Effect of glassy carbon, gold, and nickel electrodes on nickel electrocrystallization in an industrial electrolyte

doi:10.1016/j.surfcoat.2019.04.072

	Effect of glassy carbon, gold, and nickel electrodes on nickel electrocrystallization in an industrial electrolyte
	Xu, Yangtao 1,2; Huang, Kai 1,2; Zhu, Zhenxu 1,2; Xia, Tiandong1,2
	2019-07-25
发表期刊	SURFACE & COATINGS TECHNOLOGY
ISSN	0257-8972
卷号	370 页码:1-10
摘要	The effects of three different substrate materials (glassy carbon, gold, and nickel electrodes) on the electrocrystallization behavior of nanocrystalline nickel in an industrial electrolyte with complex compositions were studied by cyclic voltammetry (CV), single potential step chronoamperometry. The CV results indicated that the initial deposition potentials of nickel shift to the positive direction in the order glassy carbon < gold < nickel electrodes, while the nickel deposition overpotential decreased at the same time. Chronoarnperometry results indicated that from the glassy carbon to gold and nickel electrodes, the adhesion of nickel nanoparticles on the electrodes increased, nucleation relaxation time became shorter, and the number of nuclei decreased. As the deposition potential is negatively shifted and the deposition time is prolonged, the I-t curves for the nickel and gold electrodes are more stable and reliable than those from the glassy carbon electrodes. The chronoamperometric study combined with SEM revealed that the nucleation mechanism of nickel on different substrates changed from three-dimensional progressive to instantaneous, but the time of the transition is different. When the deposition time is 100 s, the nanocrystalline nickel deposited on the nickel and gold electrodes has good integrity and uniformity. This was also confirmed in studies using atomic force microscopy and transmission electron microscopy. Moreover, the results of transmission electron microscopy (TEM) show that there are many twins in the nanocrystalline nickel layer deposited on the gold electrode at -0.95 V, 100 s. The electrocrystallization process of nickel is complicated by the complex ionic components in the industrial electrolyte of the nickel sulfide soluble anode/mixed acid system.
关键词	Nickel electrocrystallization Industrial electrolyte Glassy carbon electrode Gold electrode Nickel electrode
DOI	10.1016/j.surfcoat.2019.04.072
收录类别	SCI ; SCIE
语种	英语
WOS研究方向	Materials Science ; Physics
WOS类目	Materials Science, Coatings & Films ; Physics, Applied
WOS记录号	WOS:000471083100001
出版者	ELSEVIER SCIENCE SA
EI入藏号	20191806856572
EI主题词	Nickel metallography
EI分类号	504.3 Heavy Metal Mines - 531.2 Metallography - 602.2 Mechanical Transmissions - 741.3 Optical Devices and Systems - 761 Nanotechnology - 801.4.1 Electrochemistry - 802.3 Chemical Operations - 804 Chemical Products Generally - 812.3 Glass - 933.1.2 Crystal Growth
引用统计	被引频次：5[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/31710
专题	材料科学与工程学院兰州理工大学
通讯作者	Huang, Kai
作者单位	1.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonerrous Meta, Lanzhou 730050, Gansu, Peoples R China; 2.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Gansu, Peoples R China
第一作者单位	兰州理工大学; 材料科学与工程学院
通讯作者单位	兰州理工大学; 材料科学与工程学院
第一作者的第一单位	兰州理工大学
推荐引用方式 GB/T 7714	Xu, Yangtao,Huang, Kai,Zhu, Zhenxu,et al. Effect of glassy carbon, gold, and nickel electrodes on nickel electrocrystallization in an industrial electrolyte[J]. SURFACE & COATINGS TECHNOLOGY,2019,370:1-10.
APA	Xu, Yangtao,Huang, Kai,Zhu, Zhenxu,&Xia, Tiandong.(2019).Effect of glassy carbon, gold, and nickel electrodes on nickel electrocrystallization in an industrial electrolyte.SURFACE & COATINGS TECHNOLOGY,370,1-10.
MLA	Xu, Yangtao,et al."Effect of glassy carbon, gold, and nickel electrodes on nickel electrocrystallization in an industrial electrolyte".SURFACE & COATINGS TECHNOLOGY 370(2019):1-10.

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