Electrochemical Template Synthesis of Ordered Lead Dioxide Nanowires

作者：Philippe Perret, Thierry Brousse, Daniel Bélanger, Daniel Guay · 发表于：Journal of The Electrochemical Society · 年份：2009 · DOI：10.1149/1.3139024 · 被引用次数：44 · 研究领域：Advanced battery technologies research、Electrocatalysts for Energy Conversion、Conducting polymers and applications

Lead dioxide thin films and nanowires were prepared by electrochemical deposition using a solution. is deposited at pH 5.0, while is obtained at pH 0.0. Using pH 5.0, films of different thicknesses and nanowires of different lengths were prepared by varying the deposition charge . The electrochemical reactivity of is strongly dependent on the structure of the deposit. For nanowires and thin films, only and 2–3% of the deposited material is electrochemically active, respectively. A detailed analysis of the reactivity of with the deposition of with the deposition charge was performed by assuming that , where is the percentage of reactive matter, and and are adjustable parameters. For nanowires, and the reactivity is almost independent of the deposition charge (and length of the nanowires). In contrast, for thin films, and the reactivity decreases rapidly with the reciprocal of the deposition charge. After , nanowires and thin films exhibit almost the same activity.