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. 2016 Jan 6;6:18978. doi: 10.1038/srep18978

Table 2. Redox potentials and D-values of pristine, Co/SnO2 and Co-N/SnO2.

Cycle number Redox potential/V
 D-Value/Va
Pristine Co/SnO2 Co-N/SnO2 Pristine Co/SnO2 Co-N/SnO2
1st 0.52/0.19 0.53/0.18 0.51/0.21 0.33 0.35 0.30
2nd 0.52/0.18 0.52/0.18 0.48/0.22 0.34 0.34 0.26
4th 0.50/0.17 0.51/0.19 0.47/0.23 0.33 0.32 0.24

aD-value: difference between redox pairs.