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(A) Cyclic voltammograms of a Pd-Ni NW electrode in a 0.1 M KOH (black line) with additions of ethanol up to 3.0 × 10−2 M. (B) Calibration curve of the Pd-Ni NW sensor as a dependence of the anodic current on the concentration of ethanol at −0.25 V in 0.1 M KOH.
