Novel electrocatalysts based on ruthenium are ideal for the oxygen evolution reaction (OER) in extremely corrosive acidic environments. However, it is challenging to simultaneously increase the activity and stability of Ru-based OER catalysts. Herein, porous RuCuO_x nanosheets on carbon paper (RuCuO_x NS) were successfully synthesized through precise morphology modulation. The catalyst exhibits overpotential of 175 mV at a current density of 10 mA cm⁻² and is more stable than the commercial RuO₂. Based on experimental results, it seems that the doping of Cu atoms in RuO₂ lattice induces the lattice distortion of RuO₂ and constructs a Ru–O–Cu structure. Above structure could not only enhance the electron cloud density of Ru, facilitating the enhanced activity, but also reducing the adsorption toxicity of oxygen intermediates, which increases the active sites of catalysts. These discoveries might advance knowledge and the creation of more durable active Ru-based OER catalysts.

基于钌的新型电催化剂非常适合在腐蚀性极强的酸性环境中进行析氧反应 (OER)。然而，同时提高 Ru 基 OER 催化剂的活性和稳定性具有挑战性。在此，通过精确的形态调制成功地合成了碳纸上的多孔RuCuO _{x纳米片 (RuCuO x} NS)。^{该催化剂在10 mA cm -2}的电流密度下表现出175 mV的过电势并且比商业RuO ₂更稳定。根据实验结果，似乎Cu原子在RuO _{2晶格中的掺杂引起了RuO 2}的晶格畸变并构建了 Ru-O-Cu 结构。上述结构不仅可以提高Ru的电子云密度，有利于提高活性，还可以降低氧中间体的吸附毒性，从而增加催化剂的活性位点。这些发现可能会增进知识并创造更耐用的活性 Ru 基 OER 催化剂。