Electrodeposition of CuZn from Chlorozincate Ionic Liquid: From Hollow Tubes to Segmented Nanowires

被引：31

作者：

Hsieh, Yi-Ting ^{[1
]}

Tsai, Ren-Wei ^{[1
]}

Su, Chung-Jui ^{[1
]}

Sun, I-Wen ^{[1
]}

机构：

[1] Natl Cheng Kung Univ, Dept Chem, Tainan 701, Taiwan

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2014年 / 118卷 / 38期

关键词：

ELECTROCHEMICAL REDUCTION; ALKALINE-SOLUTION; TEMPLATE-FREE; WIRE ARRAYS; COPPER-ZINC; ALUMINUM; GROWTH; NANOSTRUCTURES; NITRATE; NANOCRYSTALS;

D O I：

10.1021/jp506833s

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 growth of hollow tubes, nanowire array, and segmented porous nanowire arrays made of Cu-Zn alloys in a Lewis acidic ZnCl2-1-ethyl-3-methylimidazolium chloride ionic liquid via direct electrodeposition without the need for a template is presented. The formation of each of type of structure is described. Hollow tubes result from the uneven overpotential gradient created at low Cu(I) concentration and low applied deposition overpotential. Nanowire arrays form under mass-transport-limited conditions, in which the ionic liquid speciation plays an important role. Segmented porous nanowire arrays are obtained by increasing the Cu(I) concentration to enhance the concentration profile vibration near the growth surface. The electrodeposited nanowire arrays show very good efficiency for the electrocatalytic reduction of nitrate ions in alkaline aqueous solution.

引用

页码：22347 / 22355

页数：9

共 44 条

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