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Citation: DING Ke-Qiang, WANG Qing-Fei, QIU Li, CUI Wei-Zhen, TONG Ru-Ting, WANG Xin-Kui, SHAO Hui-Bo. The Effect of Polarization Time on the Schiff Base Self-assembled Monolayer[J]. Chinese Journal of Applied Chemistry, ;2002, 19(9): 911-913. shu

The Effect of Polarization Time on the Schiff Base Self-assembled Monolayer

1.
a Chemistry College, Hebei Teachers'University, Shijiazhuang 050016;
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b Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan;
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c Department of Chemistry, Capital Normal University, Beijing

Corresponding author: DING Ke-Qiang,
Received Date: 17 January 2002
Available Online: 11 April 2002
Fund Project: 国家自然科学基金资助项目(29973026) (29973026)

The effect of polarization time on the schiff base self-assembled monolayer containing hydrosulfo group has been investigated by CV and ac impedance measurements. The results showed that, when the potential of -0.87 V(vs. SCE) was applied on the monolayer, the electrochemical charge transfer resistance R_ct originated from the reduction of C=N increased with the polarization time within 4 min and then decreased. This phenomenon may be related to the relationship between the C=N group and the structure of the Schiff base self-assembled monolayer.
- schiff base,
- self-assembled monolayer,
- polarization time,
- a.c. impedance
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