Self‐Sustained Water and Electricity Generation from Ambient Humidity by Using Metal‐Ion Controlled Hygroscopic Hydrogels DOI Open Access

Hong Liu,

Lu Liu, Yujie Du

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 17, 2025

Abstract Unlike traditional water production and electricity generation, direct utilization of atmospheric moisture is a promising way to simultaneously generate power. Here, tailored hygroscopic hydrogel developed through the coupling electron empty orbitals lone pairs, forming [metal−N/O] absorb active sites. The aims capture from ambient humidity transfer gaseous liquid water, storing flowable into hydrogel. process includes two stages, initial small amount chemisorption on sites followed by abundant physisorption hydroxyls. Benefiting surface, uptake Ni 0.92 g −1 at 20 °C 40% RH, while dehydration temperature only 40 °C. Packaging three layers hydrogel, 4 mL h drinking standard produced using 9 when exposed air light. Upon creating moist area carbon paper as electrodes, stable open circuit voltage 533.2 mV generated in self‐sustained manner.

Language: Английский

Self‐Sustained Water and Electricity Generation from Ambient Humidity by Using Metal‐Ion Controlled Hygroscopic Hydrogels DOI Open Access

Hong Liu,

Lu Liu, Yujie Du

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 17, 2025

Abstract Unlike traditional water production and electricity generation, direct utilization of atmospheric moisture is a promising way to simultaneously generate power. Here, tailored hygroscopic hydrogel developed through the coupling electron empty orbitals lone pairs, forming [metal−N/O] absorb active sites. The aims capture from ambient humidity transfer gaseous liquid water, storing flowable into hydrogel. process includes two stages, initial small amount chemisorption on sites followed by abundant physisorption hydroxyls. Benefiting surface, uptake Ni 0.92 g −1 at 20 °C 40% RH, while dehydration temperature only 40 °C. Packaging three layers hydrogel, 4 mL h drinking standard produced using 9 when exposed air light. Upon creating moist area carbon paper as electrodes, stable open circuit voltage 533.2 mV generated in self‐sustained manner.

Language: Английский

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