A simple and versatile method based on noncovalent supramolecular attachment and layer-by-layer (LBL) assembly is proposed to prepare nanostructured hybrid conducting polymer. The negatively charged poly(sodium 4-styrenesulfonate) (PSS) wrapped multiwalled carbon nanotubes (MWCNTs) is doped with cationic polyaniline (PANI) nanofibers via LBL assembly, and a well-defined PANI/MWCNTs composite was obtained. The LBL assembly process is characterized by scanning electron microscopy, energy dispersive spectrometry and electrochemical methods. It was found that PSS wrapped MWCNTs inside the multilayer film can dope nanostructured PANI effectively and shift its electroac-tivity to a neutral pH environment. Moreover, the conducting composites show ampero-metric response for hydrogen peroxide with a linear range of 2.0 x 10~(-7)-1.0 x 10~(-3) mol L~(-1).
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机译:提出了一种基于非共价超分子附着和逐层(LBL)组装的简单通用方法制备纳米结构杂化导电聚合物。通过LBL组装掺杂阳离子聚苯胺(PANI)纳米纤维,得到带负电荷的聚(4-苯乙烯磺酸钠)(PSS)包裹的多壁碳纳米管(MWCNTs),得到了明确的PANI/MWCNTs复合材料。LBL组装工艺的特点是扫描电子显微镜、能量色散光谱和电化学方法。结果发现,在多层薄膜内包裹的PSS包裹MWCNTs可以有效地掺杂纳米结构的PANI,并将其电化学能转移到中性pH环境。此外,导电复合材料对过氧化氢表现出安培响应,线性范围为2.0 x 10~(-7)-1.0 x 10~(-3) mol L~(-1)。
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