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Pàgina inicial > Articles > Articles publicats > Organocatalytic vs. Ru-based electrochemical hydrogenation of nitrobenzene in competition with the hydrogen evolution reaction |
Data: | 2020 |
Resum: | The electrochemical reduction of organic contaminants allows their removal from water. In this contribution, the electrocatalytic hydrogenation of nitrobenzene is studied using both oxidized carbon fibres and ruthenium nanoparticles supported on unmodified carbon fibres as catalysts. The two systems produce azoxynitrobenzene as the main product, while aniline is only observed in minor quantities. Although PhNO2 hydrogenation is the favoured reaction, the hydrogen evolution reaction (HER) competes in both systems under catalytic conditions. H2 formation occurs in larger amounts when using the Ru nanoparticle based catalyst. While similar reaction outputs were observed for both catalytic systems, DFT calculations revealed some significant differences related to distinct interactions between the catalytic material and the organic substrates or products, which could pave the way for the design of new catalytic materials. |
Ajuts: | Ministerio de Economía y Competitividad CTQ2015-64261-R Agencia Estatal de Investigación CTQ2017-89132-P Agencia Estatal de Investigación RTI2018-095038-B-I00 Agència de Gestió d'Ajuts Universitaris i de Recerca 2017/SGR-1323 |
Drets: | Tots els drets reservats. |
Llengua: | Anglès |
Document: | Article ; recerca ; Versió sotmesa a revisió |
Publicat a: | Dalton transactions, Vol. 49, Issue 19 (May 2020), p. 6446-6456, ISSN 1477-9234 |
Preprint 218 p, 3.2 MB |