Concentration profile of dissolved gas during hydrogen gas evolution: an optical approach

被引：16

作者：

Ando, Kota ^{[1
]}

Uchimoto, Yoshiharu ^{[2
]}

Nakajima, Takashi ^{[1
]}

机构：

[1] Kyoto Univ, Inst Adv Energy, Uji, Kyoto 6110011, Japan

[2] Kyoto Univ, Grad Sch Human & Environm Studies, Sakyo Ku, Kyoto 6068501, Japan

来源：

CHEMICAL COMMUNICATIONS | 2020年 / 56卷 / 92期

关键词：

BUBBLE FORMATION; ELECTROLYSIS; NUCLEATION;

D O I：

10.1039/d0cc05695b

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We develop an optical image tracking technique for the simultaneous observation of a wide area in proximity to the electrode, and study the growth of bubbles during hydrogen gas evolution in alkaline water electrolysis. Using a diffusion model we can successfully extract the concentration profile of dissolved hydrogen gas as a function of distance from the electrode. The obtained concentrations agree well with the values by the electrochemical method.

引用

页码：14483 / 14486

页数：4

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