【摘 要】
：
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 con
【机 构】
：
College of Chemistry and Chemical Engineering,State Key Laboratory of Powder Metallurgy,State Key La
【基金项目】
：
the State Key Laboratory for Powder Metallurgy
论文部分内容阅读
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-1 and temperature 20 ℃, nano-fibrous polyaniline film with the highest electroactivity can be obtained.
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