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A new insight into promotion action of Co2+ in Ni-diamond composite electrodeposition
Zhou, Haifei; Du, Nan; Guo, Jingdong; Liu, Shuan
2019-08-01
Source PublicationJOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN1005-0302
Volume35Issue:8Pages:1797-1802
AbstractAnew insight into the promotion action of Co2+ on both particle and metal deposition in Ni-diamond composite electrodeposition system was analyzed according to electrochemical measurements. The results showed that the addition of Co2+ made particles content in deposits increased remarkably. The change of particles content in deposits was related inversely to the change of cathodic zero potential with the increase of the concentration of cobalt sulfate. Zero charge potential of cathode was shifted to much more negative region. The negative shift of the zero potential, combining with positive shift of the zeta potential, increased the electrostatic force between the particle-adsorbed metallic cations and the cathode. It not only benefits to the transportation of particles in solution towards cathode, but also shortens their residence time on cathodic surface. Meanwhile, entry of particles is also promoted. For metals deposition, reduction resistance of metallic cations rises greatly and deposition current at cathodic potentiodynamic polarization decreases after cobalt sulfate has been added into electrolyte. These factors are favorable for increasing particles content in deposits. In addition, physical model of diamond particles deposition state before and after the addition of Co2+ has been discussed. (C) 2019 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
KeywordCobalt sulfate Composite electrodeposition Ni-diamond Zero charge potential Particle content in deposits
Indexed BySCI
Language英语
WOS IDWOS:000470677300034
PublisherJOURNAL MATER SCI TECHNOL
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/80885
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Zhou, Haifei,Du, Nan,Guo, Jingdong,et al. A new insight into promotion action of Co2+ in Ni-diamond composite electrodeposition[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2019,35(8):1797-1802.
APA Zhou, Haifei,Du, Nan,Guo, Jingdong,&Liu, Shuan.(2019).A new insight into promotion action of Co2+ in Ni-diamond composite electrodeposition.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,35(8),1797-1802.
MLA Zhou, Haifei,et al."A new insight into promotion action of Co2+ in Ni-diamond composite electrodeposition".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 35.8(2019):1797-1802.
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