Effects of synthetic conditions of pulse galvanostatic method on electroactivity of polyaniline①
来源期刊：中南大学学报(英文版)2005年第2期
论文作者：周海晖 焦树强 李松林 罗胜联 魏万之 旷亚非
文章页码：117 - 122
Key words：polyaniline; pulse galvanostatic method; nano-fiber; morphology; electroactivity
Abstract: Nano-fibrous polyaniline was synthesized on stainless steel electrode in 0.5 mol·L-1 H2SO4 solution by pulse galvanostatic method. The effects of synthetic conditions of pulse galvanostatic method on the electroactivity of polyaniline were investigated. The results show that the electroactivity of polyaniline film strongly depends on the synthetic conditions, such as the ratio of“on time”to“off time”(ton/toff), frequency, monomer concentration, temperature and mean current density. Different electroactivities of polyaniline are caused by different morphologies of polyaniline. The nano-fibrous polyaniline has higher electroactivity than polyaniline with other morphologies. Under the following conditions: mean current density of pulse galvanostatic method 1 3 mA·cm-2,ton/toff 1, frequency 200 Hz, monomer concentration 0.3 mol·L-1and temperature 20℃, nano-fibrous polyaniline film with the highest electroactivity can be obtained.
基金信息：the National Natural Science Foundation
