Abstract PbO2 electrode is one of crucial materials in electrochemical field, however, the fabrications of nanostructured PbO2 materials are highly confined to the template method. In this work, the nanostructured PbO2 materials were controllably synthesized by template-free electrodeposition method. It is found that the microstructure of PbO2 material was highly depended on the electrochemical deposition models, i.e., cyclic voltammetry (CV) method, potentiostatic method (PM), pulse potentiostatic method (PPM) and pulse galvanostatic method (PGM). Especially, PbO2 nanorod built by nanoparticles with chrysanthemum-like array synthesized in the absence of template by pulse potential deposition method showed high specific capacitance and good stability for supercapacitor application.

中文翻译：

---

具有菊花状阵列的 PbO2 纳米棒的无模板电合成

摘要 PbO2电极是电化学领域的关键材料之一，但纳米结构PbO2材料的制备高度受限于模板法。在这项工作中，纳米结构的 PbO2 材料是通过无模板电沉积方法可控地合成的。结果表明，PbO2 材料的微观结构高度依赖于电化学沉积模型，即循环伏安法 (CV) 法、恒电位法 (PM)、脉冲恒电位法 (PPM) 和脉冲恒电流法 (PGM)。特别是，在没有模板的情况下，通过脉冲电位沉积法合成的菊花状阵列纳米粒子构建的 PbO2 纳米棒显示出高比电容和良好的超级电容器应用稳定性。