Controlled Orientation of Asymmetric Copper Deposits on Carbon Microobjects by Bipolar Electrochemistry

被引：40

作者：

Fattah, Zahra ^{[1
,2
]}

Garrigue, Patrick ^{[1
,2
]}

Lapeyre, Veronique ^{[1
,2
]}

Kuhn, Alexander ^{[1
,2
]}

Bouffier, Laurent ^{[1
,2
]}

机构：

[1] Univ Bordeaux, ISM, UMR 5255, F-33400 Talence, France

[2] CNRS, ISM, UMR 5255, F-33400 Talence, France

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2012年 / 116卷 / 41期

关键词：

CATALYTIC NANOMOTORS; JANUS NANOPARTICLES; BULK SYNTHESIS; ELECTRODES; PROPULSION; BEHAVIOR; SURFACE; OBJECTS;

D O I：

10.1021/jp3064118

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：

Asymmetric particles of various chemical compositions have attracted great attention because of their application potential in different areas, ranging from photo-splitting of water to autonomous swimmers. In this context, the spatial arrangement of the different components can be of major importance. We report here a bulk procedure based on bipolar electrochemistry that allows generating asymmetric particles with a highly controlled spatial orientation of a metal deposit on a carbon substrate. Two fundamentally different topologies of the metal deposit can be obtained as a function of controllable experimental parameters like the orientation and amplitude of the electric field as well as the viscosity of the medium.

引用

页码：22021 / 22027

页数：7

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