| 查看: 2238 | 回复: 34 | ||
| 【奖励】 本帖被评价31次，作者victor417增加金币 24.4 个 | ||
| 当前只显示满足指定条件的回帖，点击这里查看本话题的所有回帖 | ||
[资源]
关于磷化铁FeP作为锂离子电池负极材料的好文章
|
||
|
题目：Well-dispersed and porous FeP@C nanoplates with stable and ultrafast lithium storage performance through conversion reaction mechanism 摘要：Conformally carbon-coated FeP (FeP@C) nanoplates with a porous feature are synthesized by integrating three simple approaches: hydrothermal growth of Fe2O3 nanoplates, the spatial introduction of conformal carbon coating, and chemical conversion of an intermediate into FeP by a low-temperature phosphidation strategy. The introduction of carbon coating not only serves as a buttering to effectively prevent the restacking of nanoplates, but also largely improves electrical conductivity and reinforces the structural robustness of FeP. The obtained FeP@C nanoplates show two-dimensional morphology and possess a large surface-area-to-volume-ratio and abundant inner mesopores with a high specific surface area. As an anode of lithium-ion batteries (LIBs), the prepared FeP@C nanoplates exhibit exceptionally high electrochemical performance, which largely outperforms the Fe3O4@C counterpart under identical morphological properties in experimental and simulated results. As a result, the FeP@C nanoplates exhibit a reversible specific capacity of 720 mA h g−1 and a capacity retention rate of 96% after 100 cycles at a current density of 200 mA g−1. Even at a higher current density of 500 mA g−1, it still delivers a stable capacity of 610 mA h g−1 within 400 cycles with negligible capacity fading, which opens venues for long life-time applications of LIBs. Furthermore, the superior rate capability of such anodes is also obtained with a reversible specific capacity of 347 mA h g−1 at 5000 mA g−1. The outstanding lithium ion storage properties of the FeP@C nanoplates may be attributed to the reduced energy barrier for the Li storage reaction, shortened electronic/ionic transfer paths, and the physical buffering effect rooted in the rational integration of the phosphide-based species, plate-like nanostructure and conformal carbon surface modification. |
回复此楼» 本帖附件资源列表
-
欢迎监督和反馈：小木虫仅提供交流平台，不对该内容负责。
本内容由用户自主发布，如果其内容涉及到知识产权问题，其责任在于用户本人，如对版权有异议，请联系邮箱：xiaomuchong@tal.com - 附件 1 : c6ta04521a.pdf
2016-07-23 15:38:59, 1.43 M
» 猜你喜欢
青岛大学化学化工学院分子测量学研究院2026年招收博士研究生
已经有0人回复
-
香港科技大学（广州）诚招电催化方向博士生（2026秋入学）
已经有0人回复
-
物理化学论文润色/翻译怎么收费?
已经有60人回复
-
求助Cu2+1O的CIF文件(PDF: 05-0667)
已经有1人回复
-
KAUST（阿卜杜拉国王科技大学）MXene 器件方向博士后招聘
已经有0人回复
-
沙特阿拉伯阿卜杜拉国王科技大学（KAUST）电池方向博士后招聘
已经有0人回复
-
福州大学新能源材料与工程研究院招收2026年入学博士
已经有0人回复
-
海南师范大学2026年博士研究生招收 (在职想提升学历人员可报考) 申请考核制
已经有0人回复
-
锂离子电池循环寿命衰减过快，求机理分析与改进思路
已经有1人回复
-
求博导收留
已经有5人回复
» 本主题相关商家推荐: (我也要在这里推广)
8楼2016-07-25 05:52:22
简单回复
lwg32楼
2016-07-23 16:34
回复
五星好评 顶一下，感谢分享！
2016-07-23 17:23
回复
五星好评 顶一下，感谢分享！
2016-07-24 10:06
回复
五星好评 顶一下，感谢分享！
muxinjin5楼
2016-07-24 12:49
回复
五星好评 顶一下，感谢分享！
hunantao6楼
2016-07-24 13:50
回复
五星好评 顶一下，感谢分享！
tnntc7楼
2016-07-24 19:31
回复
五星好评 顶一下，感谢分享！
zjjxl9楼
2016-07-25 06:14
回复
五星好评 顶一下，感谢分享！
lhw796210楼
2016-07-25 07:29
回复
五星好评 顶一下，感谢分享！
yuanling80811楼
2016-07-25 08:27
回复
五星好评 顶一下，感谢分享！
lizhiwei112楼
2016-07-25 10:45
回复
五星好评 顶一下，感谢分享！
zerglsc13楼
2016-07-25 19:36
回复
五星好评 顶一下，感谢分享！
27499098014楼
2016-07-25 23:14
回复
五星好评 顶一下，感谢分享！