Film star: Co-based films on various nonconductive substrates are fabricated by physical vapor deposition. Subsequent surface electrochemical modification makes these films highly active and robust for water oxidation, reaching 10 mA cm⁻² in current density at a low overpotential of 330 mV in 1.0 m KOH solution. This efficient, safe and convenient way to prepare catalyst films for electrocatalytic studies is valuable and universal, regardless of the substrate.

中文翻译：

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在各种非导电性基底上通过物理气相沉积法制备钴基电极，用于电催化水氧化

薄膜星：通过物理气相沉积在各种不导电基材上制作Co基薄膜。随后的表面电化学改性使这些膜对水氧化具有高活性和坚固性，在1.0 m KOH溶液中的低过电势为330 mV时，电流密度 达到10 mA cm ^-2。不论基材如何，这种用于电催化研究的制备催化剂膜的有效，安全和便捷的方法都是有价值且普遍的。