Dimensionally stable RuO₂ (RO)- and IrO₂-based anodes have been widely used for electrochemical water treatment but alternative materials are required due to their well-recognized drawbacks such as high-cost and low oxygen evolution potential. In an effort to minimize noble metal contents, we herein fabricated electrospun Sb-doped SnO₂ (ATO)/RO composite nanofibers as new anode materials by controlling precursor ratios. These composite nanofiber anodes have one-dimensional nanostructure assembled with highly uniform ATO and RO nanoparticles and their oxygen evolution potential was successfully tailored by compositional change. The ATO/RO nanofiber anodes, even with a small amount of RO of 3% exhibited superior electrocatalytic performance in oxidative organic degradation; complete degradation of bisphenol A as a model substrate was achieved during 20 min-electrolysis on ATO/RO anodes at a low current density of 3 mA⋅cm⁻². This strategy provides the optimization of oxygen evolution reaction and current efficiency, resulting in excellent capability for electrochemical water treatment.

尺寸稳定的基于RuO ₂（RO）和IrO ₂的阳极已被广泛用于电化学水处理，但由于其公认的缺点（例如高成本和低氧气释放潜力），因此需要替代材料。为了使贵金属含量最小化，我们在本文中制造了电纺掺Sb的SnO _2。（ATO）/ RO复合纳米纤维作为新的阳极材料，可通过控制前体比率来实现。这些复合纳米纤维阳极具有一维纳米结构，由高度均匀的ATO和RO纳米颗粒组装而成，并且通过成分变化成功地调节了它们的析氧潜能。即使少量的RO为3％，ATO / RO纳米纤维阳极在氧化有机降解方面也表现出优异的电催化性能。在3 mA·cm ^-2的低电流密度下，在ATO / RO阳极上电解20分钟时，双酚A完全降解为模型底物。该策略可优化氧气释放反应和电流效率，从而具有出色的电化学水处理能力。