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Flexible neodymium iron boron/polyvinyl chloride (Nd2Fe14B/PVC) composite film based hybrid nanogenerator for efficient mechanical energy harvesting

Author

Listed:
  • Zhao, Kun
  • Song, Zhenhua
  • Sun, Wanru
  • Gao, Wei
  • Guo, Junhong
  • Zhang, Kewei

Abstract

Triboelectric-electromagnetic hybrid nanogenerator (HNG) exhibits exceptional output performance, rendering it a highly viable solution for powering tiny electronics in the foreseeable future. However, the construction of a simple structure and light weight HNG using magnetizable triboelectric materials is a highly desirable yet challenging task. Herein, we present a HNG based on flexible neodymium iron boron/polyvinyl chloride (Nd2Fe14B/PVC) composite films for efficiently harvesting mechanical energy from the environment. By embedding Nd2Fe14B powder in PVC matrix, the as-prepared Nd2Fe14B/PVC composites possess desirable triboelectricity and magnetic strength, which is advantageous in replacing traditional heavy magnets to construct a lightweight HNG with high performance. Under a force of 3.8 N and a frequency of 2.1 Hz, the triboelectric nanogenerator (TENG) produces an output power of 4.5 mW at a loading resistance of 5 MΩ, while the electromagnetic generator (EMG) generates up to 0.11 mW at a loading resistance of 200 Ω. The HNG exhibits superior stability and better charging performance compared to single energy harvesting units. A commercial 470 μF capacitor can be charged to 3 V within 385 s through the HNG, which can continuously supply electrical energy to a hygrothermograph and vernier scale. This work provides an effective method for preparing magnetizable triboelectric materials and introduces new possibilities for the rational design of simple structure and lightweight HNGs.

Suggested Citation

  • Zhao, Kun & Song, Zhenhua & Sun, Wanru & Gao, Wei & Guo, Junhong & Zhang, Kewei, 2024. "Flexible neodymium iron boron/polyvinyl chloride (Nd2Fe14B/PVC) composite film based hybrid nanogenerator for efficient mechanical energy harvesting," Energy, Elsevier, vol. 300(C).
  • Handle: RePEc:eee:energy:v:300:y:2024:i:c:s0360544224014294
    DOI: 10.1016/j.energy.2024.131656
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    References listed on IDEAS

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