Electrodeposition of CuZn from chlorozincate ionic liquid: From hollow tubes to segmented nanowires

Yi Ting Hsieh; Ren Wei Tsai; Chung Jui Su; I. Wen Sun

doi:10.1021/jp506833s

Electrodeposition of CuZn from chlorozincate ionic liquid: From hollow tubes to segmented nanowires

Yi Ting Hsieh, Ren Wei Tsai, Chung Jui Su, I. Wen Sun

Department of Chemistry

Research output: Contribution to journal › Article › peer-review

34 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	22347-22355
Number of pages	9
Journal	Journal of Physical Chemistry C
Volume	118
Issue number	38
DOIs	https://doi.org/10.1021/jp506833s
Publication status	Published - 2014 Sept 25

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
General Energy
Physical and Theoretical Chemistry
Surfaces, Coatings and Films

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10.1021/jp506833s

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title = "Electrodeposition of CuZn from chlorozincate ionic liquid: From hollow tubes to segmented nanowires",

abstract = "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.",

author = "Hsieh, {Yi Ting} and Tsai, {Ren Wei} and Su, {Chung Jui} and Sun, {I. Wen}",

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year = "2014",

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doi = "10.1021/jp506833s",

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T1 - Electrodeposition of CuZn from chlorozincate ionic liquid

T2 - From hollow tubes to segmented nanowires

AU - Hsieh, Yi Ting

AU - Tsai, Ren Wei

AU - Su, Chung Jui

AU - Sun, I. Wen

PY - 2014/9/25

Y1 - 2014/9/25

N2 - 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.

AB - 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.

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Electrodeposition of CuZn from chlorozincate ionic liquid: From hollow tubes to segmented nanowires

Abstract

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