Improved ammonia production using Cu2O@poly-carbazole electrocatalysts in the electrochemical reduction of molecular nitrogen and nitrogen oxoanions

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dc.catalogadorjlo
dc.contributor.authorHerrán Maldonado, Luis Alberto
dc.contributor.authorVéliz-Silva, Diego F.
dc.contributor.authorPoblete Baeza, Colin
dc.contributor.authorLeiva Farias, Elías Guillermo
dc.contributor.authorHonores Sotelo, Jessica Scarlet
dc.contributor.authorLandaeta Campos, Esteban Alonso
dc.contributor.authorSancy Velásquez, Mamie Odette
dc.contributor.authorDel Río Quero, Rodrigo Rafael
dc.contributor.authorSáez Navarrete, César Antonio
dc.contributor.authorDalchiele, Enrique
dc.contributor.authorIsaacs Casanova, Mauricio Alejandro
dc.date.accessioned2025-03-11T18:45:41Z
dc.date.available2025-03-11T18:45:41Z
dc.date.issued2024
dc.description.abstractIn the present study, a Cu2O@PCz electrode for the nitrogen reduction reaction is proposed; this electrode takes advantage of the catalytic properties of Cu2O in conjunction with conducting polymers such as polycarbazole (PCz). This combination demonstrates an improvement in the catalytic activity and higher stability of this metal oxide in nitrogen electro-reduction reaction (NRR) and nitrogen oxoanion electro-reduction reaction (NORR) processes under aqueous conditions. On this basis, the material synthesized on FTO (SnO2 : F), Cu2O@PCz, exhibits a faradaic efficiency of around 38.83%, together with an NH3 productivity of 1.83 μg h−1 cm−2 in NRR type processes, on applying a potential of −0.8 V (V vs. Ag/AgCl). Similarly, in NORR type processes, the material exhibits NH3 and N2H4 productivity. The latter is the most relevant in terms of the yields obtained. Specifically, using nitrite (NO2−), an efficiency of around 77.72% was obtained, together with a formation rate of 37.02 μg h−1 cm−2 at a potential of −0.8 V (V vs. Ag/AgCl). Although N2H4 is a by-product of ammonia formation, this molecule can be considered an intermediate, which broadens the scope of this study for future research into the production of green chemicals. Finally, this research presents promising new routes for the production of NH3 at room temperature, highlighting the potential of low-cost materials, easy synthesis, and enhanced stability.
dc.format.extent11 páginas
dc.fuente.origenSCOPUS
dc.identifier.doi10.1039/d4ta02904f
dc.identifier.issn2050-7496
dc.identifier.scopusidSCOPUS_ID:85201924604
dc.identifier.urihttps://doi.org/10.1039/D4TA02904F
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/102497
dc.information.autorucEscuela de Química; Herrán Maldonado, Luis Alberto; 0000-0001-7893-3722; 247033
dc.information.autorucEscuela de Química; Poblete Baeza, Colin; S/I; 247016
dc.information.autorucEscuela de Química; Leiva Farias, Elías Guillermo; S/I; 1066424
dc.information.autorucEscuela de Química; Honores Sotelo, Jessica Scarlet; 0000-0003-1172-4728; 217991
dc.information.autorucEscuela de Química; Landaeta Campos, Esteban Alonso; S/I; 225227
dc.information.autorucEscuela de Construcción Civil; Sancy Velásquez, Mamie Odette; 0000-0001-9523-2629; 1015225
dc.information.autorucEscuela de Química; Del Río Quero, Rodrigo Rafael; 0000-0003-0315-6660; 1005788
dc.information.autorucEscuela de Ingeniería; Sáez Navarrete, César Antonio; 0000-0002-3940-143X; 104647
dc.information.autorucEscuela de Química; Isaacs Casanova, Mauricio Alejandro; 0000-0003-0503-0949; 1009751
dc.issue.numero37
dc.language.isoen
dc.nota.accesocontenido parcial
dc.revistaJournal of Materials Chemistry A
dc.rightsacceso restringido
dc.subject.ddc510
dc.subject.deweyMatemática física y químicaes_ES
dc.titleImproved ammonia production using Cu2O@poly-carbazole electrocatalysts in the electrochemical reduction of molecular nitrogen and nitrogen oxoanions
dc.typeartículo
sipa.codpersvinculados247033
sipa.codpersvinculados247016
sipa.codpersvinculados1066424
sipa.codpersvinculados217991
sipa.codpersvinculados225227
sipa.codpersvinculados1015225
sipa.codpersvinculados1005788
sipa.codpersvinculados104647
sipa.codpersvinculados1009751
sipa.trazabilidadSCOPUS;2024-09-15
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