引用本文:
孔景临, 薛宽宏, 何春建, 邵颖, 陈巧玲. 镍纳米线电极的交流阻抗研究[J]. 应用化学,
2002, 19(4): 313-316.
Citation: KONG Jing-Lin, XUE Kuan-Hong, HE Chun-Jian, SHAO Ying, CHEN Qiao-Ling. AC Impedance of a Nickel Nanowire Electrode[J]. Chinese Journal of Applied Chemistry, 2002, 19(4): 313-316.
Citation: KONG Jing-Lin, XUE Kuan-Hong, HE Chun-Jian, SHAO Ying, CHEN Qiao-Ling. AC Impedance of a Nickel Nanowire Electrode[J]. Chinese Journal of Applied Chemistry, 2002, 19(4): 313-316.
镍纳米线电极的交流阻抗研究
English
AC Impedance of a Nickel Nanowire Electrode
Abstract:
Electrochemical impedance spectra of a nickel nanowire electrode at different applied potentials and their fitting results are given. The experimental results revealed that the electro chemical processes on the surface of the electrode were apparently influenced by the applied potentials. The electrochemical oxidation rate of Ni(Ⅱ) to Ni(Ⅲ) increased remarkably with the applied potential at a range of 0.10~0.40 V(vs.Ag/AgCl(1 mol/L KCl)). When the applied potential was higher than 0.4 V, the oxygen evolution reaction occurred simultaneously. The AC impedance measurements on a nickel bulk electrode and a nickel nanowire electrode under the same conditions showed the latter had much greater electrochemical activity and much faster reaction rate in the surface processes.
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Key words:
- nickel nanowires
- / AC impedance
- / electrode
- / secondary battery
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