126532 20241125101140.0 doi 10.1039/d3dt00876b sideral 134009 ART-2023-134009 eng Ciria-Ramos, Isabel Universidad de Zaragoza Evaluation of triphenylene-based MOF ultrathin films for lithium batteries 2023 Access copy available to the general public Unrestricted Metal–organic frameworks (MOFs) are attractive candidates to meet the requirement of next-generation batteries, as functional materials with a high surface area, well-defined metal centers, and organic linkers through coordination bonds. Due to their great tunability, MOFs have been investigated as electrodes or electrolytes in lithium batteries and more recently as protective layers in anode-less batteries. Here, we synthesize a Ni3(HHTP)2 MOF directly at the air–liquid interface of a Langmuir trough and grow the electrode on a conductive substrate by the transference process. The characterization during Langmuir film formation shows that the addition of crystallization time during the compression process enhances the formation of 2D crystalline domains, as observed by in situ grazing-incidence X-ray diffraction. Next, the transferred Ni3(HHTP)2 ultrathin films were studied as working electrodes in Li batteries in a half-cell configuration and compared with bare copper. The results show that the Ni3(HHTP)2 film protects the Cu collector from oxidation, and the negative charge accumulates in the organic ligand during the lithiation process while NiII oxidizes to NiIII, unlike other triphenylene-based MOFs with CuII or CoII metal nodes. The galvanostatic plating–stripping cycles of the batteries show that the inclusion of the crystallization time improves the coulombic efficiency, especially significantly in the first cycles when the SEI is formed. This work shows the Langmuir technique as a useful tool to test MOF based materials for batteries with the advantages of using a low amount of raw materials and without the need to introduce additives (binder and electron conductor) in the electrodes. The electrochemical study of this type of electrode allows a first screening to synthesize electrodes based on MOFs and can be a tool for the preparation of protective coatings under optimized conditions. info:eu-repo/grantAgreement/ES/DGA/E31-20R info:eu-repo/grantAgreement/ES/DGA/LMP71-21 info:eu-repo/grantAgreement/ES/MICINN/PID2019-105881RB-I00 info:eu-repo/grantAgreement/ES/MICINN/PID2019-108247RA-I00 info:eu-repo/grantAgreement/ES/MICINN/RYC-2018-025222-I info:eu-repo/semantics/openAccess by-nc http://creativecommons.org/licenses/by-nc/3.0/es/ 3.5 2023 CHEMISTRY, INORGANIC & NUCLEAR 13 / 44 = 0.295 2023 Q2 T1 0.697 2023 Inorganic Chemistry 2023 Q1 6.6 2023 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Tejedor, Inés Universidad de Zaragoza (orcid)0000-0002-8267-9306 Caparros, Lucía Doñagueda, Beatriz Lacruz, Oscar Urtizberea, Ainhoa Universidad de Zaragoza (orcid)0000-0002-8424-9780 Roubeau, Olivier (orcid)0000-0003-2095-5843 Gascón, Ignacio Universidad de Zaragoza (orcid)0000-0002-3492-6456 Haro, Marta Universidad de Zaragoza (orcid)0000-0001-7246-2149 2012 755 Universidad de Zaragoza Dpto. Química Física Área Química Física 5001 065 Universidad de Zaragoza Dpto. Ciencia Tecnol.Mater.Fl. Área Cienc.Mater. Ingen.Metal. 52, 21 (2023), 7196-7207 Dalton Trans. Dalton Transactions 1477-9226 2442384 http://zaguan.unizar.es/record/126532/files/texto_completo.pdf Versión publicada 2676912 http://zaguan.unizar.es/record/126532/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:126532 articulos driver 2024-11-22-12:02:15 ARTICLE