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Table 1 Summary of crystallite sizes, lattice constant, bandgap, and magnetization of pure CeO 2 nanospheres

From: Synthesis, characterization, and magnetic properties of monodisperse CeO2 nanospheres prepared by PVP-assisted hydrothermal method

Sample Crystallite size from XRD (nm) Lattice constant a(nm) E g (eV) Crystallite size from Raman spectroscopy (nm) Msat 10 kOe (emu/g)
Before Ar annealing After Ar annealing
CeO2 at 160 °C for 12 h 9.43 ± 0.41 0.5430 ± 0.0021 3.00 7.39 - -
CeO2 at 200 °C for 12 h 19.6 ± 0.53 0.5420 ± 0.0003 3.04 8.21 0.0026 0.011
CeO2 at 160 °C for 24 h 12.2 ± 0.13 0.5430 ± 0.0003 3.06 9.23 0.0053 0.0026
CeO2 at 200 °C for 24 h 15.6 ± 0.20 0.5428 ± 0.0006 3.10 12.28 0.016 0.015
  1. E g , bandgap energy; Ms, saturation magnetization. Data of magnetization of pure CeO2 nanospheres is before and after Ar annealing.