The recorded ATR-IR, as well as XPS spectra confirmed successful deposition of MIP and NIP films on the carbon paper electrodes. IR spectra after polymerization showed broad signal of aromatic C-H stretching (2950-2600 cm -1 ) and set of overlapped signals between 1700 cm -1 and 1300 cm -1 emerged (Figure , Supplementary materials). Also, XPS determined higher content of nitrogen and much lower content of fluorine in comparison to carbon paper electrode proving successful electropolymerization over carbon electrode (Table , Supplementary materials). XPS signal originates only from surface of the material (1-2 nm, in depth). Therefore, drop of fluorine content in XPS spectra suggest that carbon fibers of the carbon paper were coated with other material -MIP in this case.