Table 2 Operando EXAFS fitting parameters for the CuOx at −0.75 V under CO2RR using conventional chronoamperometry.

From: Operando time-resolved X-ray absorption spectroscopy reveals the chemical nature enabling highly selective CO2 reduction

 

Cu–CuCu2O

Cu–CuCu

Time (s)

C.N.

R (Å)

C.N.

R (Å)

60

6.9 (9)

2.88 (4)

5.9 (9)

2.43 (4)

120

5.9 (7)

2.98 (3)

6.5 (5)

2.43 (2)

180

5.1 (7)

2.92 (3)

6.9 (7)

2.47 (3)

240

5.0 (5)

2.95 (2)

7.0 (7)

2.49 (2)

300

4.8 (6)

2.91 (3)

7.0 (6)

2.41 (2)

360

3.5 (4)

2.90 (2)

8.1 (7)

2.42 (2)

420

3.5 (4)

2.93 (3)

8.0 (7)

2.45 (2)

480

3.1 (4)

2.91 (3)

8.2 (9)

2.44 (3)

540

3.4 (3)

2.96 (2)

8.8 (8)

2.46 (2)

600

3.5 (4)

2.89 (3)

8.5 (9)

2.46 (3)

  1. Uncertainties in the last digit are given in parentheses.
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