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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
Source PublicationJOURNAL OF ELECTROANALYTICAL CHEMISTRY
ISSN1572-6657
Volume795Pages:110-115
AbstractThe 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.
description.department[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
KeywordCo-deposition Cr Nanoparticles Oxidation Amorphous Transformation
Subject AreaChemistry, Analytical ; Electrochemistry
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/78084
Collection中国科学院金属研究所
Corresponding AuthorQin, LJ (reprint author), Chinese Acad Sci, Inst Met Res, Lab Corros & Protect, Shenyang 110016, Peoples R China.
Recommended Citation
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.
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