Figure 4.
Comparison of the CVs of (a) untreated MWCNTs, (b) H2/MWCNTs, (c) NH3/MWCNTs and (d) O2/MWCNTs in 0.01 M [Fe(CN)6]3−/4− at different scan rates in the range of 10–100 mVs−1.
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