Na<sub>2</sub>Ti<sub>7</sub>O<sub>15</sub> Nanowires with an Oriented Tunnel Structure and High Mechanical Stability: A Potential Anode of Sodium-Ion Batteries and Gas Sensing Materials
Na<sub>2</sub>Ti<sub>7</sub>O<sub>15</sub> (NTO) can be selected as candidate anode for high-performance sodium-ion batteries (SIBs). However, there are few reports of research on the mechanical properties of low-dimensional NTO, which is important for the stabili...
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| Format: | Article |
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MDPI AG
2019-04-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/9/8/1673 |
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| author | Li-Ying Liu Yang Ding Bo Zhou Ning-Ning Jia Kuan Wang Zhen-Hua Zhang Man-Ling Sui |
| author_facet | Li-Ying Liu Yang Ding Bo Zhou Ning-Ning Jia Kuan Wang Zhen-Hua Zhang Man-Ling Sui |
| author_sort | Li-Ying Liu |
| collection | DOAJ |
| description | Na<sub>2</sub>Ti<sub>7</sub>O<sub>15</sub> (NTO) can be selected as candidate anode for high-performance sodium-ion batteries (SIBs). However, there are few reports of research on the mechanical properties of low-dimensional NTO, which is important for the stability of SIBs. In this work, by using the one-step hydrothermal method, NTO nanowires (NWs) with good orientation were prepared successfully. The transmission electron microscopy (TEM) and selected area electron diffraction (SAED)showed that the NTO NWs had a good aspect ratio and dispersion, with lengths over 20 μm. Further microstructure analysis showed that the nanowires grew along the (020) direction, and there were some "stripe" structures along the growing direction, which provides a good tunnel structure for Na ion channels. Further, the in situ mechanical analysis showed that the NTO NWs had excellent elastic deformation characteristics and mechanical structural stability. In addition, the NTO NWs also showed a good gas sensitivity to NO and NH<sub>3</sub>. Our results showed that the prepared NTO nanowires with a stripe tunnel oriented-structure and excellent mechanical properties may have a potential application in SIBs or other wearable sensor devices. |
| first_indexed | 2024-12-22T02:17:30Z |
| format | Article |
| id | doaj.art-169aa4c9771a405295d06fec8480edb3 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-12-22T02:17:30Z |
| publishDate | 2019-04-01 |
| publisher | MDPI AG |
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| series | Applied Sciences |
| spelling | doaj.art-169aa4c9771a405295d06fec8480edb32022-12-21T18:42:13ZengMDPI AGApplied Sciences2076-34172019-04-0198167310.3390/app9081673app9081673Na<sub>2</sub>Ti<sub>7</sub>O<sub>15</sub> Nanowires with an Oriented Tunnel Structure and High Mechanical Stability: A Potential Anode of Sodium-Ion Batteries and Gas Sensing MaterialsLi-Ying Liu0Yang Ding1Bo Zhou2Ning-Ning Jia3Kuan Wang4Zhen-Hua Zhang5Man-Ling Sui6Institute of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing 100124, ChinaCollege of Applied Science, Beijing University of Technology, Beijing 100124, ChinaInstitute of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing 100124, ChinaCollege of Applied Science, Beijing University of Technology, Beijing 100124, ChinaInstitute of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing 100124, ChinaInstitute of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing 100124, ChinaInstitute of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing 100124, ChinaNa<sub>2</sub>Ti<sub>7</sub>O<sub>15</sub> (NTO) can be selected as candidate anode for high-performance sodium-ion batteries (SIBs). However, there are few reports of research on the mechanical properties of low-dimensional NTO, which is important for the stability of SIBs. In this work, by using the one-step hydrothermal method, NTO nanowires (NWs) with good orientation were prepared successfully. The transmission electron microscopy (TEM) and selected area electron diffraction (SAED)showed that the NTO NWs had a good aspect ratio and dispersion, with lengths over 20 μm. Further microstructure analysis showed that the nanowires grew along the (020) direction, and there were some "stripe" structures along the growing direction, which provides a good tunnel structure for Na ion channels. Further, the in situ mechanical analysis showed that the NTO NWs had excellent elastic deformation characteristics and mechanical structural stability. In addition, the NTO NWs also showed a good gas sensitivity to NO and NH<sub>3</sub>. Our results showed that the prepared NTO nanowires with a stripe tunnel oriented-structure and excellent mechanical properties may have a potential application in SIBs or other wearable sensor devices.https://www.mdpi.com/2076-3417/9/8/1673Na<sub>2</sub>Ti<sub>7</sub>O<sub>15</sub>nanowirestunnel structuremechanical propertiessodium-ion batteries |
| spellingShingle | Li-Ying Liu Yang Ding Bo Zhou Ning-Ning Jia Kuan Wang Zhen-Hua Zhang Man-Ling Sui Na<sub>2</sub>Ti<sub>7</sub>O<sub>15</sub> Nanowires with an Oriented Tunnel Structure and High Mechanical Stability: A Potential Anode of Sodium-Ion Batteries and Gas Sensing Materials Applied Sciences Na<sub>2</sub>Ti<sub>7</sub>O<sub>15</sub> nanowires tunnel structure mechanical properties sodium-ion batteries |
| title | Na<sub>2</sub>Ti<sub>7</sub>O<sub>15</sub> Nanowires with an Oriented Tunnel Structure and High Mechanical Stability: A Potential Anode of Sodium-Ion Batteries and Gas Sensing Materials |
| title_full | Na<sub>2</sub>Ti<sub>7</sub>O<sub>15</sub> Nanowires with an Oriented Tunnel Structure and High Mechanical Stability: A Potential Anode of Sodium-Ion Batteries and Gas Sensing Materials |
| title_fullStr | Na<sub>2</sub>Ti<sub>7</sub>O<sub>15</sub> Nanowires with an Oriented Tunnel Structure and High Mechanical Stability: A Potential Anode of Sodium-Ion Batteries and Gas Sensing Materials |
| title_full_unstemmed | Na<sub>2</sub>Ti<sub>7</sub>O<sub>15</sub> Nanowires with an Oriented Tunnel Structure and High Mechanical Stability: A Potential Anode of Sodium-Ion Batteries and Gas Sensing Materials |
| title_short | Na<sub>2</sub>Ti<sub>7</sub>O<sub>15</sub> Nanowires with an Oriented Tunnel Structure and High Mechanical Stability: A Potential Anode of Sodium-Ion Batteries and Gas Sensing Materials |
| title_sort | na sub 2 sub ti sub 7 sub o sub 15 sub nanowires with an oriented tunnel structure and high mechanical stability a potential anode of sodium ion batteries and gas sensing materials |
| topic | Na<sub>2</sub>Ti<sub>7</sub>O<sub>15</sub> nanowires tunnel structure mechanical properties sodium-ion batteries |
| url | https://www.mdpi.com/2076-3417/9/8/1673 |
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