Hydrogen-assisted stabilization of Ni nanowires in solution

被引:39
作者
Kiguchi, M
Konishi, T
Murakoshi, K [1 ]
机构
[1] Hokkaido Univ, Grad Sch Sci, Dept Chem, Sapporo, Hokkaido 0600810, Japan
[2] Japan Sci & Technol Agcy, PRESTO, Sapporo, Hokkaido 0600810, Japan
关键词
D O I
10.1063/1.2001142
中图分类号
O59 [应用物理学];
学科分类号
摘要
We have studied conductance characteristics of mechanically fabricated Ni nanoconstrictions under controlling electrochemical potential and pH of the electrolyte. The conductance histogram showed a clear feature peaked at 1-1.5 G(0) (G(0)=2e(2)/h) when the potential of the constriction was kept at more negative potential than -900 mV versus Ag/AgCl at pH=3.7. A comparable feature also appeared at a more positive potential when a lower pH solution was used. We have revealed that Ni monoatomic contact or monoatomic wire can be stabilized in solution at room temperature under the hydrogen evolution. (c) 2005 American Institute of Physics.
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页数:3
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