【摘要】 通过软模板在FTO(导电玻璃)上化学浴沉积球状纳米聚苯胺和粉末聚苯胺,将以上两种对电极与无模板化学浴沉积聚苯胺对电极进行对比,并通过场发射扫描电子显微镜(FESEM)测试手段对这三种电极的表观形貌进行表征,对所制备三种电极进行了CV、EIS、Tafel、IV等电化学性能测试。结果表明:三种电极的表观形貌分别为球状结构聚苯胺、平整致密聚苯胺、蠕虫状聚苯胺,其中蠕虫状聚苯胺对电极因粗糙的表面和相对较大的厚度而具有较大的表面积,因此其催化活性位点也较多。而球状聚苯胺对电极则是三种电极中最有序的,规整的表面形貌使电极的导电性增加,加之其球状而产生的较大的表面积而使其光电转换效率在三种电极中最高,光电转换效率达到7.11%。更多还原

【Abstract】 Through the soft template in FTO(glass) on chemical bath deposition of spherical nano polyaniline and polyaniline powder, more than two kinds of electrode and template free chemical bath deposition of polyaniline electrode were compared. The obtained products were characterized by field emission scanning electron microscopy(FESEM). And their electrochemical properties were characterized by CV, EIS, Tafel, IV test. The results show that the three electrode surface morphology was spherical, compact and wormlike structure polyaniline. Wormlike structure polyaniline has large surface area and more catalytic active site due to rough surface and relative large thickness. Among three counter electrodes, spherical structure polyaniline is the most orderly counter electrode which conductivity was increased by surface morphology. Also the photoelectric conversion efficiency reached 7.11 % due to its large surface area and the spherical structure.更多还原