Electrochemical study of the effect of oxidation and amorphization of Cr nanoparticles on the co-deposition of Ni-Cr nanocomposite film

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	Electrochemical study of the effect of oxidation and amorphization of Cr nanoparticles on the co-deposition of Ni-Cr nanocomposite film
	Qin, Li Juan; Huang, Yuan Chao; Qin, LJ (reprint author), Chinese Acad Sci, Inst Met Res, Lab Corros & Protect, Shenyang 110016, Peoples R China.
	2017-06-15
发表期刊	JOURNAL OF ELECTROANALYTICAL CHEMISTRY
ISSN	1572-6657
卷号	795 页码:110-115
摘要	The oxidation and amorphous transformation of Cr nanoparticles in a Ni sulfate electrolyte and its subsequent effect on the co-deposition of Ni-Cr was investigated. Transmission electron microscopy (TEM) results revealed the oxidation process of the Cr nanoparticles with increasing soaking time. in addition, the polarization of Ni reduction showed that the amorphous transformation of the Cr nanoparticles shifted the nickel reduction to more negative potentials. Electrochemical impedance spectroscopy with fresh and amorphous Cr nanoparticles verified that the kinetics of nickel electrodeposition changed to a diffusion-controlled process. Amorphous Cr nanoparticles restricted the diffusion of Ni-ads(+), on the cathode, which made nickel reduction more difficult, thereby impairing the incorporation of Cr nanoparticles into the Ni matrix.; The oxidation and amorphous transformation of Cr nanoparticles in a Ni sulfate electrolyte and its subsequent effect on the co-deposition of Ni-Cr was investigated. Transmission electron microscopy (TEM) results revealed the oxidation process of the Cr nanoparticles with increasing soaking time. in addition, the polarization of Ni reduction showed that the amorphous transformation of the Cr nanoparticles shifted the nickel reduction to more negative potentials. Electrochemical impedance spectroscopy with fresh and amorphous Cr nanoparticles verified that the kinetics of nickel electrodeposition changed to a diffusion-controlled process. Amorphous Cr nanoparticles restricted the diffusion of Ni-ads(+), on the cathode, which made nickel reduction more difficult, thereby impairing the incorporation of Cr nanoparticles into the Ni matrix.
部门归属	[qin, li juan ; huang, yuan chao] chinese acad sci, inst met res, lab corros & protect, shenyang 110016, peoples r china ; [huang, yuan chao] univ sci & technol china, coll mat sci & engn, hefei 230026, peoples r china
关键词	Co-deposition Cr Nanoparticles Oxidation Amorphous Transformation
学科领域	Chemistry, Analytical ; Electrochemistry
收录类别	SCI
语种	英语
WOS记录号	WOS:000403117500015
引用统计	被引频次：4[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/78084
专题	中国科学院金属研究所
通讯作者	Qin, LJ (reprint author), Chinese Acad Sci, Inst Met Res, Lab Corros & Protect, Shenyang 110016, Peoples R China.
推荐引用方式 GB/T 7714	Qin, Li Juan,Huang, Yuan Chao,Qin, LJ . Electrochemical study of the effect of oxidation and amorphization of Cr nanoparticles on the co-deposition of Ni-Cr nanocomposite film[J]. JOURNAL OF ELECTROANALYTICAL CHEMISTRY,2017,795:110-115.
APA	Qin, Li Juan,Huang, Yuan Chao,&Qin, LJ .(2017).Electrochemical study of the effect of oxidation and amorphization of Cr nanoparticles on the co-deposition of Ni-Cr nanocomposite film.JOURNAL OF ELECTROANALYTICAL CHEMISTRY,795,110-115.
MLA	Qin, Li Juan,et al."Electrochemical study of the effect of oxidation and amorphization of Cr nanoparticles on the co-deposition of Ni-Cr nanocomposite film".JOURNAL OF ELECTROANALYTICAL CHEMISTRY 795(2017):110-115.