This work reports on the preparation of an electrode material based on polyaniline (PAni) thin film, with an average thickness of 100 nm, containing copper (Cu) microparticles dispersed on its surface. The prepared electrode material was employed as a sensor for glucose determination in alkaline medium. A two-step electrochemical process was used to synthesize the Cu–PAni composite films: First, PAni layer was deposited on indium tin oxide (ITO) substrate from an organic solution of the aniline under potensiostaic conditions. Secondly, Cu particles were electrodeposited on PAni/ITO surface from a separate aqueous solution by chronoamperometry technique. The morphology analysis of the Cu–PAni composites shows that the copper particles are visible like stars uniformly dispersed over the polymer surface. XRD patterns shows that the PAni film is amorphous whereas copper is polycrystalline. Examined by cyclic voltammetry and chronoamperometry techniques, the response to glucose of the Cu–PAni/ITO electrode shows good performance in 0.1 M NaOH solution.

中文翻译：

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基于星形铜粒子-聚苯胺复合膜的无酶葡萄糖传感器

这项工作报道了基于聚苯胺（PAni）薄膜的电极材料的制备，该薄膜平均厚度为100 nm，表面上分散有铜（Cu）微粒。所制备的电极材料用作在碱性介质中测定葡萄糖的传感器。使用两步电化学过程合成Cu-PAni复合膜：首先，在电位稳定条件下，从苯胺的有机溶液中将PAni层沉积在铟锡氧化物（ITO）衬底上。其次，通过计时安培技术从独立的水溶液中将铜颗粒电沉积在PAni / ITO表面上。Cu-PAni复合材料的形态分析表明，铜颗粒像星星一样可见，均匀分布在聚合物表面。X射线衍射图表明，PAni膜是非晶的，而铜是多晶的。通过循环伏安法和计时安培法检查，Cu-PAni / ITO电极对葡萄糖的响应在0.1 M NaOH溶液中显示出良好的性能。