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Greener Solvent-Based Processing of Magnetoelectric Nanocomposites.

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ACS Sustainable Chemistry & Engineering
|December 27, 2022
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Summary

This study developed sustainable magnetoelectric (ME) nanocomposites using poly(vinylidene fluoride-trifluoroethylene) (PVDF-TrFE) and environmentally friendly solvents. The new method offers a greener alternative for producing advanced ME sensors.

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Polymer Science

Background:

  • Polymer-based magnetoelectric (ME) nanocomposites are crucial for digitalization.
  • Poly(vinylidene fluoride-trifluoroethylene) (PVDF-TrFE) is the preferred piezoelectric matrix.
  • Traditional processing uses toxic N,N-dimethylformamide (DMF).

Purpose of the Study:

  • To develop environmentally friendlier methods for preparing PVDF-TrFE/Co2Fe2O4 ME nanocomposites.
  • To explore alternative, sustainable solvents for nanocomposite fabrication.
  • To assess the performance of ME nanocomposites prepared using green solvents.

Main Methods:

  • Preparation of PVDF-TrFE/Co2Fe2O4 nanocomposites using dimethyl sulfoxide (DMSO), N,N'-dimethylpropyleneurea (DMPU), and triethyl phosphate (TEP) as solvents.
  • Characterization of the magnetoelectric properties of the prepared composite films.
  • Evaluation of ME voltage coefficient and sensitivity.

Main Results:

  • Successful synthesis of PVDF-TrFE/Co2Fe2O4 nanocomposites using DMSO, DMPU, and TEP.
  • Achieved a maximum ME voltage coefficient of 35 mV cm⁻¹ Oe⁻¹.
  • Demonstrated a maximum sensitivity of 2.2 mV T⁻¹.

Conclusions:

  • Environmentally friendlier solvents can be effectively used for preparing PVDF-TrFE/Co2Fe2O4 ME nanocomposites.
  • The developed sustainable approach is suitable for creating next-generation ME sensors.
  • This work paves the way for greener manufacturing of advanced functional materials.