高强度和高性超分子材料用于自愈的三电纳米发电机
Ning Yu1, Bingxu Cheng1, Yang Liu1
1School of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, China.
Small (Weinheim an der Bergstrasse, Germany)
|August 21, 2024
概括
研究人员开发了先进的自我愈合的 triboelectric 纳米发电机 (TENGs),具有增强的机械强度和性. 这些材料在损坏后表现出显著的电力输出回收,为持久,可伸缩的发电铺平了道路.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术 纳米技术
- 收集能源 收集能源
背景情况:
- 自愈材料为先进的 triboelectric 纳米发电机 (TENG) 提供了潜在的潜力.
- 现有的自我修复的TENGs具有较低的机械强度和性,限制了它们在压力下的应用.
- 这就需要开发强大的自我修复材料,以获得可靠的TENG性能.
研究的目的:
- 开发一种具有改进的机械性能和自我愈合效率的新型自愈 triboelectric 材料.
- 在TENG应用中研究材料组成和性能之间的相关性.
- 为了证明开发的材料对于耐用和可拉伸的能量收集设备的潜力.
主要方法:
- 使用包含和金属协调键的交叉连接网络制造自愈 triboelectric 材料.
- 通过调整金属与带的摩尔比率来调整材料的性能.
- 机械性能 (抗拉强度,性,破裂时延长) 和自愈效率的表征.
- 在接触分离模式下评估TENG设备的电输出 (电压,电流,电荷,功率密度) 和稳定性.
主要成果:
- 该材料实现了高拉伸强度 (13.7 MPa),性 (76.9 MJ m-3),以及破裂时的延伸 (1321%) 在1:2的金属与合金比率下.
- 观察到高自愈效率 (74%在70°C6小时内).
- 格显示显著的电力输出 (164V,18.2μA,57.5nC,2.54Wm−2) 在剪切后完全恢复.
- 在超过10,000个循环的过程中,证实了出色的输出稳定性.
结论:
- 成功开发了一种制造高性能自愈 triboelectric 材料的新策略.
- 该材料表现出卓越的机械强度和自我修复能力,解决了以前材料的局限性.
- 开发的TENG在可伸缩电子应用中显示出可靠和持久的能源采集的前景.
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