【摘要】 本研究利用石墨烯(rGO)与3,4-乙烯二氧噻吩(EDOT)单体芳香环之间的π-π~*相互作用和氢键作用,采用脉冲恒电位一步法制备了聚3,4-乙烯二氧噻吩石墨烯(PEDOT-r GO)复合膜,将纳米镍(NiNPs)电沉积在此复合膜(PEDOT-r GO)表面,制备了Ni NPs/PEDOT-r GO修饰玻碳电极(Ni NPs/PEDOT-r GO/GCE),研究了此修饰电极对葡萄糖的电催化氧化性能。实验结果表明,此Ni NPs/PEDOT-r GO/GCE可以作为无酶传感器实现对葡萄糖的检测。本方法稳定性高,选择性好,线性范围宽(2μmol/L~58 mmol/L),检出限低至0.7μmol/L,可以用于对葡萄糖的快速、灵敏检测。更多还原

【Abstract】 The Poly( 3,4-ethylenedioxythiophene) graphene( PEDOT-r GO) composite film was prepared by one step pulse potentiostatic method,based on the π-π~* interaction and the polymerization reaction of hydrogen bond between the graphene( r GO) and the aromatic ring of 3,4-ethylenedioxythiophene( EDOT)monomer. Then the nickel nanoparticles( Ni NPs) were electrodeposited on composite film to obtain a composite film-modified glassy carbon electrode( Ni NPs/PEDOT-r GO/GCE). The catalytic performance of Ni NPs/PEDOT-r GO/GCE towards the oxidation of glucose was studied by electrochemical method. The experimental results showed that the Ni NPs/PEDOT-r GO/GCE could be used as a nonenzyematic sensor for detection of glucose. This method had high stability,good selectivity,wide linear range( 2 μmol/L-58 mmol/L) and low detection limit( 0.7 μmol/L),realizing the rapid and sensitive detection of glucose.更多还原