Influence of cathodic overpotential and zincate concentration on zinc deposition in alkaline solution | |
Hong, Weichen1; Jia, Zhijun2; Wang, Baoguo1 | |
刊名 | JOURNAL OF APPLIED ELECTROCHEMISTRY
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2016-10-01 | |
卷号 | 46期号:10页码:1085-1090 |
关键词 | Zinc-air batteries Zinc anode Cathodic overpotential Zincate concentration Mechanism of zinc deposition |
ISSN号 | 0021-891X |
英文摘要 | Understanding zinc deposition during charging is important for the development of electrically rechargeable zinc-air batteries. For this purpose, the influences of cathodic overpotential and zincate concentration on zinc deposition in 6 M KOH solution were investigated by electrochemical and morphology characterization. When the zincate concentration is lower than 0.1 M, or the cathodic overpotential is more positive than -30 mV, the first charge-transfer reaction (Zn(OH)(2) + e(-) -> Zn(OH) + OH-) tends to be the rate-determining step. The second charge-transfer reaction (Zn(OH) + e(-) -> Zn + OH-) becomes the rate-determining step at zincate concentration higher than 0.2 M and cathodic overpotentials larger than -50 mV. A low zincate concentration and small cathodic overpotential help suppress dendritic zinc deposition. These results will promote the performance of zinc anodes during the charging of zinc-air batteries. |
WOS标题词 | Science & Technology ; Physical Sciences |
类目[WOS] | Electrochemistry |
研究领域[WOS] | Electrochemistry |
关键词[WOS] | ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY ; AIR BATTERIES ; BIFUNCTIONAL ELECTROCATALYST ; KINETIC-ANALYSIS ; ZN-AIR ; CELL ; ELECTROLYTES ; DISSOLUTION ; OXIDATION ; COMPOSITE |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000382705700008 |
内容类型 | 期刊论文 |
源URL | [http://ir.ipe.ac.cn/handle/122111/21451] ![]() |
专题 | 过程工程研究所_湿法冶金清洁生产技术国家工程实验室 |
作者单位 | 1.Tsinghua Univ, Dept Chem Engn, Beijing 100084, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China |
推荐引用方式 GB/T 7714 | Hong, Weichen,Jia, Zhijun,Wang, Baoguo. Influence of cathodic overpotential and zincate concentration on zinc deposition in alkaline solution[J]. JOURNAL OF APPLIED ELECTROCHEMISTRY,2016,46(10):1085-1090. |
APA | Hong, Weichen,Jia, Zhijun,&Wang, Baoguo.(2016).Influence of cathodic overpotential and zincate concentration on zinc deposition in alkaline solution.JOURNAL OF APPLIED ELECTROCHEMISTRY,46(10),1085-1090. |
MLA | Hong, Weichen,et al."Influence of cathodic overpotential and zincate concentration on zinc deposition in alkaline solution".JOURNAL OF APPLIED ELECTROCHEMISTRY 46.10(2016):1085-1090. |
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