Au Single Metal Atom for Carbon Dioxide Reduction Reaction
dc.contributor.author
dc.date.accessioned
2023-07-07T11:41:43Z
dc.date.available
2023-07-07T11:41:43Z
dc.date.issued
2023-06-05
dc.identifier.uri
dc.description.abstract
CO2 is the gas that contributes the most to the greenhouse effect and, therefore, to global warming. One of the greatest challenges facing humanity is the reduction of the concentration of CO2 in the air. Here, we analyze the possible use of Au1@g-C3N4 electrocatalyst to transform CO2 into add-ed-value products. We use density functional theory (DFT) to determine the reaction Gibbs ener-gies for eight electron-proton transfer reaction paths of the electrochemical carbon dioxide reduc-tion reaction (CO2RR) using a single Au atom supported on 2D carbon nitride support. Our sim-ulations classify the Au1@g-C3N4 electrocatalysts as 'beyond CO' since their formation is energet-ically favored, although their strong binding with a Au single atom does not allow the desorption process. DFT calculations revealed that the lowest energy pathway is CO2(g)→ COOH*→ CO*→ HCO*→ HCOH* → CH2OH* → CH2* →CH3* → CH4(g), where the first hydrogenation of CO to HCO is predicted as the rate-limiting step of the reaction with slightly lower potential than pre-dicted for Cu electrodes, the most effective catalysts for CO2RR. Methane is predicted to be the main reaction product after eight proton-electron transfers (CO2 + 8 H+ + 8e− → CH4 + 2H2O). The generation of formaldehyde is discarded due to the large formation energy of the adsorbed moiety and the production of methanol is slightly less favorable than methane formation. Our computa-tional study helps to identify suitable electrocatalysts for CO2RR by reducing the amount of metal and using stable and low-cost supports
dc.description.sponsorship
This research was funded by the Spanish Ministerio de Ciencia e Innovación (projects PID2021-127423NB-I00 to A.P. and PID2020-113711GB-I00 to M.S.) and the Generalitat de Catalunya (project 2021SGR0623 and ICREA Academia prize 2019 to A.P.). A.V.-L. is grateful for funding from the pre-doctoral fellowship (PRE2019-089647). S.P.-P. appreciates the economic support of the Marie Curie fellowship (H2020-MSCA-IF-2020-101020330)
dc.format.extent
12 p.
dc.format.mimetype
application/pdf
dc.language.iso
eng
dc.publisher
MDPI (Multidisciplinary Digital Publishing Institute)
dc.relation
PID2021-127423NB-I00
PID2020-113711GB-I00
dc.relation.isformatof
Reproducció digital del document publicat a: https://doi.org/10.3390/chemistry5020095
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Chemistry, 2022, vol. 5, p. 1395-1406
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Articles publicats (D-Q)
dc.rights
Reconeixement 4.0 Internacional
dc.rights.uri
dc.source
Vidal-López, Anna Posada-Pérez, Sergio Solà i Puig, Miquel Poater Teixidor, Albert 2022 Au Single Metal Atom for Carbon Dioxide Reduction Reaction Chemistry 5 1395 1406
dc.title
Au Single Metal Atom for Carbon Dioxide Reduction Reaction
dc.type
info:eu-repo/semantics/article
dc.rights.accessRights
info:eu-repo/semantics/openAccess
dc.relation.projectID
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2021-127423NB-I00/ES/CATÀLISIS PREDICTIVA PARA CAMBIAR EL ORDEN SECUENCIAL ENTRE EXPERIMENTOS I CÁLCULOS/
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-113711GB-I00/ES/DISEÑO Y SINTESIS DE FULLERENOS PARA LA CONSTRUCCION DE CELDAS SOLARES HIBRIDAS DE PEROVSKITA Y FULERENOS D ALTO RENDIMIENTO. UN ENFOQUE EXPERIMENTAL Y COMPUTACIONAL SINERGICO/
dc.type.version
info:eu-repo/semantics/publishedVersion
dc.identifier.doi
dc.identifier.idgrec
037165
dc.type.peerreviewed
peer-reviewed
dc.relation.FundingProgramme
dc.relation.ProjectAcronym
dc.identifier.eissn
2624-8549