dc.contributor.author | Teh, Wei Jie | |
dc.contributor.author | Kolb, Manuel J. | |
dc.contributor.author | Calle Vallejo, Federico | |
dc.contributor.author | Yeo, Boon Siang | |
dc.date.accessioned | 2023-03-21T19:06:51Z | |
dc.date.available | 2023-03-21T19:06:51Z | |
dc.date.issued | 2022-12-09 | |
dc.identifier.citation | Advanced Functional Materials 33(7) : (2023) // Article ID 2210617 | es_ES |
dc.identifier.issn | 1616-301X | |
dc.identifier.issn | 1616-3028 | |
dc.identifier.uri | http://hdl.handle.net/10810/60438 | |
dc.description.abstract | Cationic ammonium surfactants can be used together with a suitable catalyst to enhance the electroreduction of carbon dioxide (CO2RR). However, the underlying reasons for the improvements are not yet well understood. In this work, it is shown that didodecyldimethylammonium bromide (DDAB; [(C12H25)2N(CH3)2]Br), when added to the catholyte, can increase the rate of CO2 reduction to CO on silver electrodes by 12-fold at −0.9 V versus reversible hydrogen electrode. More importantly, electrochemical impedance spectroscopy revealed that DDAB lowered the charge transfer resistance (RCT) for CO2RR on silver, and these changes can be correlated with enhancements in partial current densities of CO. Interestingly, when DDAB is added onto two other CO-producing metals, namely, zinc and gold, the CO2RR charge transfer kinetics are improved only on Zn, but not on Au electrodes. By means of a semiempirical model combining density functional theory calculations and experimental data, it is concluded that DDAB generally strengthens the adsorption energies of the *COOH intermediate, which leads to enhanced CO production on silver and zinc, but not on gold. | es_ES |
dc.description.sponsorship | The authors thank the National University of Singapore (A-0004135-00-00) and National Research Foundation of Singapore (Urban Solutions and Sustainability, Industry Alignment Fund (Pre-Positioning) Programme, A-0004543-00-00) for financial support of this project. The grants RTI2018-095460-B-I00, RYC-2015-18996, and MDM-2017-0767 were funded by MCIN/AEI/ 10.13039/501100011033 and by the European Union. The use of supercomputing facilities at SURFsara was sponsored by NWO Physical Sciences, with financial support by NWO. | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | Wiley | es_ES |
dc.relation | info:eu-repo/grantAgreement/MICIN/RTI2018-095460-B-I00 | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.subject | electrochemical CO2 reduction | es_ES |
dc.subject | surfactants | es_ES |
dc.subject | silver | es_ES |
dc.subject | electrocatalysis | es_ES |
dc.subject | electrochemical impedance spectroscopy | es_ES |
dc.subject | density functional theory | es_ES |
dc.subject | carbon monoxide | es_ES |
dc.title | Enhanced Charge Transfer Kinetics for the Electroreduction of Carbon Dioxide on Silver Electrodes Functionalized with Cationic Surfactants | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.rights.holder | © 2022 Wiley‐VCH GmbH | es_ES |
dc.relation.publisherversion | https://onlinelibrary.wiley.com/doi/abs/10.1002/adfm.202210617 | es_ES |
dc.identifier.doi | 10.1002/adfm.202210617 | |
dc.departamentoes | Polímeros y Materiales Avanzados: Física, Química y Tecnología | es_ES |
dc.departamentoeu | Polimero eta Material Aurreratuak: Fisika, Kimika eta Teknologia | es_ES |