| 冯晓娟,石彦龙,邵前飞,金小青,李永燕.化学通报,2016,79(9):828-833,804. |
| 交联多孔结构的Mn2 掺杂聚苯胺/石墨烯复合材料的制备及超级电容特性 |
| Preparation and Supercapacitive Performance of Porous Cross-linked Mn2 -doped Polyaniline/Reduced Graphene Oxide Composite |
| 投稿时间：2016-01-29 修订日期：2016-04-09 |
| DOI： |
| 中文关键词: 过渡金属 掺杂聚苯胺 石墨烯 电化学电容 |
| 英文关键词:Transition metal,Doped-Polyaniline,Graphene,Electrochemical capacitance |
| 基金项目:河西学院西部资源环境化学重点实验室基金资助项目(XZ14007)资助 |
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| 中文摘要: |
| 采用简单的原位氧化聚合法成功制备了Mn2 掺杂聚苯胺/石墨烯(Mn2 -PANI/rGO)复合物电极材料,利用傅里叶变换红外(FT-IR)光谱、X射线衍射(XRD)、扫描电镜(FESEM)和电化学测试等手段对其结构、形貌和电化学电容性能进行了分析研究。结果表明,纳米棒状的锰离子掺杂态聚苯胺均匀分散在褶皱的石墨烯中,形成交联状的多孔结构；Mn2 -PANI/rGO复合物具有高的比电容和优良的循环稳定性,当电流密度为2A/g时,电极的放电比容量高达952 F/g, 循环1000 次后初始比电容的保持率为86.2%,这表明过渡金属和石墨烯的加入增强了其电化学性能,高的比电容和好的速率使其复合物有望在超级电容器中有广泛的应用前景。 |
| 英文摘要: |
| The Mn2 doped-polyaniline(PANI)/reduced grapheme oxide (rGO) composite was successfully prepared via a simple in-situ chemical oxidative polymerization method．Fourier transform infrared spectra (FT-IR), X-ray diffraction (XRD), Scanning electronic microscopy (SEM) and electrochemical measurements were performed to investigate the structure, morphology and supercapacitive performance of the composite. The results showed that the nanorods doped-polyaniline was distributed into the graphene layers formed by folding. And the composite maintained higher specific capacitance and better cycle stability. Its specific capacitance is 952 F/g under the current density of 2 A/g, after 1000 cycles, the capacitance value remains about 86.2% of that of initial cycle. Transition metal doping and rGO enhance the electrochemical properties of the nanocomposites. The better specific capacitance and charge/discharge rates make them promising candidates as electrodes in supercapacitors. |
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