可见光“全”分解水的类纳光电化学(PEC)电池模型  

Nano Photoelectrochemical Cell-like Model for Visible-light-responded Overall Splitting of Water

作　　者：李秋叶[1] 金振声[1,2] 

机构地区：[1]河南大学特种功能材料重点实验室,河南开封475001 [2]中国科学院兰州化学物理研究所,甘肃兰州730000

出　　处：《影像科学与光化学》2015年第2期99-107,共9页Imaging Science and Photochemistry

摘　　要：本文在对新型TiO2的光、电性质和形貌学研究基础上,首次提出"可见光‘全’分解水的类纳PEC电池模型",将水的redox反应分别放在新型TiO2纳米管内、外表面上进行。模型还提出以合适电化学性质的可变价金属氧化物作为放氧催化剂,表面晶格氧参与放O2过程,克服"全"光解水中四电子转移放O2的困难。此模型期望更多同行进行探索、验证。A nano photoelectrochemical（PEC）cell-like model for visible-light-responded over-all splitting of water was proposed based on the investigation of the photo-electric properties and morphology of the novel TiO2.In this model,the reduction and oxidation of water proceeds on the inner and outer surface of novel TiO2 nanotubes,respectively.The variable-valence metal oxide with suitable electrochemical properties could be used as the water oxidation catalyst,and its surface lattice oxygen would take part in O2 evolution.The difficulty of overall water splitting,i.e.,evolving of O2 while needs to transfer four electrons,might be overcome.We want that this nano PEC cell-like model will be explored and verified by colleagues in the future.

关 键 词：纳米管钛酸 纳米管新型TiO2 可见光分解水 类纳PEC电池模型 

分 类 号：O646[理学—物理化学]