聚苯胺/MIL-101纳米复合材料电极的制备及其电化学性能

Preparation and electrochemical performance of polyaniline/MIL-101 nanocomposite electrode

以苯胺(An)和MIL-101为原料,樟脑磺酸(CSA)为掺杂剂,过硫酸铵(APS)为氧化剂,采用原位聚合的方法制备了聚苯胺/MIL-101纳米复合材料,以ITO电极为基底,通过电泳沉积制备聚苯胺/MIL-101纳米复合材料电极.利用傅立叶红外光谱仪(FT-IR)、X-射线衍射仪(XRD)、扫描电子显微镜(SEM)对材料进行表征.采用BET法研究了比表面积,并对其电导率及电化学性能进行了测试.研究结果表明:聚苯胺/MIL-101纳米复合材料的比表面积可达313.41m^2/g;当m_(MIL-101)∶m_(An)=0.4∶1时,电导率最大可达1.421S/cm,且复合材料电极的氧化峰电流达到6.01mA,电荷转移电阻最小.

Aniline and MIL-101 are used as raw materials,camphorsulfonic acid(CSA)is used as dopant,ammonium persulfate(APS)is used as oxidant,and PANI/MIL-101 nanocomposite with different mass ratios are prepared by insitu polymerization.PANI/MIL-101 nanocomposite electrode is prepared by using electrophoretic deposition based on ITO electrode.The materials are characterized by Fourier transform infrared spectroscopy(FT-IR),X-ray diffractometry(XRD)and scanning electron microscopy(SEM).The specific surface area is tested by BET method and its electrical properties are tested.The results show that the spe-cific surface area of PANI/MIL-101 nanocomposite can reach 311.41 m^2/g;when the mass ratio of MIL-101 to PANI is 0.4:1,the conductivity is up to 1.421 S/cm.Then,the electrochemical performances of the PANI and PANI/MIL-101 nanocomposite electrodes are tested.The composite electrode has an oxidation peak current of 6.01 mA and a minimum charge transfer resistance.