辐射冷却有助于自给自足和高效的水分能量收集
Chenyue Guo1, Huajie Tang1, Pengfei Wang2
1School of Energy and Environment, Southeast University, Nanjing, China.
Nature communications
|July 19, 2024
概括
这项研究介绍了一种新型的双层聚合物,用于从水蒸气中持续发电. 该设备有效地将大气中的水分转化为电能,即使在波动的环境条件下,也提供可持续的电源.
科学领域:
- 材料科学 材料科学 材料科学
- 收集能源 收集能源
- 环境科学 环境科学
背景情况:
- 从水蒸气中获取电力是解决能源危机的一个有希望的解决方案.
- 现有的技术往往无法解释影响电力输出的环境波动.
研究的目的:
- 开发一种自给自足的水电发电机,在自然环境变化中有效运行.
- 研究一种双层聚合物系统,从水文循环中实现稳定,连续的能量转化.
主要方法:
- 一种双层聚合物装置的制造,其顶层是疏水的,底层是含有LiCl.Cl的湿透离子凝底层.
- 利用辐射冷却和增强的水分吸附/离子传输,实现连续的水/离子流.
- 测试设备在环境条件 (25°C,70%RH) 和户外操作下6天的性能.
主要成果:
- 该装置实现了~0.88V的连续电压和每1平方厘米单位的~306μA的电流.
- 在最佳条件下,最大功率密度为~51μW cm−2.
- 发电机连续6天稳定地在户外运行,展示了它的稳定性.
结论:
- 开发的双层聚合物有效地实现了自我维持和高效的水分发电.
- 该设备的设计通过结合环境适应性来解决先前研究的局限性.
- 这项技术为从大气中的水蒸气中持续,可持续地采集能源提供了可行的途径.
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