The present study focused on the preparation, characterization, and application of cerium (Ce) and neodymium (Nd) co-doped lead (PbO₂) electrode, i.e., Ti/SnO₂-Sb₂O₃/α-PbO₂/Ce-Nd-β-PbO₂. The electrochemical activities of the modified electrode were investigated and compared with those of Ce-PbO₂, Nd-PbO₂, and pure PbO₂ electrodes. Scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS) were used to characterize the surface morphology, crystal structure, and elemental states of the modified electrode. The Ce and Nd co-doped PbO₂ electrode had smaller crystal particles, more compact structure, and higher activity of electrocatalysis compared with the single-doped and undoped PbO₂ electrodes. Linear sweep voltammetry (LSV) and electrochemical impedance spectroscopy (EIS) were also utilized to study the electrochemical response of the modified electrodes. The results show that the prepared Ce-Nd-PbO₂ electrode has the highest O₂ evolution potential (OEP) and lowest charge transfer resistance, suggesting that it has the lower energy consumption than the other three kinds of electrodes. Electrochemical oxidation methyl orange (MO) as a model dye wastewater was studied to evaluate the potential applications of this modified electrode in environmental science. It was found that the Ce-Nd-PbO₂ electrode exhibited higher MO and chemical oxygen demand (COD) removal efficiency than single-doped and pure PbO₂ electrodes.

本研究集中于制备，表征，和铈的应用（CE）和钕（Nd）共掺杂的铅（PBO ₂）电极，即，钛/的SnO ₂ -Sb ₂ ö ₃ /α-PBO ₂ / CE -Nd-β-PBO ₂。研究了修饰电极的电化学活性，并与Ce-PbO ₂，Nd-PbO ₂和纯PbO _{2进行了比较。}电极。扫描电子显微镜（SEM），能量色散X射线能谱（EDX），X射线衍射（XRD）和X射线光电子能谱（XPS）用来表征表面形态，晶体结构和元素态修饰电极。与单掺杂和未掺杂的PbO ₂电极相比，Ce和Nd共掺杂的PbO ₂电极具有更小的晶体颗粒，更紧凑的结构以及更高的电催化活性。线性扫描伏安法（LSV）和电化学阻抗谱（EIS）也用于研究修饰电极的电化学响应。结果表明，所制备的Ce-Nd-PbO ₂电极具有最高的O _2。进化电势（OEP）和最低的电荷转移电阻，表明它具有比其他三种电极更低的能耗。对电化学氧化甲基橙（MO）作为模型染料废水进行了研究，以评估该修饰电极在环境科学中的潜在应用。发现Ce-Nd-PbO ₂电极比单掺杂和纯PbO ₂电极具有更高的MO和化学需氧量（COD）去除效率。