Fabrication of Various Conducting Polymers Using Graphene Oxide as a Chemical Oxidant

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• 作者：Minkyu Kim ; Choonghyeon Lee ; Young Deok Seo ; Sunghun Cho ; Jihoo Kim ; Gyeongseop Lee ; Yun Ki Kim ; Jyongsik Jang
• 刊名：Chemistry of Materials
• 出版年：2015
• 出版时间：September 22, 2015
• 年：2015
• 卷：27
• 期：18
• 页码：6238-6248
• 全文大小：704K
• ISSN：1520-5002

文摘

Recently, using graphene oxide (GO) for 鈥渃arbocatalysis鈥?has been very attractive as a novel application of graphene-based nanomaterials and is expected to open a host of possibilities for chemical synthesis because of the abundance of natural carbon sources, as well as the low density, extensive chemical functionalization, hydrophilicity, low cost, and ease of preparation. Here, we demonstrate that the GO can play a role as a chemical oxidant for various CPs (polythiophene, polyaniline, and polypyrrole), and diverse graphene鈥揅P composites (graphene鈥損olythiophene, graphene鈥損olyaniline, and graphene鈥損olypyrrole) can simply and rapidly be synthesized by using the GO as both graphene precursor and chemical oxidant. The UV鈥搗is analysis confirms that the GO has successfully polymerized the CPs and been transformed to reduced graphene oxide (RGO). The SEM and TEM analyses show that the CPs have successfully been coated on the few-layered graphene sheets. Raman analysis and series of FT-IR analyses have been conducted to survey what functional group in the GO polymerized the monomers, and they reveal that hydroxyl and epoxy groups in the GO polymerized the monomers. Finally, plausible polymerization mechanisms have specifically and deeply proposed based on the IR result, classical radical polymerization mechanisms of the CPs, and widely adopted thermal reduction mechanism of the GO.