请用专业的学术英语和语法润色这段话Traditional Fe-based catalysts play a vital role in many electrocatalytic reactions3334 In our case despite of an acidic AA solution at pH = 23 the 25FeKJ catalyst exhibits an outstan
Traditional Fe-based catalysts play a crucial role in numerous electrocatalytic reactions33,34. In our study, despite utilizing an acidic AA solution with pH = 2.3, the 2.5%Fe@KJ catalyst demonstrates exceptional AA oxidation performance, resulting in an ultra-low overpotential of 12 mV at a current density of 10 mA/cm2, significantly surpassing the OER performance of the acidic benchmark OER catalyst IrO2. Conversely, when the electrolyte is H2SO4 with the same pH, the current density of the 2.5%Fe@KJ catalyst is almost negligible below 2 V, indicating that the anodic current in the AA solution is a result of AAOR rather than OER (Fig. 3a). Many biomass electrooxidation reactions have been reported for hydrogen production; however, the majority of them have an overpotential of more than 600 mV (Fig. 3b), leading to a large working potential in the anodic half-reaction, even exceeding 1.23 V. It is noteworthy that achieving a current density of 10 mA cm-2 in AAOR only requires an overpotential of 0.492 V. This is primarily attributed to the p-π conjugation effect that enhances the bias of the oxygen electron cloud towards the delocalized bond, making it easier to dissociate the H from the hydroxyl group35, thereby requiring only a low potential to drive AA oxidation.
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