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

Table 2

CV data of the catalyst inks in ethanol electrooxidation

In acidic medium C2H5OH 1 M + H2SO4 0.5 M			In alkaline medium C2H5OH 1 M + NaOH 0.5 M
Catalyst ink	IF mA mgPt^−	IB mA mgPt^−1	IF/IB	IF mA mgPt^−1	IB mA mgPt^−1	IF/IB
CI-WATER	1486	1784	0.83	3951	1894	2.09
CI-NBA (1/1)	1257	1478	0.85	3114	1182	2.63
CI-NBA (1/0.5)	857	1310	0.65	721	364	1.98
CI-NBA (1/2)	742	661	1.12	476	220	2.17
CI-IPA (1/1)	1187	2046	0.58	3435	1724	1.99
CI-IPA (1/0.5)	723	1261	0.57	3080	1496	2.06
CI-IPA (1/2)	1133	1693	0.67	2911	1298	2.24
CI-EtOH (1/1)	1793	2553	0.70	4751	2438	1.95
CI-EtOH (1/0.5)	719	1095	0.66	3980	1726	2.31
CI-EtOH (1/2)	987	1532	0.64	2364	1103	2.14