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Modulation of active Cr(III) complexes by bath preparation to adjust Cr(III) electrodeposition
Li, Lei1,2; Wang, Zhi1; Wang, Ming-yong1; Zhang, Yi1
2013-09-01
Source PublicationINTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
ISSN1674-4799
Volume20Issue:9Pages:902-908
AbstractThe preparation process of the Cr(III) bath was studied based on a perspective of accelerating the formation of active Cr(III) complexes. The results of ultraviolet-visible absorption spectroscopy (UV-Vis) and electrodeposition showed that active Cr(III) complexes in the bath prepared at room temperature in several days were rare for depositing chromium. The increase of heating temperature, time, and pH value during the bath preparation promoted the formation of active Cr(III) complexes. The chromium deposition rate increased with the concentration of active Cr(III) complexes increasing. Increasing the heating temperature from 60 to 96A degrees C, the chromium deposition rate increased from 0.40 to 0.71 mu m/min. When the concentration of active Cr(III) complexes increased, the grain size of Cr coatings increased, and the carbon content of the coating decreased. It is deduced that Cr(H2O)(4)(OH)L2+ (L is an organic ligand, and its valence is omitted) is a primary active Cr(III) complex.
KeywordChromium Complexes Electrodeposition Complexation Coatings Grain Size
SubtypeArticle
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
DOI10.1007/s12613-013-0813-5
Indexed BySCI
Language英语
WOS KeywordTRIVALENT CHROMIUM ; FORMIC-ACID ; MECHANISM ; ELECTROLYTES ; KINETICS ; CORROSION ; CHEMISTRY
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering ; Mining & Mineral Processing
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Mining & Mineral Processing
WOS IDWOS:000324097300013
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Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/13311
Collection研究所(批量导入)
Affiliation1.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Coll Chem & Chem Engn, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Li, Lei,Wang, Zhi,Wang, Ming-yong,et al. Modulation of active Cr(III) complexes by bath preparation to adjust Cr(III) electrodeposition[J]. INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS,2013,20(9):902-908.
APA Li, Lei,Wang, Zhi,Wang, Ming-yong,&Zhang, Yi.(2013).Modulation of active Cr(III) complexes by bath preparation to adjust Cr(III) electrodeposition.INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS,20(9),902-908.
MLA Li, Lei,et al."Modulation of active Cr(III) complexes by bath preparation to adjust Cr(III) electrodeposition".INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS 20.9(2013):902-908.
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