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Table 1 Summary of ionic rectification factor on single-step modified DWCNT-dye membrane

From: Single-step electrochemical functionalization of double-walled carbon nanotube (DWCNT) membranes and the demonstration of ionic rectification

Concentration

Rectification factor

(mM)

Potassium ferricyanide

NDS

Sodium benzenesulfonate

10

7.2 ± 0.3

3.1 ± 0.3

2.4 ± 0.2

50

6.4 ± 1

2.0 ± 0.1

2.0 ± 0.1

100

5.6 ± 1

2.3 ± 0.1

1.7 ± 0.1

  1. Rectification factor was calculated by the ratio of ionic transport current at ±0.6-V bias. Linear scan was from −0.60 to +0.60 V with the scan rate at 50 mV/s.
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