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.

中文翻译：

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低温水热法合成Fe2O3晶体及其析氧性能

为赤铁矿（α-Fe的合成水热法₂ ö ₃）已在120℃下被完成。形态学研究表明形成了平均粒径约为10 nm的球形纳米颗粒。所制备的电极（在石墨片上的Fe ₂ O ₃成本下降）用作在1 M KOH中进行氧释放反应的工作电极。线性扫描伏安法证实，所准备的电极需要340 mV的电势才能达到1 mA / cm ²的电流密度，而对于10 mA / cm ^2的电势需要510 mV的电势。此外，已经使用Tafel斜率，质量活性和翻转频率研究了电催化剂的动力学。