Abstract In the present work, nucleation mechanism, preparation conditions, performance testing and application simulation of lead dioxide coating materials prepared by electrodeposition from methanesulfonic acid were studied to improve anodic process in zinc electrowinning process. Phase growth and transformation of lead dioxide were analyzed by anodic polarization curves, X-ray powder diffraction, scanning electron microscopy SEM, electrochemical impedance spectroscopy (EIS) and Tafel curves. The selection of temperature ranges was found to cause a quantitative difference in the formation of α/β-PbO2 phases, as it made interval effects on the overpotential that was the primary control condition to affect transfer process, while without changing the reaction mechanism apparently. In this way, the precise conditions of obtaining α- or β-PbO2 phases by varying temperatures was confirmed and samples were selected to be tested in long-period galvanostatic electrolysis, electrode (deposition time-α&β: 2 h&2 h) showed the best physicochemical properties and could effectively extend the lifetime (70.4 h) compared with the traditional lead dioxide electrodes (32.3 h) in zinc electrowinning.

中文翻译：

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一种在甲磺酸中同时电沉积α/β-PbO2涂层材料的方法及其在锌电积中的应用

摘要 本研究通过对甲磺酸电沉积法制备二氧化铅涂层材料的成核机理、制备条件、性能测试和应用模拟进行研究，以改进锌电积过程中的阳极工艺。通过阳极极化曲线、X射线粉末衍射、扫描电镜SEM、电化学阻抗谱(EIS)和Tafel曲线分析了二氧化铅的相生长和相变。发现温度范围的选择会导致 α/β-PbO2 相形成的数量差异，因为它对作为影响转移过程的主要控制条件的过电位产生间隔效应，而没有明显改变反应机制。这样，