Amperometric Formaldehyde Sensor Based on a Pd Nanocrystal Modified C/Co₂P Electrode

Figure 7

(a) CVs of the different electrodes in 0.5 M H₂SO₄ solution containing 50 mM formaldehyde from 0.2 V to 0.9 V at 50 mV/s. (b) CVs of the C/Co₂P/Pd/GCE in 0.5 M H₂SO₄ solution with different concentration of formaldehyde from 0.2 V to 0.9 V at scan rate of 50 mV/s.

(a)

(b)