硫化ZIF-67薄膜作为方酸敏化太阳能电池对电极的研究  

Study on Sulfuration of ZIF-67Thin Film for Counter Electrode of Squaraine-sensitized Solar Cell

作　　者：许文娇 张敬波[1] 孙玉绣[1] 丁斌[1] 林原[2] XU Wenjiao;ZHANG Jingbo;SUN Yuxiu;DING Bin;LIN Yuan(Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry,Ministry of Education, Tianjin Key Laboratory of Structure and Performance for Functional Molecules,College of Chemistry, Tianjin Normal University,Tianjin 300387,P.R.China;Beijing National Laboratory for Molecular Sciences, Key Laboratory of Photochemistry,Institute of Chemistry,Chinese Academy of Sciences,Beijing 100190,P.R.China)

机构地区：[1]天津师范大学化学学院天津功能分子结构与性能重点实验室教育部无机有机混合功能材料化学重点实验室,天津300387 [2]中国科学院化学研究所光化学重点实验室北京分子科学国家实验室,北京100190

出　　处：《影像科学与光化学》2018年第5期381-388,共8页Imaging Science and Photochemistry

基　　金：国家自然科学基金面上项目(21273160)资助

摘　　要：沸石-咪唑框架结构(ZIFs)是一种新型多孔材料,具有表面积大、孔隙度高、孔隙大小可调节和通道规则等独特的优点。本文通过硫化涂覆在导电玻璃上的ZIF-67薄膜,制备了多孔碳和硫化钴复合材料,研究了其对I-/I-3氧化还原对的催化性能,以替代铂作为方酸染料敏化太阳能电池的对电极。通过X射线衍射、扫描电镜和等温吸附的测量,分析了硫化ZIF-67得到的对电极多孔膜的结构和形态特征,并通过Tafel曲线和电化学阻抗谱图对其催化性能进行评价。结果表明,硫化60min的ZIF-67对电极催化性能与Pt对电极相当,方酸敏化太阳能电池的光电转换效率分别是4.03%和4.10%。Zeolitic-imidazole frameworks(ZIFs),as novel porous materials,have some special advantages such as large specific surface area,versatile porosity and well-connected networks.Here,we report porous composite materials of carbon and cobalt sulphide prepared by sulfuration of ZIF-67 thin film on the conducting glass.Then its catalytic performance was studied to replace platinum as the counter electrode for squaraine-sensitized solar cell.The structure and morphological characteristics of the sulfurating ZIF-67 porous thin films were obtained by X-ray diffraction,scanning electron microscope and isothermal adsorption measurements.The catalytic performance was evaluated by Tafel curve and electrochemical impedance spectrogram.It is concluded that the catalytic performance of sulfurating ZIF-67 for 60 min was compared with Pt,and the photoelectric conversion efficiency of the squaraine-sensitized solar cell was 4.03%and 4.10%,respectively.

关 键 词：ZIF-67 硫化 对电极 方酸敏化太阳能电池 

分 类 号：TM914.4[电气工程—电力电子与电力传动]