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

Table 1

Physical properties of the solvents.

Solvents	Boiling point (^oC) at 760 mmHg	Dielectric constant	Solubility in water (g) in 100 mL (20°C)	Viscosity/cP (25°C)
n-Butyl acetate	126.1	5.07	0.68	0.685
Isopropanol	82.6	20.18	Miscible	1.96
Ethanol	78.2	25.30	Miscible	1.07
Water	100.2	80.10	—	0.890