Sodium‐Containing Surface Film Formation on Planar Metal–Oxide Electrodes with Potential Application for Sodium‐Ion and Sodium–Oxygen Batteries
Excellent, self‐improving sodiation rate capabilities in combination with high capacity retention upon galvanostatic charge/discharge cycling are found for oxygen‐deficient, carburized, and self‐organized titanium dioxide (TiO2−x) nanotubes (NTs). The sodiation mechanism is attributed to the formati...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley-VCH
2022-12-01
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| Series: | Advanced Energy & Sustainability Research |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/aesr.202200104 |
| _version_ | 1811186332770238464 |
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| author | Lukas Szabados Daniel Winkler David Stock Thöny Alexander Thomas Lörting Julia Kunze-Liebhäuser Engelbert Portenkirchner |
| author_facet | Lukas Szabados Daniel Winkler David Stock Thöny Alexander Thomas Lörting Julia Kunze-Liebhäuser Engelbert Portenkirchner |
| author_sort | Lukas Szabados |
| collection | DOAJ |
| description | Excellent, self‐improving sodiation rate capabilities in combination with high capacity retention upon galvanostatic charge/discharge cycling are found for oxygen‐deficient, carburized, and self‐organized titanium dioxide (TiO2−x) nanotubes (NTs). The sodiation mechanism is attributed to the formation of an acicular surface film as the active storage material with sodium (Na) peroxide (Na2O2) being the main component. Whether the proposed surface chemistry is unique for TiO2 NTs or serves as a common scheme for Na‐ion storage at metal oxide surfaces, in general, is not clear by now. Herein, three different materials, titanium(IV) oxide in the anatase and rutile phase and molybdenum(IV) oxide, are investigated in a planar electrode geometry toward their capability for Na‐ion storage. It is shown that all three materials under investigation demonstrate a significant progression of capacity increase upon cycling in combination with the formation of a Na‐oxide containing surface film. These “self‐improving” characteristics are found to significantly enhance the Na‐ion storage performance of the electrodes during long‐term galvanostatic cycling in a Na‐containing electrolyte. |
| first_indexed | 2024-04-11T13:44:05Z |
| format | Article |
| id | doaj.art-682397c705944ba3b8ad9a3e89967535 |
| institution | Directory Open Access Journal |
| issn | 2699-9412 |
| language | English |
| last_indexed | 2024-04-11T13:44:05Z |
| publishDate | 2022-12-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | Advanced Energy & Sustainability Research |
| spelling | doaj.art-682397c705944ba3b8ad9a3e899675352022-12-22T04:21:09ZengWiley-VCHAdvanced Energy & Sustainability Research2699-94122022-12-01312n/an/a10.1002/aesr.202200104Sodium‐Containing Surface Film Formation on Planar Metal–Oxide Electrodes with Potential Application for Sodium‐Ion and Sodium–Oxygen BatteriesLukas Szabados0Daniel Winkler1David Stock2Thöny Alexander3Thomas Lörting4Julia Kunze-Liebhäuser5Engelbert Portenkirchner6Institute of Physical Chemistry University of Innsbruck 6020 Innsbruck AustriaInstitute of Physical Chemistry University of Innsbruck 6020 Innsbruck AustriaInstitut für Konstruktion und Materialwissenschaften University of Innsbruck A-6020 Innsbruck AustriaInstitute of Physical Chemistry University of Innsbruck 6020 Innsbruck AustriaInstitute of Physical Chemistry University of Innsbruck 6020 Innsbruck AustriaInstitute of Physical Chemistry University of Innsbruck 6020 Innsbruck AustriaInstitute of Physical Chemistry University of Innsbruck 6020 Innsbruck AustriaExcellent, self‐improving sodiation rate capabilities in combination with high capacity retention upon galvanostatic charge/discharge cycling are found for oxygen‐deficient, carburized, and self‐organized titanium dioxide (TiO2−x) nanotubes (NTs). The sodiation mechanism is attributed to the formation of an acicular surface film as the active storage material with sodium (Na) peroxide (Na2O2) being the main component. Whether the proposed surface chemistry is unique for TiO2 NTs or serves as a common scheme for Na‐ion storage at metal oxide surfaces, in general, is not clear by now. Herein, three different materials, titanium(IV) oxide in the anatase and rutile phase and molybdenum(IV) oxide, are investigated in a planar electrode geometry toward their capability for Na‐ion storage. It is shown that all three materials under investigation demonstrate a significant progression of capacity increase upon cycling in combination with the formation of a Na‐oxide containing surface film. These “self‐improving” characteristics are found to significantly enhance the Na‐ion storage performance of the electrodes during long‐term galvanostatic cycling in a Na‐containing electrolyte.https://doi.org/10.1002/aesr.202200104batteriesNa ionsoxidesself-improvementsurface films |
| spellingShingle | Lukas Szabados Daniel Winkler David Stock Thöny Alexander Thomas Lörting Julia Kunze-Liebhäuser Engelbert Portenkirchner Sodium‐Containing Surface Film Formation on Planar Metal–Oxide Electrodes with Potential Application for Sodium‐Ion and Sodium–Oxygen Batteries Advanced Energy & Sustainability Research batteries Na ions oxides self-improvement surface films |
| title | Sodium‐Containing Surface Film Formation on Planar Metal–Oxide Electrodes with Potential Application for Sodium‐Ion and Sodium–Oxygen Batteries |
| title_full | Sodium‐Containing Surface Film Formation on Planar Metal–Oxide Electrodes with Potential Application for Sodium‐Ion and Sodium–Oxygen Batteries |
| title_fullStr | Sodium‐Containing Surface Film Formation on Planar Metal–Oxide Electrodes with Potential Application for Sodium‐Ion and Sodium–Oxygen Batteries |
| title_full_unstemmed | Sodium‐Containing Surface Film Formation on Planar Metal–Oxide Electrodes with Potential Application for Sodium‐Ion and Sodium–Oxygen Batteries |
| title_short | Sodium‐Containing Surface Film Formation on Planar Metal–Oxide Electrodes with Potential Application for Sodium‐Ion and Sodium–Oxygen Batteries |
| title_sort | sodium containing surface film formation on planar metal oxide electrodes with potential application for sodium ion and sodium oxygen batteries |
| topic | batteries Na ions oxides self-improvement surface films |
| url | https://doi.org/10.1002/aesr.202200104 |
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