Influence of Solvents on the Electroactivity of PtAl/rGO Catalyst Inks and Anode in Direct Ethanol Fuel Cell

Figure 14

CV curves of (a), (b) CI-NBA, (c), (d) CI-IPA, and (e), (f) CI-EtOH catalyst inks in ethanol electrooxidation in acidic and alkaline medium. Acidic media: C₂H₅OH 1 M + H₂SO₄ 0.5 M. Alkaline media: C₂H₅OH 1 M + NaOH 0.5 M. Scan rate of 50 mV s⁻¹, ambient temperature.

(a)

(b)

(c)

(d)

(e)

(f)