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Electrochemical Synthesis of Antimony Nanowires and Analysis of Diffusion Layers

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Synthesis of an array of antimony nanowires was performed by electrodeposition within a porous polycarbonate membrane. The sizes of pores range from 30 to 400 nm in diameter and their densities vary from 2 × 10+6 to 2 × 10+9 pores/cm2. To obtain optimal conditions for nanowire preparation, plating behavior was investigated by a potentiostatic method with two types (continued or pulsed) of polarization. The chronoamperometry revealed that responses depend on the type of polarization and on the pore density of the membrane. With high-density membranes, the diffusion layers of each individual pore immediately overlap when they reach the external part of the membrane. This leads to an abrupt decrease of current intensity. This phenomenon is not observed with low-density membranes because of the greater distance between pores. This mechanism, which was investigated in antimony nanowire plating, is applicable to electrodeposition of other types of materials.
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Keywords: ANTIMONY NANOWIRES; DIFFUSION LAYER; ELECTRODEPOSITION; POLYCARBONATE MEMBRANE

Document Type: Research Article

Affiliations: D.T.I., C.N.R.S. – U.M.R. 6107, Université de Reims, B.P. 1039, 51687 Reims cedex 02, France

Publication date: 2001-09-01

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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