Fig. 5. (a) TEM image of 1-NP in an aqueous solution of 1 M NaCl. (b) Plot of catalytic current density vs. the silver(I) concentrations of 1–3-NP (0.1 M NaCl, 0.1 M HNO3). (c) CVs of a GC electrode in an aqueous solution of NaCl (1 M) and HNO3 (pH ∼ 1, 0.1 M) without (black) and with (red) 1-NP (c Ag+ = 5.30 μM) and with (blue) AgCl-NP (c Ag+ = 4.89 μM). (d) CVs of a GC electrode in an aqueous solution of NaCl and HNO3 with 1-NP (c Ag+ = 0.53 μM) as a catalyst after degassing (red) or after bubbling oxygen (black). Scan rate: 100 mV s–1.
