液态气体双相水能采集通过莲花叶灵感的Janus表面采集水能
Zefang Dong1,2, Jiaxin Bai3, Guoxu Liu1,2
1Beijing Key Laboratory of High-Entropy Energy Materials and Devices, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, P. R. China.
Small (Weinheim an der Bergstrasse, Germany)
|February 22, 2026
概括
本研究介绍了一种新型的双相水能收获器,可以同时从液态和气态水相中捕获能量. 这项创新有效地使用雨水和大气湿度为电子设备提供动力,提供可持续的能源解决方案.
科学领域:
- 材料科学 材料科学 材料科学
- 收集能源 收集能源
- 可再生能源可再生能源是可再生能源.
背景情况:
- 现有的水能收获器通常只使用一种水相 (液体或气体),导致水文循环中的能量捕获效率低下.
- 分布式低功耗电子设备需要可持续的电源,特别是在偏远或离网的地点.
研究的目的:
- 开发一种双相水能收获器,同时利用液相和气相水发电.
- 克服单相水能收获器的局限性,提高利用水文循环能源的效率.
主要方法:
- 该设备采用Janus湿策略,灵感来自莲花叶,具有明显的疏水和亲水表面.
- 疏水表面将从水滴中的动能转化为脉冲电.
- 具有离子水凝的爱水表面吸收大气水分,通过离子度梯度和电化学潜力产生连续的电力.
主要成果:
- 双相收割机的最大功率密度为78.91μW cm-2.2.
- 一个36厘米×28厘米的阵列证明了能够产生8.2V的连续电压和5.6mA的电流的能力.
- 在降雨下 (16.5 mm min-1),记录了高达 150 V 的叠加过渡电压脉冲和 0.3 mA 的脉冲电流,足以为路灯和手机等设备供电.
结论:
- 开发的液气双相水能收获器在水能发电方面取得了重大进展.
- 它的可扩展性和产生连续和脉冲电力的能力使其成为在富含水的环境中为离网物联网 (IoT) 设备供电的有希望的解决方案.
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