Fig. 2: Electrocatalytic UOR performance for Ni-SOX and NiOX.
From: Boosting urea electrooxidation on oxyanion-engineered nickel sites via inhibited water oxidation
a ECSA-normalized LSV curves in 1 M KOH solution with (solid line), or without (dash line) 0.33 M urea. b Comparison of current density on Ni-SOX with reported powder catalysts under a 1.50 − 1.65 V potential zone for UOR. c In situ evaluation of O2 on Ni-SOX and NiOX using RRDE in 1 M KOH with 0.33 M urea. d Multi-step chronopotentiometric test at different potentials from 1.30 to 1.70 V. e Long-term chronopotentiometric stability determined at current density 50 mA cm −2. f Comparison of Ni3+ reduction peaks for Ni-SOX and NiOX in 1 M KOH with (solid line) or without (dash line) 0.33 M urea.
