Wave-driven Friction Nanogenerator Based on PDMS/Fe3O4 Composite Nanomaterials
DOI:
https://doi.org/10.54097/5y61yh20Keywords:
Wave energy, friction nanogenerator, PDMS/Fe3O4, overlapping cubic structure.Abstract
Wave energy is a widely available renewable energy source with a lot of potential for self-powered sensing applications. However, wave energy density is low, and most wave sources in the natural environment are low- to medium-frequency wave sources. In order to improve the collection efficiency of wave energy in low and medium frequency bands, a wave-driven overlapping cube friction nanogenerator (OC-TENG) based on polydimethylsiloxane/ triiron tetroxide (PDMS/Fe3O4) composite nanofilm materials is designed. PDMS/Fe3O4 composite nanomaterials as the negative friction layer, polyamide 11 (PA11) as the positive friction layer, and copper foil (Cu) as the electrode, combined with the overlapping cube structure. With varying wave frequencies, the OC-TENG can produce peak voltages between 57.35 and 86.32 volts as well as short-circuit currents between 4.61 and 9.83 μA, significant improvement over pure PDMS-based TENG at the same wave frequency. Due to its extremely effective wave-to-electricity conversion properties in the low and medium frequency ranges, the OC-TENG might be used as a low-power device power source.
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