Double layer effects on metal nucleation in deep eutectic solvents

被引：133

作者：

Abbott, Andrew P. ^{[1
]}

Barron, John C. ^{[1
]}

Frisch, Gero ^{[1
]}

Gurman, Stephen ^{[2
]}

Ryder, Karl S. ^{[1
]}

Fernando Silva, A. ^{[3
]}

机构：

[1] Univ Leicester, Dept Chem, Leicester LE1 7RH, Leics, England

[2] Univ Leicester, Dept Phys, Leicester LE1 7RH, Leics, England

[3] Fac Ciencias, Dept Quim, P-400 Oporto, Portugal

来源：

PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2011年 / 13卷 / 21期

关键词：

TEMPERATURE MOLTEN-SALT; IONIC LIQUIDS; CHOLINE CHLORIDE; HOLE THEORY; ELECTRODEPOSITION; ALUMINUM; ZINC; NICKEL; ALLOYS; AIR;

D O I：

10.1039/c0cp02244f

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The electrodeposition of zinc has been studied in two deep eutectic solvents. Unlike the metals studied to date in these liquids, zinc electrodeposition is not mass transport limited and the morphology of the deposit differs in the two liquids. This study shows that changing the concentration of solute affects the physical properties of the liquid to different extents although this is found to not effect the morphology of the metal deposited. EXAFS was used to show that the speciation of zinc was the same in both liquids. Double layer capacitance studies showed differences between the two liquids and these are proposed to be due to the adsorption of a species on the electrode which is thought to be chloride. The differences in zinc morphology is attributed to blocking of certain crystal faces leading to deposition of small platelet shaped crystals in the glycol based liquid.

引用

页码：10224 / 10231

页数：8

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