ZIF-67 containing cobalt cation was selected as the research object,and the carbon-containing cobalt matrix nanocomposite(C&Co)was obtained after heat treatment in a nitrogen atmosphere at the appropriate temperature.The nanostructures and morphologies of the nanocomposite were analyzed by X-ray diffraction,field emission scanning electron microscopy,transmission electron microscopy,and X-ray photoelectron spectroscopy.The electrochemical response was comprehensively characterized by cyclic voltammetry,electrochemical impedance spectroscopy,and Tafel polarization.The electrochemical analysis of the C&Co nanocomposite electrode shows that the electrode has an obvious electrocatalytic activity for the reduction of the triiodide compound.The conversion efficiency of dye-sensitized solar cells prepared with C&Co nanocomposite electrode shows 5.3%under the condition of AM1.5G simulated sunlight irradiation,which shows great application potential in Pt-free electrode materials.
染料敏化太阳电池(dye-sensitized solar cells,DSSC)由于制备工艺简单、成本低、对环境友好等一系列优点,一直以来受到研究学者的高度重视。在针对染料敏化太阳电池的研究中,对电极的研究是一个重要研究方向。总结了当前针对染料敏化太阳电池对电极的研究内容,重点阐述了采用不同材料的对电极的研究现状,并对染料敏化太阳电池对电极未来的研究方向进行了展望。
