Hydrothermal method for the synthesis of hematite (α‐Fe2O3) has been done at 120 °C. Morphological study reveals the formation of spherical nanoparticles of average size ∼10 nm. The prepared electrode (Fe2O3 dropcosted over graphite sheet) used as a working electrode for the oxygen evolution reaction in 1 M KOH. The linear sweep voltammetry confirms that the as‐prepared electrode requires 340 mV potential to reach a current density of 1 mA/cm2 and 510 mV potential for 10 mA/cm2. Further, the kinetics of electrocatalyst has been investigated using Tafel slope, mass activity and Turn over frequency.
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Rana et al. (2020) studied this question.
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