Investigations on bubble growth mechanism during photoelectrochemical and electrochemical conversions

被引：44
|
作者：
Wang, Yechun [1 ]
Hu, Xiaowei [1 ]
Cao, Zhenshan [1 ]
Guo, Liejin [1 ]
机构：
[1] Xi An Jiao Tong Univ, Int Res Ctr Renewable Energy, State Key Lab Multiphase Flow Power Engn, Xian 710049, Peoples R China
来源：
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2016年 / 505卷
基金：
中国博士后科学基金; 中国国家自然科学基金;
关键词：
Electrolysis; Photoelectrochemical conversion; TiO2; Bubble; Gas-evolving; PHOTOCATALYTIC ACTIVITY; WATER ELECTROLYSIS; CHARGE RECOMBINATION; HYDROGEN EVOLUTION; DYNAMICS; TIO2; GAS;
D O I：
10.1016/j.colsurfa.2016.01.004
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Bubbles evolving from electrode surface are the results of the multi-processes, interfacial mass transfer, chemical reaction, micro fluid flow, etc. In this paper, the investigations on the bubble growth mechanism during photoelectrochemical and electrochemical conversions are carried out. The experimental results show two different growth laws during photoelectrochemical and electrochemical conversions, which are chemical reaction and diffusion controlled respectively, caused by the difference in the effective surface area of the electrode. And mathematical models for bubble growth describing the two effects are established. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：86 / 92
页数：7
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