Year: 2026
Type: article
Abstract: ABSTRACT We report a self‐sustaining system that directly converts atmospheric moisture into green hydrogen, eliminating reliance on intermittent renewables and liquid water sources. The core of the system is a multifunctional hydrogel device that integrates moisture‐enabled electricity generation, atmospheric water harvesting, and electrolysis into a seamless operation. Concerted ion diffusion and active electrode chemistry in the gel yield a stable power output of 1.87 V and 450 μA cm −2 , while its hygroscopic components capture water at 1.318 g g −1 . The harvested water and electricity are used in situ to drive efficient overall water splitting at 1.50 V, catalyzed by a Mo‐FeNi 3 /NiFe 2 O 4 heterostructure catalyst, producing hydrogen at a rate of 2.6 μmol g PPM −1 per cycle. This integrated “moisture‐to‐hydrogen” paradigm offers a scalable, off‐grid solution for continuous and carbon‐neutral hydrogen production.
Source: Carbon Energy
DOI: 10.1002/cey2.70343
Institutions: Beijing Institute of Technology, Tangshan College
Language: English
Subfield: Biomedical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $3,200
OpenAlex ID: W7222298394