Silver telluride nanowires prepared by dc electrodeposition in porous anodic alumina templates

Ruizhi Chen; Dongsheng Xu; Guolin Guo; Linlin Gui

doi:10.1039/B201007K

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Ruizhi Chen,^a Dongsheng Xu,*^a Guolin Guo*^a and Linlin Gui^a

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* Corresponding authors

^a State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Physical Chemistry, Peking University, Beijing, P. R. China
E-mail: dsxu@chem.pku.edu.cn
Fax: 86-10-62753937

Abstract

Silver telluride nanowire arrays were synthesized by cathodic electrolysis into porous anodic alumina membranes from dimethyl sulfoxide (DMSO) solutions containing 0.1 M NaNO₃, 5.0 mM AgNO₃ and 6.0 mM TeCl₄. XRD and SAED patterns of the nanowires were indexed to be a monoclinic structure of Ag₂Te. TEM images show that the nanowires have smooth surfaces with uniform diameters. Near stoichiometric Ag₂Te nanowires were obtained for potentials between −0.55 and −0.65 V vs. Ag/AgCl. Furthermore, the composition of the nanowires can be controlled continuously from Ag-rich to Te-rich mainly by changing the concentration of TeCl₄ in the solutions.

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Article information

DOI: https://doi.org/10.1039/B201007K
Article type: Paper
Submitted: 28 Jan 2002
Accepted: 12 Apr 2002
First published: 15 May 2002

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J. Mater. Chem., 2002,12, 2435-2438

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