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过氧化聚吡咯-铁氰化钴/普鲁士蓝复合膜的制备及应用 被引量:2

Preparation and Properties of PPyox-Cobalt/Ferric Hexacyanoferrate Film
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摘要 采用循环伏安法在Co2+、Fe3+、K3Fe(CN)6共存的溶液将CoHCF/PB复合膜修饰于过氧化聚吡咯修饰的复合陶瓷碳电极表面(PPyox-CoHCF/PB/CCE)。采用扫描电镜(SEM)方法对修饰电极进行表征,并研究了修饰电极对H2O2的电催化活性。结果表明:PPyox膜的存在更易于Co-HCF/PB在其上的固载、改善了电极表面金属铁氰化物的分散性与修饰电极的电催化活性。在优化的实验条件下,安培法检测H2O2的线性范围为6.0×10-6~4.0×10-3mol.L-1,检出限为3.0×10-6mol.L-1(3 Sb,n=10)。 A CoHCF/PB film was electrodeposited on the surface of PPyox/CCE in a solution containing Co^2+ , Fe^3 + and K3 Fe (CN) 6 using cyclic voltammetry. The morphology of the modified electrode was characterized by scanning electron microscopy (SEM) experiments, and the electrocatalytic performance of the PPyox/CoHCF/PB/CCE modi- fied electrode was investigated. The results showed that the existence of PPyox was favored to the deposition of com- pact and uniform CoHCF/PB film with good adhering. Under the optimum condition, the reduction peak current of the modified electrode was proportional to the concentration of H202 in the range of 6.0 × 10 -6 to 4.0 × 10 -3 mol·L-a with a detection limit of 3.0 × 10-6 mol · L-1 (3 Sb,n = 10).
出处 《延安大学学报(自然科学版)》 2013年第2期86-89,共4页 Journal of Yan'an University:Natural Science Edition
基金 延安市科技攻关项目(2012kg-01)
关键词 铁氰化钴 普鲁士蓝 过氧化聚吡咯 膜修饰电极 电沉积 cobalt hexacyanoferrate prussian blue overoxidized polypyrrole film modified electrode electrodepo-sition
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