuous operation over 48 h, reaching space‐time yields of 0.683 g(product) mL−1 h−1, better than the state of the art by over two orders of magnitude. Alongside these breakthroughs, the basic kinetic parameters of the reaction were also determined, allowing some of the elementary reaction steps to be identified.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Chemistry Cardiff Catalysis Institute (CCI)
Publisher:	Wiley
ISSN:	1864-5631
Funders:	Royal Society
Date of First Compliant Deposit:	14 October 2019
Date of Acceptance:	26 July 2019
Last Modified:	24 Nov 2024 17:00
URI:	https://orca.cardiff.ac.uk/id/eprint/126035

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