The paper touts eAEH’s low reversible cell voltage (0.06 V) and energy consumption (0.175 kWh m⁻³), yet all catalysts in Table 1 have onset potentials >0.3 V (vs RHE) and most operate well above 1 V. Why present an idealized thermodynamic advantage that is completely negated by kinetic overpotentials in practice?
Many entries have missing data (-) for key metrics like mass activity, faradaic efficiency, or hydrogen rate. For the Platinum plate entry, the hydrogen production rate is only 0.17 mL h⁻¹ with <60% FE. How can such a low rate be considered relevant to “scaling-up” hydrogen production?