Oxygen Reduction Contributing to Charge Transfer during the First Discharge of the CeO2-Bi2Fe4O9-Li Battery: In Situ X-ray Diffraction and X-ray Absorption Near-Edge Structure Investigation
文献类型：期刊论文
| 作者 | Liu, M ; Lin, C ; Gu, YL ; Yang, TY ; Gong, ZL ; Yin, GZ ; Gao, XY ; Zhou, XT ; Wen, W |
| 刊名 | JOURNAL OF PHYSICAL CHEMISTRY C
 |
| 出版日期 | 2014 |
| 卷号 | 118期号:27页码:14711—14722 |
| 关键词 | GAS SHIFT REACTION LITHIUM-ION BATTERIES CATHODE MATERIALS 1ST-PRINCIPLES CALCULATIONS ELECTRONIC-PROPERTIES NEGATIVE-ELECTRODE HIGH-CAPACITY OXIDE LI SPECTROSCOPY |
| ISSN号 | 1932-7447 |
| 通讯作者 | wenwen@sinap.ac.cn |
| 英文摘要 | Since pioneering work performed by Rouxel et al. that emphasizes the effects of anions in the ionic intercalation process, the role of oxygen ions in lithium ionic battery electrodes is of great interest since it will give new directions to further enhance the battery capacity. In this paper, Bi2Fe4O9-CeO2 was synthesized and was used as an anode for second lithium batteries application. A large amount of oxygen vacancies exist in both CeO2 and Bi2Fe4O9. In CeO2, oxygen vacancies are mainly located at the 111 plane, and in Bi2Fe4O9, oxygen vacancies are mainly located at the 002 plane. Li+ insertion into Bi2Fe4O9 produced high spin tetrahedral Fe2+, which is Jahn-Teller active and induces shrinkage of the Bi2Fe4O9 lattice and releases O-2. The released O-2 is further reduced and contributes to similar to 70 mAh/g during the first discharge process. The 002 plane of Bi2Fe4O9 is very reactive for oxygen reduction, where there are not only a lot of oxygen vacancies but also tetrahedral Fe3+ ions participating in producing more oxygen vacancies. This work gives new directions for future design of lithium battery electrodes, which can reversibly evolve/reduce O-2, and the O-2/O2- (or O-) redox couple is responsible for charge transfer. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000338980400001 |
| 公开日期 | 2015-03-13 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/14297]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 推荐引用方式 GB/T 7714 | Liu, M,Lin, C,Gu, YL,et al. Oxygen Reduction Contributing to Charge Transfer during the First Discharge of the CeO2-Bi2Fe4O9-Li Battery: In Situ X-ray Diffraction and X-ray Absorption Near-Edge Structure Investigation[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2014,118(27):14711—14722. |
| APA | Liu, M.,Lin, C.,Gu, YL.,Yang, TY.,Gong, ZL.,...&Wen, W.(2014).Oxygen Reduction Contributing to Charge Transfer during the First Discharge of the CeO2-Bi2Fe4O9-Li Battery: In Situ X-ray Diffraction and X-ray Absorption Near-Edge Structure Investigation.JOURNAL OF PHYSICAL CHEMISTRY C,118(27),14711—14722. |
| MLA | Liu, M,et al."Oxygen Reduction Contributing to Charge Transfer during the First Discharge of the CeO2-Bi2Fe4O9-Li Battery: In Situ X-ray Diffraction and X-ray Absorption Near-Edge Structure Investigation".JOURNAL OF PHYSICAL CHEMISTRY C 118.27(2014):14711—14722. |
入库方式： OAI收割
来源：上海应用物理研究所
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