The two half-reactions that are used in the direct methanol fuel cell are shown below.
I.2 CH3OH(aq)+ 2 H2O(l)→ 2 CO2(g)+ 12 H+(aq)+ 12 e-
II.3 O2(g)+ 12 H+(aq)+ 12 e- → 6 H2O(l)
The electrode at which half-reaction I occurs is the ________ at which ________ is oxidized,and half-reaction II occurs at the ________ at which ________ is reduced.
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