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Deposit structure and kinetic behavior of metal electrodeposition under enhanced gravity-induced convection
Wang, Mingyong1; Wang, Zhi1; Guo, Zhancheng2
2015-05-01
Source PublicationJOURNAL OF ELECTROANALYTICAL CHEMISTRY
ISSN1572-6657
Volume744Pages:25-31
AbstractGravity-induced convection has significant effect on mass transport during metal electrodeposition. The effects of gravity-induced convection on deposit structure and kinetic behavior of metal electrodeposition were studied. It was found that copper powders and copper foils were easily electrodeposited by inhibiting and enhancing gravity-induced convection, respectively. Current efficiency was also increased from 31.5% to 92.7% due to enhancing gravity-induced convection. Double logarithm relationships between limiting current density (id) and gravity coefficient (G) for both copper and nickel electrodeposition were obtained at various metal ion concentrations. It was confirmed that diffusion coefficient was about 2.25-3.47 x 10(-6) cm(2) s(-1) and almost independent on gravity acceleration. However, diffusion layer thickness of copper electrodeposition in 0.01 M CuSO4 solution was only 0.82 x 10(-2) cm under G value of 354 due to larger flow velocity, and was much lower than that under normal gravity condition (3.41 x 10(-2) cm). Therefore, mass transport of metal electrodeposition was promoted and limiting current density was enlarged by enhancing gravity-induced convection. (C) 2015 Elsevier B.V. All rights reserved.
KeywordMetal Electrodeposition Convection Gravity Limiting Current Density Diffusion Layer Thickness
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1016/j.jelechem.2015.03.003
Indexed BySCI
Language英语
WOS KeywordMAGNETIC-FIELD ; CENTRIFUGAL FIELDS ; COPPER ; DIFFUSION ; FORCES ; ELECTROLYSIS ; MECHANISM ; CU
WOS Research AreaChemistry ; Electrochemistry
WOS SubjectChemistry, Analytical ; Electrochemistry
WOS IDWOS:000353850100004
Citation statistics
Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/16753
Collection湿法冶金清洁生产技术国家工程实验室
Affiliation1.Chinese Acad Sci, Natl Engn Lab Hydromet Cleaner Prod Technol, Key Lab Green Proc & Engn, Inst Proc Engn, Beijing 100190, Peoples R China
2.Univ Sci & Technol Beijing, State Key Lab Adv Met, Beijing 100083, Peoples R China
Recommended Citation
GB/T 7714
Wang, Mingyong,Wang, Zhi,Guo, Zhancheng. Deposit structure and kinetic behavior of metal electrodeposition under enhanced gravity-induced convection[J]. JOURNAL OF ELECTROANALYTICAL CHEMISTRY,2015,744:25-31.
APA Wang, Mingyong,Wang, Zhi,&Guo, Zhancheng.(2015).Deposit structure and kinetic behavior of metal electrodeposition under enhanced gravity-induced convection.JOURNAL OF ELECTROANALYTICAL CHEMISTRY,744,25-31.
MLA Wang, Mingyong,et al."Deposit structure and kinetic behavior of metal electrodeposition under enhanced gravity-induced convection".JOURNAL OF ELECTROANALYTICAL CHEMISTRY 744(2015):25-31.
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