Magnetoelectropolymerization effects on hydrogen evolution from a polypyrrole electrode

The electrode reaction behavior of hydrogen evolution is reported for p-toluenesulfonate-doped polypyrrole electrodes, which are electropolymerized with and without a magnetic field. The magnetic fields parallel to the faradaic currents during the electropolymerization considerably decrease the electrode activity for the proton reduction, while the magnetic fields perpendicular to the currents have little influence. The correlation between the molecular orientation of polypyrrole and the electrode activity is discussed.