Effect of moisture concentration on electrodeposition of aluminum in dimethylsulfone

The influence of moisture on Al electrodeposition was investigated in 23.3 mol% AlCl 3 –DMSO 2 bath at 403 K. Cyclic voltammetry measurement and electrodeposition at constant current were carried out in baths containing 67–174 ppm moisture. The deposits obtained under 40 mA cm −2 for 1 h was charact...

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Veröffentlicht in:SN applied sciences 2019-01, Vol.1 (1), p.53, Article 53
Hauptverfasser: Kim, Sangjae, Kuroda, Kensuke, Okido, Masazumi
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Okido, Masazumi
description The influence of moisture on Al electrodeposition was investigated in 23.3 mol% AlCl 3 –DMSO 2 bath at 403 K. Cyclic voltammetry measurement and electrodeposition at constant current were carried out in baths containing 67–174 ppm moisture. The deposits obtained under 40 mA cm −2 for 1 h was characterized in terms of their surface appearance, surface microstructure, and cross section in SEM observation, XRD analysis and surface hardness, and film thickness (current efficiency). In addition, NMR spectroscopy was used to clarify the effect of moisture on the relative abundance of Al(DMSO 2 ) 3 3+ and AlCl 4 − species in the bath. When the AlCl 3 –DMSO 2 bath was kept at 403 K in the glove box, its moisture content decreased gradually up to 5 h, and increased between 6 and 72 h with the elapse of heating time. A high current efficiency of c.a. 100% was observed, the low surface hardness was improved, and the surface was uniform for Al deposits obtained after 5 and 6 h or drying when the abundance of Al(DMSO 2 ) 3 3+ was relatively high.
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Cyclic voltammetry measurement and electrodeposition at constant current were carried out in baths containing 67–174 ppm moisture. The deposits obtained under 40 mA cm −2 for 1 h was characterized in terms of their surface appearance, surface microstructure, and cross section in SEM observation, XRD analysis and surface hardness, and film thickness (current efficiency). In addition, NMR spectroscopy was used to clarify the effect of moisture on the relative abundance of Al(DMSO 2 ) 3 3+ and AlCl 4 − species in the bath. When the AlCl 3 –DMSO 2 bath was kept at 403 K in the glove box, its moisture content decreased gradually up to 5 h, and increased between 6 and 72 h with the elapse of heating time. 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Materials (general)</topic><topic>Abundance</topic><topic>Aluminum</topic><topic>Aluminum chloride</topic><topic>Applied and Technical Physics</topic><topic>Aqueous solutions</topic><topic>Baths</topic><topic>Chemistry/Food Science</topic><topic>Current efficiency</topic><topic>Drying</topic><topic>Earth Sciences</topic><topic>Electrodeposition</topic><topic>Electrodes</topic><topic>Engineering</topic><topic>Environment</topic><topic>Film thickness</topic><topic>Hardness</topic><topic>Magnetic resonance spectroscopy</topic><topic>Materials Science</topic><topic>Moisture content</topic><topic>Moisture effects</topic><topic>NMR</topic><topic>NMR spectroscopy</topic><topic>Nuclear magnetic resonance</topic><topic>Relative abundance</topic><topic>Research Article</topic><topic>Scanning electron microscopy</topic><topic>Solvents</topic><topic>Surface hardness</topic><topic>Water content</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kim, Sangjae</creatorcontrib><creatorcontrib>Kuroda, Kensuke</creatorcontrib><creatorcontrib>Okido, Masazumi</creatorcontrib><collection>CrossRef</collection><jtitle>SN applied sciences</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kim, Sangjae</au><au>Kuroda, Kensuke</au><au>Okido, Masazumi</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of moisture concentration on electrodeposition of aluminum in dimethylsulfone</atitle><jtitle>SN applied sciences</jtitle><stitle>SN Appl. 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subjects 4. Materials (general)
Abundance
Aluminum
Aluminum chloride
Applied and Technical Physics
Aqueous solutions
Baths
Chemistry/Food Science
Current efficiency
Drying
Earth Sciences
Electrodeposition
Electrodes
Engineering
Environment
Film thickness
Hardness
Magnetic resonance spectroscopy
Materials Science
Moisture content
Moisture effects
NMR
NMR spectroscopy
Nuclear magnetic resonance
Relative abundance
Research Article
Scanning electron microscopy
Solvents
Surface hardness
Water content
title Effect of moisture concentration on electrodeposition of aluminum in dimethylsulfone
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