摘要
本文研究了还原态聚苯胺修饰电极的光电化学。通过不同基底电极、饱和气氛、温度、扰动方法（光照电极、电极旋转、气体鼓泡搅拌溶液、顺电极表面向电解池滴加电解液等）对还原态聚苯胺电流响应的影响及光谱分析，首次发现还原态聚苯胺的光电流响应并不是由于其吸收可见或近红外光激发而引起的，光的作作是通过扰动电极表面，促进电解质溶液中溶解的氧气对聚苯胺的氧化，仪器为了维持恒电位将氧化了的聚苯肢再还原而产生光电流响应。
The photoelectrochemistry of leucoemeraldine (Polyaniline in reduced state) was investigated inthis paper. It was found that the photoreduction current response of leucoemeraldine was originated fromphoto-assisted reduction of oxygen dissolved in the electrylyte solutioll but not due to the excited speciesof foe polymer by visable or 11ear infrared light. The effect of light is just the same as that of the electroderotating or of stirring of the electrolyte which accelerates the oxygen dissolved in the electrolyte solution toreact with leucoelncraldiile. Tile potelntiostat is set to reduct the oxidized Polyaniline at collstantPotential, thus producing reductjoll current
出处
《功能高分子学报》
CAS
CSCD
1994年第4期416-420,共5页
Journal of Functional Polymers
关键词
聚苯胺
修饰电极
光电化学
Polyaniline,Photoelectrochemistry,Chemically modified elecnecle, Oxygenredution
