Controllable synthesis of CoFe₂O₄ electrospun nanofibers

Abstract

Controllable synthesis of CoFe2O4 nanofibers has been realized by controlling the electrospinning process parameters.

Magnetoelectric coupling in CoFe2O4‐Pb(Zr0.2Ti0.8)O3 coaxial nanofibers

“…One may note that the intensity of the diffraction peaks of CFO is much weaker than that of the PZT due to the difference in the crystallization temperature for PZT and CFO. It reported that the CFO phase has a higher crystallization temperature than that of the PZT phase, and a weak CFO diffraction peak was observed in CFO‐PZT NFs 2,17 . The morphology of coaxial NFs annealed at 700°C is shown in Figure 1B.…”

“…It reported that the CFO phase has a higher crystallization temperature than that of the PZT phase, and a weak CFO diffraction peak was observed in CFO-PZT NFs. 2,17 The morphology of coaxial NFs annealed at 700°C is shown in Figure 1B. The NFs show a smooth and bead-free morphology with an average diameter ranging from 150 to 350 nm.…”

Energy harvesting of fully-flexible magnetoelectric composites using a piezoelectric P(VDF-TrFE) and magnetostrictive CoFe2O4 nanofiber

“…1a illustrates the fabrication procedure of the CFO/PI lm, which was utilized as a exible magnetostrictive substrate for 2-2 type laminated ME composite via electrospinning, calcination, and spin-coating process (see details in the Experimental section). Aer electrospinning, annealing under appropriate conditions 36,37 is necessary to remove amorphous PVP from the as-spun nanobers and obtain well-crystalline CFO nanobers. The XRD patterns of the CFO nanobers synthesized aer calcination are shown in Fig.…”

Large room temperature magnetoelectric response in quasi 1–2 nanocomposite films on mica substrate

“…Synthesis details for CFO nanofibers can be found in our previous reports. 3,31 PZT film was deposited on SRO/NFO/mica substrate with CFO nanofibers at 600 • C with an oxygen partial pressure of 15 Pa. After the deposition of PZT, the CFO nanofibers were covered by the PZT film layer, as shown in Figure 1A. Pt electrodes with a diameter of 100 µm were deposited on the surface of these composite films by sputtering.…”

“…CFO nanofibers were received on mica substrates with SrRuO 3 (SRO) electrodes buffered with NiFe 2 O 4 (NFO). Synthesis details for CFO nanofibers can be found in our previous reports 3,31 . PZT film was deposited on SRO/NFO/mica substrate with CFO nanofibers at 600°C with an oxygen partial pressure of 15 Pa. After the deposition of PZT, the CFO nanofibers were covered by the PZT film layer, as shown in Figure 1A.…”