Facile Aluminum Reduction Synthesis of Blue TiO2 with Oxygen Deficiency for Lithium-Ion Batteries
文献类型：期刊论文
| 作者 | Zheng; J; Ji; GB; 张鹏(正); Cao XZ(曹兴忠) ; Wang BY(王宝义); Zhang; P; Cao
|
| 刊名 | CHEMISTRY-A EUROPEAN JOURNAL
 |
| 出版日期 | 2015 |
| 卷号 | 21期号:50页码:18309-18315 |
| 关键词 | aluminum fuel cells lithium-ion batteries oxygen reduction titanium |
| 英文摘要 | An ultrafacile aluminum reduction method is reported herein for the preparation of blue TiO2 nanoparticles (donated as Al-TiO2, anatase phase) with abundant oxygen deficiency for lithium-ion batteries. Under aluminum reduction, the morphology of the TiO2 nanosheets changes from well-defined rectangular into uniform round or oval nanoparticles and the particle size also decreases from 60 to 31 nm, which can aggressively accelerate the lithium-ion diffusion. Electron paramagnetic resonance (EPR) and positron annihilation lifetime spectroscopy (PALS) results reveal that plentiful oxygen deficiencies relative to the Ti3+ species were generated in blue Al-TiO2; this effectively enhances the electron conductivity of the TiO2. X-ray photoelectron spectrometry (XPS) analysis indicates that a small peak is observed for the Al-O bond, which probably plays a very important role in the stabilization of the oxygen deficiencies/Ti3+ species. As a result, the blue Al-TiO2 possesses significantly higher capacity, better rate performance, and a longer cycle life than the white pure TiO2. Such improvements can be attributed to the decreased particle size, as well as the existence of the oxygen deficiencies/Ti3+ species. |
| 学科主题 | Chemistry |
| 类目[WOS] | Chemistry, Multidisciplinary |
| 收录类别 | SCI ; EI |
| WOS记录号 | WOS:000367186000039 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/228981]  |
| 专题 | 高能物理研究所_多学科研究中心 |
| 推荐引用方式 GB/T 7714 | Zheng,J,Ji,et al. Facile Aluminum Reduction Synthesis of Blue TiO2 with Oxygen Deficiency for Lithium-Ion Batteries[J]. CHEMISTRY-A EUROPEAN JOURNAL,2015,21(50):18309-18315. |
| APA | Zheng.,J.,Ji.,GB.,张鹏.,...&ZC.(2015).Facile Aluminum Reduction Synthesis of Blue TiO2 with Oxygen Deficiency for Lithium-Ion Batteries.CHEMISTRY-A EUROPEAN JOURNAL,21(50),18309-18315. |
| MLA | Zheng,et al."Facile Aluminum Reduction Synthesis of Blue TiO2 with Oxygen Deficiency for Lithium-Ion Batteries".CHEMISTRY-A EUROPEAN JOURNAL 21.50(2015):18309-18315. |
入库方式： OAI收割
来源：高能物理研究所
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