Biomass Based Moisture-Triggered Hybrid Actuator and Electric Generator with Self-Powered Motion Tracking Capability
Constructing moisture-triggered devices with actuation, power generation, and motion tracking capability simultaneously utilizing solution-processable biomass materials is intriguing while remaining a great challenge. Herein, we designed and integrated a device for synchronized actuation and energy output under moisture stimulation, which was constructed with Zn-C electrodes, a biomass film, and a PET film. The biomass membrane with hygroscopicity and ion transport was fabricated using the long-term stable microgel (CKM-GO) composed of cellulose, keratin, and graphene oxide (GO). The integrated device possessed both the fascinating actuation parameters (bending angle of 117°, response time of 3.5 s, curvature of 0.51 cm<sup>-1</sup>) and energy output (output voltage of 1.2 V and current of 2.2 μA) at 80% RH. Furthermore, the assembled arms grasped-released an object under moisture stimulation, meanwhile the self-powered generated voltage signal tracked the operation process. The device with multiple moisture-responsive functions provides promising platforms for self-powered motion tracking, intelligent robotics, and energy production.
Authors
- Xiaohong Qin (ORCID: https://orcid.org/0000-0003-4663-903X)
- Yijun Yao (ORCID: https://orcid.org/0000-0001-7583-4788)
- Tao Hu (ORCID: https://orcid.org/0000-0002-6242-4269)
- Zixiu Li
- Hongnan Zhang (ORCID: https://orcid.org/0000-0001-5826-0989)
- Liming Wang (ORCID: https://orcid.org/0000-0002-6958-3131)
- Yue Zhang (ORCID: https://orcid.org/0000-0003-1429-724X)
- Mingyuan Liu (ORCID: https://orcid.org/0000-0002-1952-1012)
- Zhen Li (ORCID: https://orcid.org/0000-0002-9289-6785)
- Xinyang He
- Yansong Liu (ORCID: https://orcid.org/0000-0003-1858-5468)
Institutions
- Ministry of Education Science and Technology (MW)
- Donghua University (CN)
- Xi'an Polytechnic University (CN)
- Division of Materials Science and Engineering (AU)
- Bohai University (CN)
Publication Details
- Journal
- Nano Letters
- Published
- 2025-05-27
- DOI
- https://doi.org/10.1021/acs.nanolett.5c01624
- Citations
- 3
- Primary Topic
- Innovative Energy Harvesting Technologies
- Type
- article
- Field-Weighted Citation Impact
- 2.14
Funders
- National Natural Science Foundation of China
- Donghua University
- Fundamental Research Funds for the Central Universities