Tangled silver nanoparticles embedded layered polythiophene-functionalized multiwalled carbon nanotube ternary nanocomposite (PTCNT-COOH 300 Ag) has been prepared by ascorbic acid reduction of silver nitrate solution in presence of aqueous dispersion of polythiophene-functionalized multiwalled carbon nanotube (PTCNT-COOH) binary nanocomposites. Binary polythiophene–functionalized multiwalled carbon nanotube nanocomposites have been prepared by in-situ chemical oxidative polymerization of thiophene monomer stabilized by sodium bis(2-ethylhexyl) sulfosuccinate (AOT) micelles in presence of functionalized multiwalled carbon nanotubes (MWCNT-COOH) using ferric chloride (FeCl₃) as an oxidizing agent in chloroform solvent. The structural formation and composition of binary and ternary nanocomposites have been confirmed by fourier transform infrared spectroscopy, fourier transform Raman spectroscopy, X-ray photoelectron spectroscopy (XPS) and wide angle X-ray diffraction studies. Scanning electron microscopy (SEM) studies have revealed the nanofibrous morphology in binary nanocomposites (PTCNT-COOHs), whereas in ternary nanocomposites (PTCNT-COOH 300 Ag), silver nanoparticles were densely embedded as nanoparticles over nanofibrous structure. Transmission electron microscopic (TEM) images have provided the evidence regarding silver nanoparticles that existed in a tangled state over the nanofibrous structure. Stable dispersion of binary nanocomposites (PTCNT-COOHs) in water, ethanol and chloroform enabled us to record the UV–visible absorption spectra which have shown two peaks at 260 nm and 360 nm corresponding to π-π* transition from aromatic rings and π-polaron absorption of polythiophene respectively. On the other hand, ternary nanocomposites have shown surface plasmon resonance as broad peak tailing to 550 nm. The electrical conductivity of nanocomposites PTCNT-COOH 100 (binary nanocomposite), PTCNT-COOH 200 (binary nanocomposite), PTCNT-COOH 300 (binary nanocomposite), pristine MWCNT, functionalized MWCNT-COOH, MWCNT-COOH Ag (binary nanocomposite) and PTCNT-COOH 300 Ag (ternary nanocomposite) were 4.42 × 10⁻², 5.30 × 10⁻¹, 1.64, 8.66, 2.80, 12.40 and 80.76 S/cm respectively. The enhanced electrical conductivity of ternary nanocomposites was due to the effective charge transport through polythiophene layer which act as conductive bridge between multiwalled carbon nanotube and silver nanoparticles. Thermogravimetric analysis have revealed that high thermal stability of ternary silver nanocomposites of PTCNT-COOH 300 Ag up to 620 °C for 10% weight loss. Silver nanoparticles embedded ternary nanocomposite in basic medium shows least leaching effect, therefore it could potentially useful in catalytical applications.

在聚噻吩官能化多壁碳纳米管（PTCNT-COOH）二元纳米复合材料水分散体存在下，通过抗坏血酸还原硝酸银溶液制备了缠结的银纳米颗粒包埋的聚噻吩官能化多壁碳纳米管三元纳米复合材料（PTCNT-COOH 300 Ag）。。在化学功能化的多壁碳纳米管（MWCNT-COOH）存在下，通过功能化多壁碳纳米管（MWCNT-COOH）存在下的双（2-乙基己基）磺基琥珀酸钠（AOT）胶束稳定的噻吩单体的化学氧化聚合，制备了二元聚噻吩功能化的多壁碳纳米管纳米复合材料（的FeCl ₃）作为氯仿溶剂中的氧化剂。二元和三元纳米复合材料的结构形成和组成已通过傅里叶变换红外光谱，傅里叶变换拉曼光谱，X射线光电子能谱（XPS）和广角X射线衍射研究得到了证实。扫描电子显微镜（SEM）研究表明，二元纳米复合材料（PTCNT-COOHs）中的纳米纤维形态，而三元纳米复合材料（PTCNT-COOH 300 Ag）中，银纳米颗粒以纳米纤维结构的形式紧密嵌入纳米颗粒中。透射电子显微镜（TEM）图像已提供了有关纳米纤维结构上以缠结状态存在的银纳米颗粒的证据。二元纳米复合材料的稳定分散（在水，乙醇和氯仿中的PTCNT-COOHs）使我们能够记录UV-可见吸收光谱，该光谱在260 nm和360 nm处显示了两个峰，分别对应于芳环的π-π*跃迁和聚噻吩的π-极化子吸收。另一方面，三元纳米复合材料显示出表面等离振子共振为宽峰拖尾到550 nm。纳米复合材料PTCNT-COOH 100（二元纳米复合材料），PTCNT-COOH 200（二元纳米复合材料），PTCNT-COOH 300（二元纳米复合材料），原始MWCNT，功能化MWCNT-COOH，MWCNT-COOH Ag（二元纳米复合材料）和PTCNT的电导率-COOH 300 Ag（三元纳米复合材料）为4.42×10^-2，5.30×10 ^-1，1.64，8.66，2.80，12.40和80.76小号分别/厘米。三元纳米复合材料电导率的提高是由于通过聚噻吩层的有效电荷传输，聚噻吩层充当了多壁碳纳米管和银纳米颗粒之间的导电桥。热重分析表明，PTCNT-COOH 300 Ag的三元银纳米复合材料在高达620°C的温度下具有10％的重量减少，具有很高的热稳定性。在基本介质中嵌入三元纳米复合材料的银纳米颗粒显示出最小的浸出效果，因此可能在催化应用中有用。