A new insight into promotion action of Co2+ in Ni-diamond composite electrodeposition

doi:10.1016/j.jmst.2019.03.019

CORC > 金属研究所 > 中国科学院金属研究所

	A new insight into promotion action of Co2+ in Ni-diamond composite electrodeposition
	Zhou, Haifei 1; Du, Nan 2; Guo, Jingdong 3; Liu, Shuan 4
刊名	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
	2019-08-01
卷号	35 期号:8 页码:1797-1802
关键词	Cobalt sulfate Composite electrodeposition Ni-diamond Zero charge potential Particle content in deposits
ISSN号	1005-0302
DOI	10.1016/j.jmst.2019.03.019
通讯作者	Zhou, Haifei(zhouhf@alum.imr.ac.cn)
英文摘要	Anew 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.
资助项目	State Grid Scientific and Technological Research Program of China[5211DS17001X]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	JOURNAL MATER SCI TECHNOL
WOS记录号	WOS:000470677300034
资助机构	State Grid Scientific and Technological Research Program of China
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/133735]
专题	金属研究所_中国科学院金属研究所
通讯作者	Zhou, Haifei
作者单位	1.Zhejiang Elect Power Corp Res Inst, Hangzhou 310014, Zhejiang, Peoples R China 2.Nanchang Hangkong Univ, Nanchang 330063, Jiangxi, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China 4.Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Zhejiang, Peoples R China
推荐引用方式 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.