The preparation of novel hollow tetragonal starlike polyaniline and its electrochemical performance
The preparation of novel hollow tetragonal starlike polyaniline and its electrochemical performance
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DOI：
10.1007/s10854-014-2047-3
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发表时间：
2014-06
期刊：
影响因子：
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通讯作者：
Mei Li;Yunqiang Zhang;Yingkai Liu
中科院分区：
文献类型：
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作者：
Mei Li;Yunqiang Zhang;Yingkai Liu
采用水热法首次成功合成了柠檬酸掺杂的新型中空四边形星形聚苯胺（HTS-PANI）。采用扫描电镜、透射电镜、紫外-可见光谱、傅里叶透射红外光谱和x射线衍射对合成的聚苯胺进行形貌和结构分析。结果表明，HTS-PANI呈半氧化还原态，高度结晶，具有良好的热稳定性。根据恒流充放电分析，在1 M KCl电解液中，当电流密度为0.2 a g−1时，样品的比电容高达460 F g−1，在电流密度为5 a g−1时，经过1000次充放电后，样品的比电容保持在58%左右。
Novel hollow tetragonal starlike polyaniline (HTS-PANI) doped with citric acid has been successfully synthesized by hydrothermal method for the first time. Scanning electron microscopy, transmission electron microscopy, UV–visible spectroscopy, Fourier transmission infrared spectroscopy, and X-ray diffraction were employed to analysis the morphology and structure of the obtained PANI. The results show that the HTS-PANI is in semi redox state and highly crystallized, accompanied with good thermal stability. According to the galvanostatic charge–discharge analysis, the specific capacitance of the sample is up to 460 F g−1at a current density of 0.2 A g−1in 1 M KCl electrolyte, and retains about 58 % after 1,000 charge–discharge processes at a current density of 5 A g−1.