论文部分内容阅读
采用简单的原位氧化聚合法成功制备了Mn2+掺杂聚苯胺/还原氧化石墨烯(Mn2+-PANI/r GO)复合物电极材料,利用傅里叶变换红外光谱、X射线衍射、扫描电镜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。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%。过渡金属和石墨烯的加入提高了电极材料的电化学性能,高的比电容和优良的循环稳定性使Mn2+-PANI/r GO复合物在超级电容器中有很好的应用前景。
The Mn2 + -doped polyaniline / reduced graphene oxide (Mn2 + -PANI / rGO) composite electrode material was successfully prepared by a simple in-situ oxidation polymerization method and characterized by Fourier transform infrared spectroscopy, X-ray diffraction, scanning electron microscopy Chemical tests and other means of its structure, morphology and electrochemical capacitance performance analysis. The results show that the nano-rod-like manganese ion-doped polyaniline is uniformly dispersed in the wrinkled graphene to form a cross-linked porous structure. When the current density is 2A / g, the discharge capacity of the electrode is up to 952 F / g, and the initial specific capacitance retention is 86.2% after 1000 cycles. The addition of transition metal and graphene improves the electrochemical performance of the electrode materials. The high specific capacitance and excellent cycle stability make the Mn2 + -PANI / rGO composite have good application prospect in supercapacitors.