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Conducting carbonized polyaniline nanotubes

机译：导电碳化聚苯胺纳米管

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Conducting nitrogen-containing carbon nanotubes were synthesized by the carbonization of self-assembled polyaniline nanotubes protonated with sulfuric acid. Carbonization was carried out in a nitrogen atmosphere at a heating rate of 10 °C min~(-1) up to a maximum temperature of 800 °C. The carbonized polyaniline nanotubes which have a typical outer diameter of 100-260 nm, with an inner diameter of 20-170 nm and a length extending from 0.5 to 0.8 μ.m, accompanied with very thin nanotubes with outer diameters of 8-14 nm, inner diameters 3.0-4.5 nm and length extending from 0.3 to 1.0 _m, were observed by scanning and transmission electron microscopies. Elemental analysis showed 9 wt% of nitrogen in the carbonized product. Conductivity of the nanotubular PANI precursor, amounting to 0.04 S cm~(-1), increased to 0.7 S cm~(-1) upon carbonization. Molecular structure of carbonized polyaniline nanotubes has been analyzed by FTIR and Raman spectroscopies, and their paramagnetic characteristics were compared with the starting PANI nanotubes by EPR spectroscopy.
机译：通过将硫酸质子化的自组装聚苯胺纳米管碳化，可以合成导电的含氮碳纳米管。碳化是在氮气气氛中以10°C min-1（-1）的加热速率进行的，直至最高温度为800°C。碳化的聚苯胺纳米管，其典型外径为100-260 nm，内径为20-170 nm，长度从0.5到0.8μm，并伴有非常细的纳米管，外径为8-14 nm通过扫描和透射电子显微镜观察到内径为3.0-4.5nm，长度为0.3-1.0μm。元素分析显示碳化产物中氮的含量为9 wt％。碳化后，纳米管PANI前体的电导率达到0.04 S cm〜（-1），达到0.04 S cm〜（-1）。通过FTIR和拉曼光谱分析了碳化聚苯胺纳米管的分子结构，并通过EPR光谱将其顺磁性与起始的PANI纳米管进行了比较。

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