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Espinosa-Angeles, J. C., Goubard-Bretesche, N., Quarez, E., Payen, C., Sougrati, M.-T., Crosnier, O. & Brousse, T. (2021) Investigating the Cycling Stability of Fe2WO6 Pseudocapacitive Electrode Materials. Nanomaterials, 11 1405. 
Added by: Richard Baschera (2021-07-08 14:51:51)   Last edited by: Richard Baschera (2021-07-08 14:55:36)
Type de référence: Article
DOI: 10.3390/nano11061405
Clé BibTeX: EspinosaAngeles2021
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Catégories: MIOPS, ST2E
Créateurs: Brousse, Crosnier, Espinosa-Angeles, Goubard-Bretesche, Payen, Quarez, Sougrati
Collection: Nanomaterials
Consultations : 2/295
Indice de consultation : 8%
Indice de popularité : 2%
The stability upon cycling of Fe2WO6 used as a negative electrode material for electrochemical capacitors was investigated. The material was synthesized using low temperature conditions for the first time (220 degrees C). The electrochemical study of Fe2WO6 in a 5 M LiNO3 aqueous electrolyte led to a specific and volumetric capacitance of 38 F g(-1) and 240 F cm(-3) when cycled at 2 mV center dot s(-1), respectively, associated with a minor capacitance loss after 10,000 cycles. In order to investigate this very good cycling stability, both surface and bulk characterization techniques (such as Transmission Electron Microscopy, Mossbauer spectroscopy, and magnetization measurements) were used. Only a slight disordering of the Fe3+ cations was observed in the structure, explaining the good stability of the Fe2WO6 upon cycling. This study adds another pseudocapacitive material to the short list of compounds that exhibit such a behavior up to now.
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