Covalent organic frameworks based on electroactive naphthalenediimide as active electrocatalysts toward oxygen reduction reaction

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dc.contributor.authorMartínez-Fernández, Marcos
dc.contributor.authorMartínez-Periñán, Emiliano
dc.contributor.authorRoyuela, Sergio
dc.contributor.authorMartínez, José
dc.contributor.authorZamora, Felix
dc.contributor.authorLorenzo, Encarnación
dc.contributor.authorSegura Castedo, José Luis
dc.date.accessioned2024-02-08T17:14:30Z
dc.date.available2024-02-08T17:14:30Z
dc.date.issued2022
dc.description.abstractDeveloping organic electrocatalysts toward the oxygen reduction reaction (ORR) that avoid heteroatom doping processes and high-temperature carbonization is of great significance for the maturing of fuel cell applications. Herein, a series of two-dimensional imide-based covalent organic framework (COFs) electrocatalysts toward the ORR is reported. The hydrodynamic electrochemical study reveals that 3.5 electrons are exchanged during the ORR indicating that the process catalyzed by these COFs has a clear preference for the 4-electron reduction pathway. The COFs contain conjugated electroactive napthalenediimide (NDI) moieties that provides the active sites for the electrocatalysis and promotes the formation of COFs with face-to-face π-π stacked structures to provide intrinsic porosity and large surface areas. These COFs can be essentially considered as an organized pattern of active sites embedded in the pore walls of the COF. The choice of suitable comonomers with variable distortions from planarity offers the possibility of obtaining these electroactive COFs with similar redox ability but different degrees of porosity and interlaminar spacing. This work evidences a new insight into developing novel families of electrocatalysts from COFs. Structure and stacking fashion of the COF-systems are investigated on the basis of DFT calculations, as well as the photoabsorption spectra of the representative molecular entities and a proof-of-concept rationalization of the intermediate steps of the ORR mechanism.
dc.description.departmentDepto. de Química Orgánica
dc.description.facultyFac. de Ciencias Químicas
dc.description.refereedTRUE
dc.description.statuspub
dc.identifier.citationMartínez-Fernández, M.; Martínez-Periñán, E.; Royuela, S.; Martínez, J. I.; Zamora, F.; Lorenzo, E.; Segura, J. L. Covalent organic frameworks based on electroactive naphthalenediimide as active electrocatalysts toward oxygen reduction reaction. Applied Materials Today 2022, 26, 101384 DOI:10.1016/j.apmt.2022.101384.
dc.identifier.citationMartínez-Fernández, Marcos, et al. «Covalent Organic Frameworks Based on Electroactive Naphthalenediimide as Active Electrocatalysts toward Oxygen Reduction Reaction». Applied Materials Today, vol. 26, marzo de 2022, p. 101384. https://doi.org/10.1016/j.apmt.2022.101384.
dc.identifier.doi10.1016/j.apmt.2022.101384
dc.identifier.issn2352-9407
dc.identifier.officialurlhttps://doi.org/10.1016/j.apmt.2022.101384
dc.identifier.urihttps://hdl.handle.net/20.500.14352/100578
dc.journal.titleApplied Materials Today
dc.language.isoeng
dc.page.initial101384
dc.publisherElsevier
dc.rights.accessRightsopen access
dc.subject.cdu547
dc.subject.cdu54
dc.subject.keywordCOF
dc.subject.keywordCovalent organic frameworks
dc.subject.keywordNapthalenediimide
dc.subject.keywordElectrocatalysis
dc.subject.keywordOxygen reduction reaction
dc.subject.keywordMetal-free
dc.subject.keywordPyrolysis-free
dc.subject.ucmMateriales
dc.subject.unesco23 Química
dc.titleCovalent organic frameworks based on electroactive naphthalenediimide as active electrocatalysts toward oxygen reduction reaction
dc.title.alternativeRedes orgánicas covalentes basados en naftalendiimida electroactiva como electrocatalizadores activos para la reacción de reducción del oxígeno
dc.typejournal article
dc.type.hasVersionAO
dc.volume.number26
dspace.entity.typePublication
relation.isAuthorOfPublication78c95fd7-2774-4a6c-b42a-212d583cba93
relation.isAuthorOfPublication.latestForDiscovery78c95fd7-2774-4a6c-b42a-212d583cba93
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