在现场建造和限制的微孔碳,使有效的Na+储存能力成为可能
Wan-Ling Liao1, Mohamed M Abdelaal1,2, Rene-Mary Amirtha1
1Battery Research Center of Green Energy, Ming Chi University of Technology, 84 Gungjuan Rd., New Taipei City 24301, Taiwan.
International journal of molecular sciences
|May 27, 2023
概括
被和限制的微孔碳 (N,Z-MPC) 在离子 (Na+) 储存方面表现出色. 这种先进的阳极材料为下一代电池提供了高容量,速率能力和显著的循环性.
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:
- 添加的多孔碳材料是储存离子 (Na+) 的有希望的阳极,由于增强了吸附点和电解质可访问性.
- 开发先进的阳极材料对于提高离子电池的性能至关重要.
研究的目的:
- 为了合成和表征添加剂和限制的微孔碳 (N,Z-MPC) 作为Na+存储应用的阳极材料.
- 评估合成的N,Z-MPC的电化学性能,包括容量,速率能力和循环能力.
主要方法:
- N,Z-MPC粉末是通过在气氛下热烧解多面体ZIF-8纳米粒子来制备的.
- 进行了电化学测量,以评估N,Z-MPC作为阳极材料的性能.
主要成果:
- 在N,Z-MPC表现出一个良好的可逆容量423mAh/g在0.02A/g和104mAh/g的速度能力在1.0A/g.
- 实现了显著的循环性,在3000个循环后以1.0 A/g的速度保持96.6%的容量.
- 该材料的特性,包括结构无序,特定的平面间距离,sp2碳含量,微孔性,兴奋剂和性 Zn 物种,有助于提高其性能.
结论:
- N,Z-MPC表现出卓越的Na+储存能力,使其成为先进阳极材料的潜在候选者.
- 兴奋剂,限制和多孔结构的协同效应是优越电化学性能的关键.
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