地球表面水覆盖约75%，水循环过程蕴含巨大能量。课题组在国际上首先提出了空气中水汽发电的新概念（Moisture enabled electricity generation, or Most-electric generation, MEG）。

石墨烯、高分子等通过有效的表面官能团调控，能够自发吸收空气中气态水分直接产生电能，也称“空气发电”。通过分子设计、化学改性、表面修饰、微纳加工等策略，开发了一系列高性能水汽发电新材料。借助激光加工、丝网印刷与3D打印技术实现高效水汽发电器件的制备与大规模集成，在大气环境中能够产生几百毫伏到几十伏的电压。进一步探索湿气发电技术在传感器、物联网、柔性电子、非接触式人机交互等领域的应用。同时，也发展了一系列液态水高效发电材料和器件（Water-enabled electricity generation, WEG）。

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