Charge transfer and ion occupation induced ultra-durable and all-weather energy generation from ambient air for over 200 days

Jian LU, Bingang XU, Junxian HUANG, Xinlong LIU, Hong FU

Research output: Contribution to journalArticlespeer-review

Abstract

The notion of spontaneous and persistent energy generation from omnipresent atmospheric moisture presents an alluring prospect in the realm of next-generation energy sources. Here, an ultra-durable and all-weather energy generator (UAEG) predicated on interface-induced proton migration derived from enhanced proton dissociation by charge transfer and ion occupation is reported, which reduces the diffusion barrier of protons in chromatogram-like mass transfer by avoiding the rebinding of dissociated protons with charged polyelectrolyte chains, thus leading to efficient and continuous proton migration through heterogeneously hygroscopic interface and delivering ultra-durable direct-current output. Deep insight into underlying mechanisms is demonstrated by theoretical calculations and in situ investigations toward molecular interactions and charge distribution. A UAEG unit with 4 cm2 in size can generate an impressive electric output (0.88 V and 37.58 µA) across extensive relative humidity (10–90%) and ambient temperature (−30–50 ˚C), capable of generating energy in all-weather conditions (e.g., sunny, cloudy, overcast, and rainy) regardless of day and night. Importantly, it is the first time that a commercial electronic is continuously driven for over 200 days in all-weather conditions just depending on ambient moisture. This work provides a novel perspective for the development of ultra-durable and all-weather moisture-enabled energy generators. Copyright © 2024 Wiley-VCH GmbH.

Original languageEnglish
JournalAdvanced Functional Materials
Early online dateMay 2024
DOIs
Publication statusE-pub ahead of print - May 2024

Citation

Lu, J., Xu, B., Huang, J., Liu, X., & Fi, H. (2024). Charge transfer and ion occupation induced ultra-durable and all-weather energy generation from ambient air for over 200 days. Advanced Functional Materials. Advance online publication. https://doi.org/10.1002/adfm.202406901