Promoted supercapacitive performances of electrochemically synthesized poly(3,4-ethylenedioxythiophene) incorporated with manganese dioxide
Promoted supercapacitive performances of electrochemically synthesized poly(3,4-ethylenedioxythiophene) incorporated with manganese dioxide
复制标题
掺有二氧化锰的电化学合成聚（3,4-乙撑二氧噻吩）的超级电容性能得到提升
DOI：
10.1007/s10854-017-8333-0
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发表时间：
2018-03
期刊：
影响因子：
--
通讯作者：
Zhai Hua-Jin
中科院分区：
文献类型：
--
作者：
Zhou Haihan;Zhi Xiaomin;Zhai Hua-Jin
研究了一种简便的电化学共沉积法制备超级电容器用二氧化锰/聚（3,4-乙烯二氧噻吩）（PEDOT）复合电极的方法。电极表征包括傅里叶变换红外光谱、x射线衍射和能量色散x射线光谱，表明MnO2/PEDOT复合材料制备成功。电化学测试表明，MnO2/PEDOT复合电极的电化学性能优于MnO2和PEDOT单独电极。制备的MnO2/PEDOT复合材料在10 mV s−1下具有89.7 mF cm−2的高面积比电容，具有优异的倍率能力和循环稳定性（在5000次循环中保持97.1%的初始电容）。与之前报道的其他导电聚合物（包括基于PEDOT的复合电极）相比，我们开发的复合材料也表现出优越的超级电容性能。MnO2/PEDOT复合材料的这些性能与形成的多孔微结构和两组分之间的协同作用密切相关。目前，基于MnO2/PEDOT的有机-无机杂化材料在超级电容器领域具有广阔的应用前景。
A facile electrochemical codeposition method was developed to prepare the manganese dioxide/poly(3,4-ethylenedioxythiophene) (PEDOT) composite electrodes for supercapacitor applications. Electrode characterizations include Fourier transform infrared spectroscopy, X-ray diffraction, and energy dispersive X-ray spectroscopy, indicating that the MnO2/PEDOT composite is prepared successfully. Electrochemical tests manifest that MnO2/PEDOT composite electrodes have better electrochemical properties than individual MnO2 and PEDOT electrodes. The as-prepared MnO2/PEDOT composite achieves a high areal specific capacitance of 89.7 mF cm−2 at 10 mV s−1, as well as superior rate capability and cycle stability (maintaining 97.1% of initial capacitance for 5000 cycles). The composite we have developed also exhibits superior supercapacitive performances relative to other conducting polymers reported previously, including PEDOT based composite electrodes. These properties of MnO2/PEDOT composite are closely related to the porous microstructures formed and the synergic effect between the two components. The present MnO2/PEDOT based organic–inorganic hybrid materials are very promising for supercapacitor applications.
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