动态电子和离子运输由添加的MoSe2 /rGO驱动,用于高级离子电池
Song Tao1, Xinyue Zhang1, Zhaoyang Gao1
1College of Materials Science and Engineering, Nanjing Tech University, Nanjing, 211816, P. R. China.
Small (Weinheim an der Bergstrasse, Germany)
|July 31, 2023
概括
在减少的石墨烯氧化物上对二化物纳米片的诱导工程增强了导电性和离子扩散,从而提高了离子电池和电容器的性能.
科学领域:
- 材料科学 材料科学 材料科学
- 电化学 电化学 电化学
- 纳米技术纳米技术
背景情况:
- 二化 (MoSe2) 由于其特性,对离子电池 (PIB) 显示出希望.
- 然而,MoSe2的导电性差,离子动力学缓慢,限制了其应用.
研究的目的:
- 为了提高MoSe2的电化学性能,用于储存.
- 通过使用 (Co) 兴奋剂来研究性能改善背后的机制.
主要方法:
- 在减少的氧化石墨烯 (Co-MoSe2/rGO) 上固定的MoSe2纳米板的协同诱导工程.
- 系统性性能测量,动态分析,in-situ/ex-situ技术,以及密度函数理论 (DFT) 的计算.
主要成果:
- Co-MoSe2/rGO表现出增强的电子导电性和离子扩散动力学.
- 扩大层间间距和Mo-C粘合改善了结构稳定性和接口合.
- 在PIB中表现出显著的可逆容量,速率能力和长期循环能力,在离子电容器中表现出高能量/功率密度.
结论:
- 兴奋剂有效地优化MoSe2用于先进的离子能量存储.
- 该研究提供了对电极材料设计的原子层次见解,以提高电化学性能.
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