Interfacial assistant role of amine additives on zinc electrodeposition from deep eutectic solvents: an in situ X-ray imaging investigation
Song, YX; Tang, J; Hu, JG; Yang, H; Gu, WM; Fu, YN; Ji, XB
2017
发表期刊ELECTROCHIMICA ACTA
ISSN0013-4686
卷号240期号:-页码:90-97
文章类型期刊论文
摘要The morphological and interfacial evolution processes of electrodeposited zinc were studied from deep eutectic solvents based on choline chloride (ChCl) and ethylene glycol (EG) by using the synchrotron radiation X-ray imaging. The effect of three amine additives including thiourea, aqueous ammonia and ethylenediamine on zinc deposits was compared, respectively. Raman spectra show that the presence of ammonia or ethylenediamine results in the formation of chlorozinc complexes with low chloride coordination number besides of the ZnCl42- species. The voltammetric and chronopotentiogram behaviors were assessed to understand the effect of amine additives on the deposition mechanism of zinc. The results indicate that the initial nucleation of zinc can be inhibited by the adsorption of thiourea on the electrode surface, whereas the addition of aqueous ammonia and ethylenediamine could improve the mass transport of active Zn species towards the cathode surface. The in situ X-ray imaging reveals the evolution process of mossy zinc deposits from the deep eutectic electrolytes without additive. The addition of thiourea and ethylenediamine can effectively modify the interfacial morphology of deposited Zn, and the compact layer-like films appear along the lateral direction of electrode. However, in the presence of ammonia, the scattered dendritic deposits are observed accompanying with zinc electrodeposition process. (C) 2017 Elsevier Ltd. All rights reserved.
关键词Chloride Molten-salt Ionic Liquids Choline Chloride Ethylene-glycol Films Morphology Coatings System Alloy Xrd
DOI10.1016/j.electacta.2017.04.063
关键词[WOS]CHLORIDE MOLTEN-SALT ; IONIC LIQUIDS ; CHOLINE CHLORIDE ; ETHYLENE-GLYCOL ; FILMS ; MORPHOLOGY ; COATINGS ; SYSTEM ; ALLOY ; XRD
收录类别SCI
语种英语
WOS记录号WOS:000402444800011
引用统计
被引频次:3[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/28706
专题中科院上海应用物理研究所2011-2018年
推荐引用方式
GB/T 7714
Song, YX,Tang, J,Hu, JG,et al. Interfacial assistant role of amine additives on zinc electrodeposition from deep eutectic solvents: an in situ X-ray imaging investigation[J]. ELECTROCHIMICA ACTA,2017,240(-):90-97.
APA Song, YX.,Tang, J.,Hu, JG.,Yang, H.,Gu, WM.,...&Ji, XB.(2017).Interfacial assistant role of amine additives on zinc electrodeposition from deep eutectic solvents: an in situ X-ray imaging investigation.ELECTROCHIMICA ACTA,240(-),90-97.
MLA Song, YX,et al."Interfacial assistant role of amine additives on zinc electrodeposition from deep eutectic solvents: an in situ X-ray imaging investigation".ELECTROCHIMICA ACTA 240.-(2017):90-97.
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