Martínez, J. A. Z., Náñez, S. E. G., Calvez, E. L., Porto, R. L., Cortez, I. E. M., Brousse, T. & Pavón, L. A. L. (2021) Layered Vanadium Phosphates as Electrodes for Electrochemical Capacitors Part II: The Case of VOPO4 center dot CTAB and K0.5VOPO4 center dot 1.5H(2)O. J. Electrochem. Soc. 168 090520.
Added by: Richard Baschera (2021-09-27 08:31:53) Last edited by: Richard Baschera (2021-09-27 09:09:06) |
Type de référence: Article DOI: 10.1149/1945-7111/ac23a0 Numéro d'identification (ISBN etc.): 1945-7111 Clé BibTeX: Martnez2021a Voir tous les détails bibliographiques |
Catégories: INTERNATIONAL, ST2E Créateurs: Brousse, Calvez, Cortez, Martínez, Náñez, Pavón, Porto Collection: J. Electrochem. Soc. |
Consultations : 1/311
Indice de consultation : 7% Indice de popularité : 1.75% |
Liens URLs https://doi.org/10.1149/1945-7111/ac23a0 |
Résumé |
In the present work two layered vanadium phosphates were prepared, VOPO4 • CTAB and K0.5VOPO4 • 1.5H2O as electrode materials for electrochemical capacitors. These materials contain different molecular species in their interlayer space leading to an electrochemical behavior that drastically differs from the crystalline phase VOPO4 • 2H2O, with water molecules in the interlayer space. In the case of VOPO4 • CTAB, it was found that CTAB molecules block the pathway of electrolyte ions into the crystalline structure avoiding an intercalation/deintercalation process. In the case of K0.5VOPO4• 1.5H2O, the K+ ions from the crystalline structure hinder the intercalation/deintercalation process leading around 73 and 71 percent of the charge arise from a capacitive process in 3 M LiOH and 3 M KOH, respectively.
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Publisher: The Electrochemical Society
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