Electronic structures of conducting polymers could change in the presence of other conjugated materials. Poly(N-methylthionine) (PNMTh) has a lower conductivity and a slower polymerization rate at conventional electrodes as compared to polyaniline. Here, we present a novel enhanced electroactive and electrochromic PNMTh/electrochemically reduced graphene oxide (ERGO) composite by the combination of electrochemical reduction and catalytic polymerization: ERGO acts as both the efficient template and catalyst for the NMTh polymerization, and also offers both the high conductivity and large surface area to enhance the electrochemical and electrochromic behaviors of the pure PNMTh. The morphology and composition of the obtained composite was characterized via X-ray photoelectron spectra (XPS), UV–Visible (UV–Vis) spectra, Fourier transformed infrared (FTIR) spectra, and scanning electron microscopy (SEM). The obtained PNMTh/ERGO composite has a good potential to be used in (bio-) sensors, biofuel cells, electrochromic devices, and other electrochemical applications.

在其他共轭材料的存在下，导电聚合物的电子结构可能会发生变化。与传统的聚苯胺相比，聚（N-甲基硫氨酸）（PNMTh）在常规电极上具有较低的电导率和较慢的聚合速率。在这里，我们通过电化学还原和催化聚合的组合，提出了一种新型的增强型电活性和电致变色PNMTh /电化学还原氧化石墨烯（ERGO）复合材料：ERGO既是NMTh聚合的有效模板和催化剂，又提供了高导电性和大表面积，以增强纯PNMTh的电化学和电致变色行为。所得复合材料的形貌和组成通过X射线光电子能谱（XPS），紫外线可见（UV-Vis）光谱，傅立叶变换红外（FTIR）光谱和扫描电子显微镜（SEM）。所得的PNMTh / ERGO复合材料具有良好的潜力，可用于（生物）传感器，生物燃料电池，电致变色设备和其他电化学应用。