Nanostructure Pt Electrode Obtained via Self-assembly of Nanoparticles on Conductive Oxide-coated Glass Substrate  

作　　者：王维波 罗臻 肖绪瑞 林原 

机构地区：[1]Center for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China [2]Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100101, China

出　　处：《Chinese Journal of Chemistry》2004年第3期256-258,共3页中国化学（英文版）

基　　金：Project supported by the National Research Fund for Fundamental Key Project (No. G2000028205); Innovative Foundation of Chinese Academy of Sciences and the National Natural Science Foundation of China (No. 29873057).

摘　　要：Self-assembly of platinum nanoparticles were applied to fabrication of counter electrode for dye-sensitized solar cells on conductive oxide-coated glass substrate. The present Pt electrode exhibits high exchange current density of 220 mA/cm2, which is comparable to those prepared by electrodeposition, magnetron sputtering or thermal decomposition of platinum chloride. After analysis by transmission electron microscopy (TEM), atomic force microscopy (AFM) and X-ray photoelectron spectroscopy (XPS), it was found that the catalyst was structurally characterized as nanosized platinum metal clusters and was continuously arranged on electrode surface. The present nanostructure electrode had high electrocatalytic activity for the reduction of iodine in organic solution.Self-assembly of platinum nanoparticles were applied to fabrication of counter electrode for dye-sensitized solar cells on conductive oxide-coated glass substrate. The present Pt electrode exhibits high exchange current density of 220 mA/cm2, which is comparable to those prepared by electrodeposition, magnetron sputtering or thermal decomposition of platinum chloride. After analysis by transmission electron microscopy (TEM), atomic force microscopy (AFM) and X-ray photoelectron spectroscopy (XPS), it was found that the catalyst was structurally characterized as nanosized platinum metal clusters and was continuously arranged on electrode surface. The present nanostructure electrode had high electrocatalytic activity for the reduction of iodine in organic solution.

关 键 词：PLATINUM NANOSTRUCTURE electrochemical activity iodide/triiodide redox couple 

分 类 号：O646.5[理学—物理化学]