文章摘要
单极脉冲法沉积聚3,4-乙烯二氧噻吩及其电容性能
Capacitive Properties of Poly (3,4-ethylenedioxythiophene) Electrodeposited by Unipolar Pulse
  
DOI:10.16865/j.cnki.1000-7555.2018.02.013
中文关键词: 单极脉冲法  超级电容  聚3,4-乙烯二氧噻吩  循环伏安法  恒电流充放电
英文关键词: unipolar pulse method  supercapacitor  poly (3,4-ethylenedioxythiophene)  cyclic voltammetry  galvanostatic charge/discharge
基金项目:国家自然科学基金资助项目(21304065)
作者单位
刘晓晓,王媛媛,杜海燕,许玉玉 太原理工大学 化学化工学院,山西 太原 030024 
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中文摘要:
      聚3,4-乙烯二氧噻吩(PEDOT)因具有非常高的离子电导率而被广泛研究。文中以EDOT 为单体,采用单极脉冲法在不锈钢片基底上制备了PEDOT膜电极。考察了不同脉冲参数对PEDOT膜超级电容的影响。通过扫描电子显微镜、傅里叶变换红外光谱表征PEDOT涂覆的不锈钢电极,确认了PEDOT 由不规则的虚球体堆积成褶皱状结构,证实了ClO4- 成功掺杂于PEDOT膜中;通过循环伏安法、恒电流充电/放电和电化学阻抗谱得到:PEDOT 电极展示出良好的比电容(128.64F/g)、倍率性能和稳定性(循环2000次保留率达71.26%)。对于低成本、高性能的能量存储应用显示出相当大的潜力。
英文摘要:
      Poly (3,4-ethylenedioxythiophene) (PEDOT) was extensively studied for its high ionic conductivity. In this paper, PEDOT films electrodes were prepared on the stainless steel substrates by unipolar pulse method using 3,4-ethylenedioxythiophene (EDOT) as monomer. The effects of different pulse parameters on the capacitance of PEDOT films were investigated. The PEDOT-coated stainless steel electrode was characterized by scanning electron microscopy and Fourier transform infrared spectroscopy, which confirm that PEDOT films are deposited into a pleated structure by an irregular virtual sphere, and a high degree of ClO4- is successfully doped in the PEDOT films. In addition, the results of cyclic voltammetry and galvanostatic charge/discharge show that the PEDOT electrodes exhibit a good specific capacitance of 128.64 F/g, rate performance and stability (retention rate=71.26% after 2000 cycles). The thin, lightweight electrode material based supercapacitor shows considerable potential for low-cost, high-performance energy storage applications.
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