Volume 10 Issue 12
Dec.  2025
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Article Navigation >  Green Energy&Environment  > 2025  >  10(12): 2453-2460
Rongrong Wang, Junfeng Lu, Wenjia Guo, Hao Dong, Nailiang Yang, Hua Li, Yanlei Wang, Jianmei Lu. High-performance moisture-driven power generators based on in-situ confined polymerized ionic liquid membranes. Green Energy&Environment, 2025, 10(12): 2453-2460. doi: 10.1016/j.gee.2025.05.004
Citation: Rongrong Wang, Junfeng Lu, Wenjia Guo, Hao Dong, Nailiang Yang, Hua Li, Yanlei Wang, Jianmei Lu. High-performance moisture-driven power generators based on in-situ confined polymerized ionic liquid membranes. Green Energy&Environment, 2025, 10(12): 2453-2460. doi: 10.1016/j.gee.2025.05.004
shu

High-performance moisture-driven power generators based on in-situ confined polymerized ionic liquid membranes

doi: 10.1016/j.gee.2025.05.004

  • a. College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, National United Engineering Laboratory of Functionalized Environmental Adsorption Materials, Soochow University, Suzhou, Jiangsu, 215123, China;

  • b. Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China;

  • c. Department of Chemistry, School of Chemistry and Life Resources, Renmin University of China, Beijing, 100872, China;

  • d. Longzihu New Energy Laboratory, Zhengzhou Institute of Emerging Industrial Technology, Henan University, Zhengzhou, 450000, China

Funds:

We are thankful to the National Natural Science Foundation of China (22278401 and 92163209), the ANSO Collaborative Research Program (ANSO-CR-KP-2022-12), Beijing Natural Science Foundation (2252011 and JQ22004), Beijing Nova Program (20230484478) for financial support. This research was supported by Public Computing Cloud, Renmin University of China. The authors also sincerely appreciate Prof. Suojiang Zhang and Prof. Hongyan He (IPE, CAS) for their careful academic guidance and great support.

  • Received date 24 April 2025, Accepted date 11 May 2025, RevRecd date 07 May 2025, Publish date 13 May 2025,
    Abstract
  • Harvesting energy from humid air to generate electricity represents a promising strategy for sustainable power generation. However, achieving high output and long-term stability in moisture-driven power generators (MPGs) remains a significant challenge. Here, we develop an efficient MPG by incorporating polymerized ionic liquid (PIL) and MXene through in-situ polymerization of cationic long chains within the MXene layers. This structural design enhances the hydrophilicity and ion dynamics, ensuring stable and sustained electrical output. A single MPG device delivers an open-circuit voltage of 0.65 V and a power density of 14.87 μW·cm−2, operating continuously for over 36 h. Surface characterization and quantum chemistry calculations elucidate that the mobile anions within the MPG move directionally under moisture gradients, while polymerized cations remain stationary, driving power generation. The MPG exhibits exceptional long-term stability, retaining about 80% of its initial voltage output after 30 days. Moreover, these MPGs demonstrate scalability for practical applications, capable of efficiently charging capacitors and powering LEDs through simple series-parallel configurations. This work offers a promising strategy to simultaneously enhance the performance and operational stability of MPGs, offering a sustainable solution for the direct conversion of low-grade thermal energy from moisture into clean electricity.

     

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