Table 2

Gaussian fitting for percentage of Ce3+of pure CeO2nanospheres before and after Ar annealing
Sample Peak position (eV) Peak area (eV) Percentage of Ce3+(%)
Before Ar annealing After Ar annealing Before Ar annealing After Ar annealing Before Ar annealing After Ar annealing
CeO2 at 200 °C for 12 h 5737.881 5738.471 5.128 5.672 7.8 12.4
5730.733 5731.222 3.791 3.603
5724.617 5725.931 0.761 1.308
CeO2 at 160 °C for 24 h 5737.245 5738.888 6.734 4.703 9.8 10.4
5729.911 5731.695 3.549 3.427
5726.128 5726.769 1.013 0.949
CeO2 at 200 °C for 24 h 5738.440 5736.924 5.154 5.713 13.7 13.3
5731.205 5729.691 3.799 3.741
5726.465 5724.987 1.427 1.445

Phokha et al.

Phokha et al. Nanoscale Research Letters 2012 7:425   doi:10.1186/1556-276X-7-425

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