Novel hybrid multifunctional magnetoelectric porous composite films

Abstract Novel multifunctional porous films have been developed by the integration of magnetic CoFe 2 O 4 (CFO) nanoparticles into poly(vinylidene fluoride)-Trifuoroethylene (P(VDF-TrFE)), taking advantage of the synergies of the magnetostrictive filler and the piezoelectric polymer. The porous films show a piezoelectric response with an effective d 33 coefficient of −22 pC/N −1 , a maximum magnetization of 12 emu g −1 and a maximum magnetoelectric coefficient of 9 mV cm −1  Oe −1 . In this way, a multifunctional membrane has been developed suitable for advanced applications ranging from biomedical to water treatment.