24-h atmospheric water harvesting for green hydrogen production using a durable organic aerogel
2026-02-27 CELL REPORTS SUSTAINABILITY 2026 3(卷), 2(期), (null页)
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Green hydrogen production exacerbates water scarcity and further contributes to climate change when using fossil-based electrical energy. In this work, a device with long-term durability combining solar energy was proposed and designed for the sustainable production of water and green hydrogen over 24 h. The water production device was based on a high-heat-resistant and salt-resistant bio-based moisture sorption gel, whose water sorption capacity is 2.03 times that of pure lithium chloride in a simulated desert environment (18 degrees C, 15% relative humidity [RH]). Notably, the prepared aerogel exhibited cumulative water sorption of 2.045 gwater & sdot;gsample-1 and performance fluctuation < 2% after 2,000 h of cyclic testing. Therefore, we used this material in our device to achieve 24 h of continuous water and electrolytic hydrogen production by atmospheric water harvesting. This study introduces a potential solution aimed at providing a new 24-h continuous production method for both water and green hydrogen in arid regions.
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