OALib Journal期刊
ISSN: 2333-9721
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聚对苯二酚修饰膨胀石墨电极的制备及其性质
, PP. 555-558
Keywords: 聚对苯二酚,膨胀石墨,电化学聚合,化学修饰电极
Abstract:
以膨胀石墨作为基体电极,采用循环伏安(CV)法制备了聚对苯二酚(PHQ)修饰膨胀石墨电极。电化学和扫描电子显微镜(SEM)的分析结果均表明:在0.01mol/L对苯二酚(HQ,pH2.0)中,以0.1mol/LNaCl为支持电解质,可通过CV法成功制备电化学性能良好的PHQ修饰膨胀石墨电极,PHQ的电化学聚合机理随聚合体系pH值的变化而不同。当pH≥12.0时,PHQ不能在膨胀石墨表面发生电化学聚合。PHQ在pH2.0~12.0范围内都具有电化学活性,其随着pH值的增大而降低。
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