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

被引:66
作者
Chen, RZ [1 ]
Xu, DS [1 ]
Guo, GL [1 ]
Gui, LL [1 ]
机构
[1] Peking Univ, Inst Phys Chem, State Key Lab Struct Chem Unstable & Stable Speci, Beijing 100871, Peoples R China
关键词
D O I
10.1039/b201007k
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
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.
引用
收藏
页码:2435 / 2438
页数:4
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