Radii of Microelectrodes Undervalued from Steady-state Currents
スポンサーリンク
概要
- 論文の詳細を見る
We examined Saitos equation for diffusion-controlled current at a microdisk electrode. We measured steady-state currents of a ferrocenyl derivative at glass-coated Pt electrodes with various sizes, of which radii were evaluated with a scanning electron microscope. The relation between the currents and the radii less than 2 μm deviated downward from the proportionality, whereas the proportionality was maintained accurately for the radii more than 5 μm. Radii of invisible electrodes which have been so far evaluated from the steady-state currents should be smaller than the geometrical values. The lower deviation of the proportionality was explained in terms of memory diffusion of the Ficks first law under the steady state.
- 2011-09-30
著者
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Chen Jingyuan
Univ. Fukui
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Chen Jingyuan
Department Of Applied Physics Department Of Applied Chemistry And Biotechnology University Of Fukui
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Aoki Koichi
Univ. Fukui
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Koichi Aoki
Department of Applied Physics, University of Fukui
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Haruki Takeuchi
Department of Applied Physics, University of Fukui
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Jingyuan Chen
Department of Applied Physics, University of Fukui
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Toyohiko Nishiumi
Department of Applied Physics, University of Fukui
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NISHIUMI Toyohiko
Univ. Fukui
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Aoki Koichi
Appl. Phys Univ. Fukui
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Aoki Koichi
Department Of Applied Physics Fukui University
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Nishiumi Toyohiko
Department Of Applied Physics University Of Fukui
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TAKEUCHI Haruki
Department of Applied Physics, University of Fukui
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Takeuchi Haruki
Department Of Applied Physics University Of Fukui
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