Reversibility of Noble Metal-Catalyzed Aprotic Li-O-2 Batteries
文献类型：期刊论文
| 作者 | Ma,Shunchao; Wu,Yang; Wang,Jiawei; Zhang,Yelong; Zhang,Yantao; Yan,Xinxiu; Wei,Yang; Liu,Peng; Wang,Jiaping; Jiang,Kaili |
| 刊名 | nano letters
 |
| 出版日期 | 2015 |
| 卷号 | 15期号:12页码:8084-8090 |
| 关键词 | LITHIUM-AIR BATTERY ELECTROCHEMICAL MASS-SPECTROMETRY OXYGEN REDUCTION REACTION METHANOL FUEL-CELL BIFUNCTIONAL CATALYST ION BATTERIES RU NANOPARTICLES DOPED GRAPHENE ELECTROLYTE CATHODE |
| 通讯作者 | wu,y |
| 英文摘要 | the aprotic li-o-2 battery has attracted a great deal of interest because, theoretically, it can store far more energy than today's batteries. toward unlocking the energy capabilities of this neotype energy storage system, noble metal-catalyzed high surface area carbon materials have been widely used as the 02 cathodes, and some of them exhibit excellent electrochemical performances in terms of round-trip efficiency and cycle life. however, whether these outstanding electrochemical performances are backed by the reversible formation/ decomposition of li2o2, i.e., the desired li-o-2 electrochemistry, remains unclear due to a lack of quantitative assays for the li-o-2 cells. here, noble metal (ru and pd)-catalyzed carbon nanotube (cnt) fabrics, prepared by magnetron sputtering, have been used as the o-2 cathode in aprotic li-o-2 batteries. the catalyzed li-o-2 cells exhibited considerably high round-trip efficiency and prolonged cycle life, which could match or even surpass some of the best literature results. however, a combined analysis using differential electrochemical mass spectrometry and fourier transform infrared spectroscopy, revealed that these catalyzed li-o-2 cells (particularly those based on pd-cnt cathodes) did not work according to the desired li-o-2 electrochemistry. instead the presence of noble metal catalysts impaired the cells' reversibility, as evidenced by the decreased o-2 recovery efficiency (the ratio of the amount of o-2 evolved during recharge/that consumed in the preceding discharge) coupled with increased co2 evolution during charging. the results reported here provide new insights into the o-2 electrochemistry in the aprotic li-o-2 batteries containing noble metal catalysts and exemplified the importance of the quantitative assays for the li-o-2 reactions in the course of pursuing truly rechargeable li-o-2 batteries. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000366339600045 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/64522]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Ma,Shunchao,Wu,Yang,Wang,Jiawei,et al. Reversibility of Noble Metal-Catalyzed Aprotic Li-O-2 Batteries[J]. nano letters,2015,15(12):8084-8090. |
| APA | Ma,Shunchao.,Wu,Yang.,Wang,Jiawei.,Zhang,Yelong.,Zhang,Yantao.,...&Jiang,Kaili.(2015).Reversibility of Noble Metal-Catalyzed Aprotic Li-O-2 Batteries.nano letters,15(12),8084-8090. |
| MLA | Ma,Shunchao,et al."Reversibility of Noble Metal-Catalyzed Aprotic Li-O-2 Batteries".nano letters 15.12(2015):8084-8090. |
入库方式： OAI收割
来源：长春应用化学研究所
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