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Poly(m‐phenylenediamine)‐coated 316L SS: A promising material for bipolar plates in PEMFC environment

“…The onset of polymerization was confirmed by running a CV without monomer and the findings were reported elsewhere by the authors. [25] Different peak pattern was observed in the presence of monomer indicating predominant oxidation of monomer and its subsequent polymerization over oxygen evolution. A constant oxidation current was observed in successive cycles indicating the formation of a conducting polymer on the electrode surface.…”

“…The WE potential was cycled from 0.4 to 1.4 V SCE at a scan rate of 0.05 V/s for 20 cycles. Sodium malonate was used as the supporting electrolyte [25] and its concentration was fixed at 0.15 M. The mPD monomer concentration was varied at 0.02, 0.04, and 0.06 M. All the solutions were prepared using double-distilled water. The electrodes were removed from the cell after the completion of the electropolymerzation process and rinsed with double-distilled water to remove any unreacted monomer molecules before being dried.…”

“…Many conducting polymers have been synthesized and tried for corrosion protection purpose in fuel cells. Poly(o-phenylenediamine), [16][17][18][19][20] polyaniline, [21][22][23] polypyrrole, [24] poly (p-phenylenediamine) [25] have already been investigated on stainless steel and aluminum alloys. Since poly(mphenylenediamine) (PmPD) is also a conducting polymer, [26] its applicability in providing corrosion protection to 316L SS has been investigated in this study.…”