Hydrogen production from the air | ResearchBunny

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Abstract

This paper demonstrates a method for direct hydrogen production from ambient air using direct air electrolysis (DAE). The DAE module captures atmospheric water vapor using a hygroscopic electrolyte and then performs electrolysis powered by renewable energy sources like solar or wind, achieving a current density up to 574 mA cm⁻². A prototype ran stably for 12 days with ~95% Faradaic efficiency, even at 4% relative humidity. This technology addresses water scarcity issues in hydrogen production, offering a sustainable solution for remote and arid regions.

Publisher

Nature Communications

Published On

Sep 06, 2022

Authors

Jining Guo, Yuecheng Zhang, Ali Zavabeti, Kaifei Chen, Yalu Guo, Guoping Hu, Xiaolei Fan, Gang Kevin Li

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