Synthesis of polyaniline/TiO2 nanocomposites with metalloporphyrin and metallophthalocyanine catalysts
Synthesis of polyaniline/TiO2 nanocomposites with metalloporphyrin and metallophthalocyanine catalysts
复制标题
DOI：
10.1142/s1088424609001248
复制
发表时间：
2009-08
影响因子：
1.5
通讯作者：
M. Nabid;R. Sedghi;A. B. Moghaddam;M. Barari;P. R. Jamaat;N. Safari
中科院分区：
文献类型：
--
作者：
M. Nabid;R. Sedghi;A. B. Moghaddam;M. Barari;P. R. Jamaat;N. Safari
无机纳米粒子结合导电聚合物提供了有趣的物理性质。本研究描述了金属卟啉和金属酞菁在纳米颗粒表面催化氧化聚合发生苯胺聚合。通过这种方法，得到了聚苯胺/TiO2纳米复合材料的核壳结构。结果表明，卟啉是一种比酞菁更好的纳米复合材料催化剂。利用扫描电镜（SEM）和红外光谱（FT-IR）等技术对纳米复合材料的形貌和组成进行了表征。TGA分析表明，铁（III）四磺化四苯基卟啉和铁（II）四磺化酞菁合成的纳米复合材料分别含有10%和5%的导电聚苯胺（按质量计）。最终，伏安图显示这些纳米复合材料具有电活性，并且阳极和阴极峰值电流与扫描速率之间存在线性关系。
Inorganic nanoparticles combined with conducting polymers provide interesting physical properties. This research describes the aniline polymerization taking place on the nanoparticles surface by catalytic oxidative polymerization with metalloporphyrin and metallophthalocyanine. In this way, the core-shell structure of the polyaniline/TiO2 nanocomposites was obtained. The comparison of results demonstrates that porphyrin is a better catalyst than phthalocyanine for synthesis of nanocomposite. The morphology and composition of the nanocomposites were characterized by techniques such as SEM and FT-IR spectroscopy. TGA analysis showed that the nanocomposites, synthesized with iron(III) tetrasulfonated tetraphenyl porphyrin and iron(II) tetrasulfonated phthalocyanines, contained 10% and 5% conducting polyaniline (by mass), respectively. Eventually, the voltammograms revealed that these nanocomposites were electroactive and there was a linear relationship between the anodic and cathodic peak current values and scan rates.