On the Use of Potential Denaturing Agents for Ethanol in Direct Ethanol Fuel Cells

Table 1

Results of the GC/MS analysis of samples containing 1 wt.-% ETBE before and after the electrolysis at 0.7 V versus RHE in acidic and alkaline electrolytes.

Electrolyte	0,5 M H2SO4	0,5 M H2SO4	0,1 M KOH	0,1 M KOH
Electrolysis time	—	1,5 h	—	24 h
Charge	—	4,2 mC	—	110 mC
ETBE mg kg^−1	12512	13	10715	2
Ethanol mg kg^−1	1077	536	517	340
tert-butanol mg kg^−1	1054	239	223	84
Acetaldehyde mg kg^−1	44	21	21	< 1
i-butanol mg kg^−1	16	<1	<1	<1
Methanol mg kg^−1	<1	<1	<1	<1
3-Methyl-1-butanol mg kg^−1	<1	<1	<1	<1
2-Methyl-1-butanol mg kg^−1	<1	<1	<1	<1