TiO_2一维纳米阵列电极表面氧气泡发展规律研究  

Study on Oxygen Bubble Evolution from One-Dimensional TiO_2 Nanoarrays Photoelectrode

作　　者：曹振山 胡晓玮[1] 郭烈锦[1] 王晔春[1] 

机构地区：[1]西安交通大学动力工程多相流国家重点实验室,西安710049

出　　处：《工程热物理学报》2016年第2期353-356,共4页Journal of Engineering Thermophysics

基　　金：国家自然科学基金重点项目(No.51236007);国家自然科学基金优秀重点实验室研究项目(No.51323011)

摘　　要：光电化学分解水反应驱动的氧气泡生长,是发生在固液表面典型的物理化学过程。本文通过搭建的光电化学分解水反应体系,利用显微拍摄系统,探究了氧气泡在光电极表面的发展规律,结果表明气泡大小与生长时间遵循关系;并通过改变反应溶液的浓度和激发光源的光照强度,总结了溶液浓度和光照强度对气泡的生长时间与脱离直径的影响规律。The development of oxygen bubbles driven by photoelectrochemical water splitting is a typical physical and chemical process on the solid-liquid surface.In this paper we investigated the law of the evolution of oxygen bubbles on the surface of photoelectrode in the photoelectrochemical water splitting reaction system.The results showed that the bubble size and growth time follow the relationship d∞ t^（1/3）.Through changing the concentration of solution and the intensity of laser,we summarized the effects of solution concentration and intensity on the bubble growth time and departure diameter.

关 键 词：纳米阵列 光电极 氧气泡 生长时间 脱离直径 

分 类 号：O359[理学—流体力学]