Behavior of Bubbles on Electrodes with Hierarchical Microporous Structures and Different Wettability
文献类型：期刊论文
| 作者 | Liu Meng1; Guo Xiang-Fei1; Wang Jing-Ming1; Jiang Lei1,2 |
| 刊名 | ACTA PHYSICO-CHIMICA SINICA
 |
| 出版日期 | 2012-12-01 |
| 卷号 | 28期号:12页码:2931-2938 |
| 关键词 | Porous Structure Hydrophobicity Electrolysis Pin Bubble Drag Reduction |
| ISSN号 | 1000-6818 |
| DOI | 10.3866/PKU.WHXB201209262 |
| 英文摘要 | We have prepared copper electrodes by the hierarchical micropore hydrogen template method. By changing the plating current density and plating time, we can effectively control the size and distribution of the micropores. In addition, we altered the surface chemical composition to obtain electrodes with different wettability. The production and behavior of bubbles on the electrodes with different microstructures and wettability during the process of water electrolysis was investigated. The experimental results indicated that, compared with the hydrophilic porous electrode, the bubbles were able to pin onto the hydrophobic electrode more easily, and they tended to coalesce to form a stable gas film. The effect of the porous structure on the behavior of bubbles was more significant for hydrophilic electrodes than hydrophobic electrodes. The electrodes with hierarchical microporous structures preferred to produce more bubbles than those without microporous structures. The production rate of bubbles on the electrodes with hierarchical microporous structure was faster than that on the electrodes without. Furthermore, porous hydrophilic electrodes with large pore sizes could generate bubbles faster and pin smaller bubbles than electrodes with small pore sizes. We believe that these results can provide theoretical proof for the design of the electrodes with attached micro-bubbles to reduce drag resistance. |
| 语种 | 英语 |
| WOS记录号 | WOS:000311938700025 |
| 出版者 | PEKING UNIV PRESS |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/49543]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Wang Jing-Ming |
| 作者单位 | 1.Beihang Univ, Sch Chem & Environm, Beijing 100191, Peoples R China 2.Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu Meng,Guo Xiang-Fei,Wang Jing-Ming,et al. Behavior of Bubbles on Electrodes with Hierarchical Microporous Structures and Different Wettability[J]. ACTA PHYSICO-CHIMICA SINICA,2012,28(12):2931-2938. |
| APA | Liu Meng,Guo Xiang-Fei,Wang Jing-Ming,&Jiang Lei.(2012).Behavior of Bubbles on Electrodes with Hierarchical Microporous Structures and Different Wettability.ACTA PHYSICO-CHIMICA SINICA,28(12),2931-2938. |
| MLA | Liu Meng,et al."Behavior of Bubbles on Electrodes with Hierarchical Microporous Structures and Different Wettability".ACTA PHYSICO-CHIMICA SINICA 28.12(2012):2931-2938. |
入库方式： OAI收割
来源：化学研究所
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