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硫兴奋剂诱导的MnO的晶格扩张,用于增强水性离子扩散和储存

Zixiang Cui¹, Luwei Shi¹, Yan Lin²

¹School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China. ruguangma@usts.edu.cn.

Chemical communications (Cambridge, England)

|October 24, 2024

概括

阳离子兴奋剂增强了氧化 (MnO) 以改善离子 (Zn²⁺) 的储存. 修改后的MnOS_0.3@rGO表现出色的性能,为下一代电池提供高容量和稳定的循环.

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
储能储能储能储能储能储能

背景情况:

开发高性能阴极材料对于推进离子 (Zn2+) 电池至关重要.
氧化 (MnO) 是一个有前途的候选人,因为它的低成本和环保.
改善Zn2+的扩散动力学和MnO的储存能力仍然是一个关键的挑战.

研究的目的:

通过晶格工程来增强MnO的Zn2+储存能力.
调查阴离子兴奋剂对Zn2+扩散障碍和动力学的影响.
为了评估优化MnO基材料的电化学性能,用于Zn2+电池.

主要方法:

通过阳离子兴奋剂对MnO进行格子工程.
MnOS_0.3@rGO复合材料的合成.
电化学测试,包括速度能力和循环稳定性测量.

主要成果:

阳离子兴奋剂有效降低了MnO中的Zn2+扩散屏障.
优化的MnOS_0.3@rGO复合材料展示了优越的速度能力.
在350个循环中,在0.5 A g-1下,获得了115.1 mA h g-1的可逆容量.

结论:

通过阳离子兴奋剂进行格子工程是一种可行的策略,可以在Zn2+存储中提高MnO性能.
MnOS_0.3@rGO复合材料对储能应用具有出色的电化学性能.
这项工作为设计高效Zn2+电池的先进阴极材料提供了洞察力.

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