Effect of pressure on a "111"-type iron pnictide superconductor
文献类型：期刊论文
| 作者 | Wang, XC ; Zhang, SJ ; Liu, QQ ; Deng, Z ; Lv, YX ; Zhu, JL ; Feng, SM ; Jin, CQ |
| 刊名 | HIGH PRESSURE RESEARCH
 |
| 出版日期 | 2011 |
| 卷号 | 31期号:1页码:7 |
| 关键词 | 43 K COMPOUND LIFEAS |
| ISSN号 | 0895-7959 |
| 通讯作者 | Jin, CQ: Chinese Acad Sci, Inst Phys, POB 603, Beijing 100190, Peoples R China. |
| 中文摘要 | A tin nanoparticle/polypyrrole (nano-Sn/PPy) composite was prepared by chemically reducing and coating Sn nanoparticles onto the PPy surface. The composite shows a much higher surface area than the pure nano-Sn reference sample, due to the porous higher surface area of PPy and the much smaller size of Sn in the nano-Sn/PPy composite than in the pure tin nanoparticle sample. Poly(vinylidene fluoride) (PVDF) and sodium carboxymethyl cellulose (CMC) were also used as binders, and the electrochemical performance was investigated. The electrochemical results show that both the capacity retention and the rate capability are in the same order of nano-Sn/PPy-CMC > nano-Sn/PPy-PVDF > nano-Sn-CMC > nano-Sn-PVDF. Scanning electronic microscopy (SEM) and electrochemical impedance spectroscopy (EIS) results show that CMC can prevent the formation of cracks in electrodes caused by the big volume changes during the charge-discharge process, and the PPy in the composite can provide a conducting matrix and alleviate the agglomeration of Sn nanoparticles. The present results indicate that the nano-Sn/PPy composite could be suitable for the next generation of anode materials with relatively good capacity retention and rate capability. |
| 收录类别 | SCI |
| 资助信息 | NSF; MOST of China |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/36532]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Wang, XC,Zhang, SJ,Liu, QQ,et al. Effect of pressure on a "111"-type iron pnictide superconductor[J]. HIGH PRESSURE RESEARCH,2011,31(1):7. |
| APA | Wang, XC.,Zhang, SJ.,Liu, QQ.,Deng, Z.,Lv, YX.,...&Jin, CQ.(2011).Effect of pressure on a "111"-type iron pnictide superconductor.HIGH PRESSURE RESEARCH,31(1),7. |
| MLA | Wang, XC,et al."Effect of pressure on a "111"-type iron pnictide superconductor".HIGH PRESSURE RESEARCH 31.1(2011):7. |
入库方式： OAI收割
来源：物理研究所
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