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XRD patterns of the PVP-coated nanoparticles synthesized from EG at temperature of (EG180), and TREG at temperature of (TREG200) and (TREG220).
(a) TEM image of PVP-coated nanoparticles and size distribution of nanoparticles. (b) FESEM micrograph of nanofiber films and diameter distribution of nanofibers.
(a) TEM image of a composite nanofiber. (b) the magnified image of a spot in the fiber.
(a) Hysteresis loop of PVP-coated nanoparticles measured at 300 K. Upper inset: vs curve in high magnetic fields. Lower inset: vs in low magnetic fields. (b) Hysteresis loop of nanofiber film.
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