المؤلفون: André, E., Cornu, D., Pérez Ramírez, L., Durand, P., Gallet, J.-J., Bournel, F., Rochet, F., Ruby, C., Carteret, C., Coustel, R.

المصدر: Dalton Transactions: An International Journal of Inorganic Chemistry; 6/21/2024, Vol. 53 Issue 23, p9952-9963, 12p

مصطلحات موضوعية: PHOTOELECTRON spectroscopy, DEHYDRATION, HUMIDITY control, DENSITY functional theory, BINDING energy

مستخلص: The structural, spectroscopic and electronic properties of Na and K birnessites were investigated from ambient conditions (birA) to complete dehydration, and the involved mechanisms were scrutinized. Density Functional Theory (DFT) simulations were employed to derive structural models for lamellar A0.33MnO2·xH2O (A = Na⁺ or K⁺, x = 0 or 0.66), subsequently compared with the experimental results obtained for Na0.30MnO2·0.75H2O and K0.22MnO2·0.77H2O materials. Thermal analysis (TGA-DSC), X-ray diffraction (XRD), Fourier Transform Infrared (FTIR) spectroscopy, and Near Ambient Pressure X-ray Photoemission Spectroscopy (NAP-XPS) measurements were conducted for both birnessites. Dehydration under vacuum, annealing, or controlled relative humidity were considered. Results indicated that complete birnessite dehydration was a two-stage process. In the first stage, water removal from the interlayer of fully hydrated birnessite (birA) down to a molar H2O/A ratio of ∼2 (birB) led to the progressive shrinkage of the interlayer distance (3% for Na birnessite, 1% for K birnessite). In the second stage, water-free (birC) domains with a shorter interlayer distance (20% for Na birnessite, 10% for K birnessite) appeared and coexisted with birB domains. Then, birB was essentially transformed into birC when complete dehydration was achieved. The vibrational properties of birA were consistent with strong intermolecular interactions among water molecules, whereas partially dehydrated birnessite (birB) showed a distinct feature, with 3 (for Na-bir) and 2 (for K-bir) vibrations that were reproduced by DFT calculations for organized water into the interlayer (x = 0.66). The study also demonstrated that the electronic structure of Na birnessite depends on the interlayer water content. The external Na⁺ electronic level (Na 2p) was slightly destabilized (+0.3 eV binding energy) under near ambient conditions (birA) compared to drier conditions (birB and birC). [ABSTRACT FROM AUTHOR]

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المؤلفون: Capone, F., Sottmann, J., Meunier, V., Pérez Ramírez, L., Grimaud, A., Iadecola, A., Scardamaglia, M., Rueff, J.-P., Dedryvère, R.

المساهمون: Réseau sur le stockage électrochimique de l'énergie (RS2E), Aix Marseille Université (AMU)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Collège de France (CdF (institution))-Ecole Nationale Supérieure de Chimie de Paris - Chimie ParisTech-PSL (ENSCP), Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Pau et des Pays de l'Adour (UPPA)-Institut de Chimie - CNRS Chimie (INC-CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Université Grenoble Alpes (UGA)-Nantes Université (Nantes Univ)-Université de Montpellier (UM)-Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM), Université de Montpellier (UM), PHysicochimie des Electrolytes et Nanosystèmes InterfaciauX (PHENIX), Institut de Chimie - CNRS Chimie (INC-CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Synchrotron SOLEIL (SSOLEIL), Centre National de la Recherche Scientifique (CNRS), Chimie du solide et de l'énergie (CSE), Collège de France (CdF (institution))-Institut de Chimie - CNRS Chimie (INC-CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Collège de France - Chaire Chimie du solide et énergie, Collège de France (CdF (institution))-Institut de Chimie - CNRS Chimie (INC-CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Collège de France (CdF (institution))-Institut de Chimie - CNRS Chimie (INC-CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), MAX IV Lab, S-22594 Lund, Sweden, Lund University, Laboratoire de Chimie Physique - Matière et Rayonnement (LCPMR), Institut des sciences analytiques et de physico-chimie pour l'environnement et les materiaux (IPREM), Université de Pau et des Pays de l'Adour (UPPA)-Institut de Chimie - CNRS Chimie (INC-CNRS)-Centre National de la Recherche Scientifique (CNRS), ANR-10-LABX-0076,STORE-EX,Laboratory of excellency for electrochemical energy storage(2010)

المصدر: ISSN: 1754-5692.

مصطلحات موضوعية: Lithium-ion batteries, SEI, Carbonaceous anodes, NAP-XPS, [CHIM.MATE]Chemical Sciences/Material chemistry, [CHIM.ANAL]Chemical Sciences/Analytical chemistry, [CHIM.POLY]Chemical Sciences/Polymers, [CHIM.THEO]Chemical Sciences/Theoretical and/or physical chemistry

الوصف: International audience ; The dynamic formation of chemical species composing the solid electrolyte interphase (SEI) layer at the surface of a carbonaceous electrode in a carbonate-based liquid electrolyte was observed in real-time using operando near-ambient pressure XPS (NAP-XPS). The potential of the glassy carbon electrode vs. metallic lithium was controlled during the XPS experiment. By following the binding energy shifts as a function of applied potential, we could identify the main SEI species and observe their deposition on the electrode surface during the formation of the SEI. These results demonstrate that NAP-XPS is a powerful tool to investigate the SEI formation and stability in Li- and post-Li-ion batteries, paving the way for future studies on the effect of electrolyte additives and solvent mixtures on battery performance.

العلاقة: hal-04498177; https://hal.science/hal-04498177Test; https://hal.science/hal-04498177/documentTest; https://hal.science/hal-04498177/file/Operando%20observation%20SEI%20glassy%20carbon_HAL.pdfTest

الإتاحة: https://doi.org/10.1039/d3ee03228kTest
https://hal.science/hal-04498177Test
https://hal.science/hal-04498177/documentTest
https://hal.science/hal-04498177/file/Operando%20observation%20SEI%20glassy%20carbon_HAL.pdfTest

المؤلفون: Capone, F. G., Sottmann, J., Meunier, V., Pérez Ramírez, L., Grimaud, A., Iadecola, A., Scardamaglia, M., Rueff, J.-P., Dedryvεave;re, R.

المصدر: Energy & Environmental Science; 2/21/2024, Vol. 17 Issue 4, p1509-1519, 11p

المؤلفون: Gómez Pardiñas, Sonia María, Fontela Vivanco, Eva, Pérez Ramírez, L.

المصدر: Revista gallega de psiquiatría y neurociencias, ISSN 1138-5189, Nº. 10, 2012, pags. 87-91

وصف الملف: application/pdf

العلاقة: https://dialnet.unirioja.es/servlet/oaiart?codigo=5157398Test; (Revista) ISSN 1138-5189

الإتاحة: https://dialnet.unirioja.es/servlet/oaiart?codigo=5157398Test

المؤلفون: Ramos Caneda, A., Gómez Pardiñas, Sonia María, González Santos, Mónica, Pérez Ramírez, L., Miguel Arias, D.

المصدر: Revista gallega de psiquiatría y neurociencias, ISSN 1138-5189, Nº. 11, 2012, pags. 178-180

وصف الملف: application/pdf

العلاقة: https://dialnet.unirioja.es/servlet/oaiart?codigo=5114938Test; (Revista) ISSN 1138-5189

الإتاحة: https://dialnet.unirioja.es/servlet/oaiart?codigo=5114938Test

المؤلفون: Dopico González, I., Bermúdez Míguez, S., González Santos, Mónica, Avila, J.M., Pérez Ramírez, L.

المصدر: Revista gallega de psiquiatría y neurociencias, ISSN 1138-5189, Nº. 11, 2012, pags. 174-177

وصف الملف: application/pdf

العلاقة: https://dialnet.unirioja.es/servlet/oaiart?codigo=5114937Test; (Revista) ISSN 1138-5189

الإتاحة: https://dialnet.unirioja.es/servlet/oaiart?codigo=5114937Test

المؤلفون: Pérez Ramírez, L., Amboage Paz, M. T., Ferrero Álvarez, T., Bajo Lema, J., Ramos Caneda, A.

المصدر: Revista gallega de psiquiatría y neurociencias, ISSN 1138-5189, Nº. 11, 2012, pags. 166-168

وصف الملف: application/pdf

العلاقة: https://dialnet.unirioja.es/servlet/oaiart?codigo=5114934Test; (Revista) ISSN 1138-5189

الإتاحة: https://dialnet.unirioja.es/servlet/oaiart?codigo=5114934Test

المؤلفون: Capone, F. G., Sottmann, J., Meunier, V., Pérez Ramírez, L., Grimaud, A., Iadecola, A., Scardamaglia, M., Rueff, J. P., Dedryvère, R.

المصدر: Energy and Environmental Science.

مصطلحات موضوعية: Naturvetenskap, Kemi, Materialkemi, Natural Sciences, Chemical Sciences, Materials Chemistry

الوصف: The dynamic formation of chemical species composing the solid electrolyte interphase (SEI) layer at the surface of a carbonaceous electrode in a carbonate-based liquid electrolyte was observed in real-time using operando near-ambient pressure XPS (NAP-XPS). The potential of the glassy carbon electrode vs. metallic lithium was controlled during the XPS experiment. By following the binding energy shifts as a function of applied potential, we could identify the main SEI species and observe their deposition on the electrode surface during the formation of the SEI. These results demonstrate that NAP-XPS is a powerful tool to investigate the SEI formation and stability in Li- and post-Li-ion batteries, paving the way for future studies on the effect of electrolyte additives and solvent mixtures on battery performance.

الوصول الحر: https://lup.lub.lu.se/record/610dedd9-93e9-4da5-bb2e-d7128489ef71Test
http://dx.doi.org/10.1039/d3ee03228kTest