Na-storage reactions of rutile TiNbO4
As a novel anode material for Na-ion battery, we evaluated rutile-type TiNbO4 synthesized by a sol−gel method. It was revealed for the first time that TiNbO4 showed reversible reactions of Na+-insertion and Na+-extraction in the potential ranges of 0.005–1.0 and 0.6–1.6 V vs. Na+/Na, respectively. T...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-10-01
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| Series: | Electrochemistry Communications |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1388248123001534 |
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| author | Hiroyuki Usui Yasuhiro Domi Tomoyuki Tanaka Masataka Takemoto Naoto Oishi Noriko Nitta Hiroki Sakaguchi |
| author_facet | Hiroyuki Usui Yasuhiro Domi Tomoyuki Tanaka Masataka Takemoto Naoto Oishi Noriko Nitta Hiroki Sakaguchi |
| author_sort | Hiroyuki Usui |
| collection | DOAJ |
| description | As a novel anode material for Na-ion battery, we evaluated rutile-type TiNbO4 synthesized by a sol−gel method. It was revealed for the first time that TiNbO4 showed reversible reactions of Na+-insertion and Na+-extraction in the potential ranges of 0.005–1.0 and 0.6–1.6 V vs. Na+/Na, respectively. TiNbO4 maintained its rutile structure even after charge−discharge cycling. The size of Na+ diffusion path along its c-axis was broadened with increasing Nb amount in TiNbO4, leading to the improvement in the reversible capacity. The TiNbO4 electrode with Nb 48 at.% exhibited a high capacity of 360 mA h g−1. The long-term cyclability and rate capability were also improved by increasing Nb amount. We consider that the wider space in the diffusion path increases the degree of freedom of Na+ occupancy position, which weakens the electrostatic repulsion between Na+ and Na+ to increase Na storage capacity. These results clearly demonstrate that TiNbO4 can be applied as a promising anode material. |
| first_indexed | 2024-03-11T19:20:56Z |
| format | Article |
| id | doaj.art-4d23d05c477b4c669268e2af8149d78a |
| institution | Directory Open Access Journal |
| issn | 1388-2481 |
| language | English |
| last_indexed | 2024-03-11T19:20:56Z |
| publishDate | 2023-10-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Electrochemistry Communications |
| spelling | doaj.art-4d23d05c477b4c669268e2af8149d78a2023-10-07T04:34:16ZengElsevierElectrochemistry Communications1388-24812023-10-01155107579Na-storage reactions of rutile TiNbO4Hiroyuki Usui0Yasuhiro Domi1Tomoyuki Tanaka2Masataka Takemoto3Naoto Oishi4Noriko Nitta5Hiroki Sakaguchi6Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, 4-101 Minami, Koyama-cho, Tottori 680-8552, Japan; Center for Research on Green Sustainable Chemistry, Tottori University, 4-101 Minami, Koyama-cho, Tottori 680-8552, Japan; Corresponding authors.Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, 4-101 Minami, Koyama-cho, Tottori 680-8552, Japan; Center for Research on Green Sustainable Chemistry, Tottori University, 4-101 Minami, Koyama-cho, Tottori 680-8552, JapanCourse of Chemistry and Biotechnology, Department of Engineering, Graduate School of Sustainability Science, Tottori University, 4-101 Minami, Koyama-cho, Tottori 680-8552, Japan; Center for Research on Green Sustainable Chemistry, Tottori University, 4-101 Minami, Koyama-cho, Tottori 680-8552, JapanCourse of Chemistry and Biotechnology, Department of Engineering, Graduate School of Sustainability Science, Tottori University, 4-101 Minami, Koyama-cho, Tottori 680-8552, Japan; Center for Research on Green Sustainable Chemistry, Tottori University, 4-101 Minami, Koyama-cho, Tottori 680-8552, JapanSchool of Engineering Science, Kochi University of Technology, 185 Miyanokuchi, Tosayamada, Kami, Kochi 782-8502, JapanSchool of Engineering Science, Kochi University of Technology, 185 Miyanokuchi, Tosayamada, Kami, Kochi 782-8502, JapanDepartment of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, 4-101 Minami, Koyama-cho, Tottori 680-8552, Japan; Center for Research on Green Sustainable Chemistry, Tottori University, 4-101 Minami, Koyama-cho, Tottori 680-8552, Japan; Corresponding authors.As a novel anode material for Na-ion battery, we evaluated rutile-type TiNbO4 synthesized by a sol−gel method. It was revealed for the first time that TiNbO4 showed reversible reactions of Na+-insertion and Na+-extraction in the potential ranges of 0.005–1.0 and 0.6–1.6 V vs. Na+/Na, respectively. TiNbO4 maintained its rutile structure even after charge−discharge cycling. The size of Na+ diffusion path along its c-axis was broadened with increasing Nb amount in TiNbO4, leading to the improvement in the reversible capacity. The TiNbO4 electrode with Nb 48 at.% exhibited a high capacity of 360 mA h g−1. The long-term cyclability and rate capability were also improved by increasing Nb amount. We consider that the wider space in the diffusion path increases the degree of freedom of Na+ occupancy position, which weakens the electrostatic repulsion between Na+ and Na+ to increase Na storage capacity. These results clearly demonstrate that TiNbO4 can be applied as a promising anode material.http://www.sciencedirect.com/science/article/pii/S1388248123001534Na-ion batteryRutile structureTiNbO4Sol-gel methodNb amountDiffusion path size |
| spellingShingle | Hiroyuki Usui Yasuhiro Domi Tomoyuki Tanaka Masataka Takemoto Naoto Oishi Noriko Nitta Hiroki Sakaguchi Na-storage reactions of rutile TiNbO4 Electrochemistry Communications Na-ion battery Rutile structure TiNbO4 Sol-gel method Nb amount Diffusion path size |
| title | Na-storage reactions of rutile TiNbO4 |
| title_full | Na-storage reactions of rutile TiNbO4 |
| title_fullStr | Na-storage reactions of rutile TiNbO4 |
| title_full_unstemmed | Na-storage reactions of rutile TiNbO4 |
| title_short | Na-storage reactions of rutile TiNbO4 |
| title_sort | na storage reactions of rutile tinbo4 |
| topic | Na-ion battery Rutile structure TiNbO4 Sol-gel method Nb amount Diffusion path size |
| url | http://www.sciencedirect.com/science/article/pii/S1388248123001534 |
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