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Greener Solvent-Based Processing of Magnetoelectric Nanocomposites
A C Lima1,2, N Pereira1, C Ribeiro1,3
1Physics Centre of Minho and Porto Universities (CF-UM-UP), Universidade do Minho, 4710-057 Braga, Portugal.
ACS Sustainable Chemistry & Engineering
|December 27, 2022
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.
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.
