Table 3 Position lifetime parameters of CeO2 nanocubes calcined at different temperatures.

From: Oxygen vacancy clusters essential for the catalytic activity of CeO2 nanocubes for o-xylene oxidation

Sample (°C)a

τ1 (ps)

τ2 (ps)

τ3 (ns)

I1 (%)

I2 (%)

I3 (%)

τav (ps)b

350

181 ± 3.2

340 ± 3.1

2.79 ± 0.10

41.51 ± 0.81

57.09 ± 0.80

1.39 ± 0.04

308 ± 8.6

450

190 ± 1.8

420 ± 0.7

3.00 ± 0.06

43.84 ± 0.28

54.91 ± 0.28

1.25 ± 0.02

351 ± 4.2

550

183 ± 4.2

414 ± 2.9

2.53 ± 0.05

36.72 ± 0.88

61.82 ± 0.87

1.46 ± 0.04

360 ± 10.4

650

189 ± 3.1

434 ± 3.9

2.50 ± 0.07

43.71 ± 0.84

54.76 ± 0.83

1.53 ± 0.05

359 ± 11.1

  1. aCalcination temperature;
  2. bτav = τ1 I1 + τ2 I2 + τ3 I3.
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