多功能MXene/PVA水凝作为连续离子热电发电机和应变/温度传感器
Dezhuang Ji1, Baosong Li2,3, Dawei Zhang1
1Department of Mechanical and Nuclear Engineering, Khalifa University of Science and Technology, P.O. Box, Abu Dhabi, 127788, UAE.
Small (Weinheim an der Bergstrasse, Germany)
|November 20, 2024
概括
本研究介绍了一种使用MXene/PVA水凝的连续离子热电 (i-TE) 系统. 这种新型系统提供可调节的热能,并作为应变/温度传感器.
科学领域:
- 材料科学 材料科学 材料科学
- 收集能源 收集能源
- 热电设备 热电设备
背景情况:
- 热电发电机 (TEG) 将热量转化为电力.
- 离子热电 (i-TE) 系统为灵活和低成本的能源采集提供了潜力.
- 开发稳定和连续输出i-TE系统仍然是一个挑战.
研究的目的:
- 开发一个连续输出离子热电 (i-TE) 系统.
- 调查用于i-TE应用的MXene/PVA水凝的使用.
- 探索开发的水凝的多功能传感能力.
主要方法:
- 使用MXene (Ti3C2Tx) /PVA水凝制造一个i-TE系统.
- 使用Cu2+和Cl-离子的热扩散和Cu/Cu2+氧化还原反应.
- 热功率,响应时间和长期稳定的表征.
- 评估应变和温度传感能力.
主要成果:
- 通过使用MXene调整离子扩散率,达到高达-3.13mVK-1的可调节热功率.
- 证明了快速响应时间 (<100秒),超过了多电解质系统.
- 通过氧化还原反应通过铜电极获得连续电流输出.
- 在广泛的电阻范围内 (1kΩ到1MΩ) 确认了长期稳定的输出.
- 展示了用于应变和温度检测的多功能传感器.
结论:
- MXene/PVA水凝i-TE系统为持续的能量收集提供了一个有前途的平台.
- 与现有的基于聚电解质的系统相比,该系统表现出卓越的性能和快速响应.
- 水凝的多功能传感能力为集成可穿戴电子产品开辟了道路.
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