Table 1 Parameters of local structure around Co atoms obtained from curve-fitting the Co K-edge EXAFS.

From: Formation of Co–O bonds and reversal of thermal annealing effects induced by X-ray irradiation in (Y, Co)-codoped CeO2 nanocrystals

Sample

Bond

N

R

σ2

ΔE0

R-factor

(Å)

(10−3 Å2)

(eV)

(%)

As-grown

Co–O

6.0 ± 0.3

2.07 ± 0.01

10.6 ± 0.7

1.8 ± 0.7

0.0012

Before X-ray

Co–O

4.0 ± 0.4

1.87 ± 0.01

13.1 ± 1.2

− 8.2 ± 1.6

0.0323

Co–Ce

1.4 ± 0.3

3.21 ± 0.01

9.8 ± 1.9

− 7.0 ± 2.0

After X-ray

Co–O

5.4 ± 0.1

2.04 ± 0.01

9.8 ± 0.3

0.0 ± 0.4

0.0007

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