CAJ | 학술논문

采用循环伏安法在碳纳米管(CNTs)修饰的玻碳电极上合成聚中性红(PNR)/铁氰化镍(NiHCF)颗粒,并分别采用扫描电镜(SEM)、傅里叶红外(FT-IR)、循环伏安法(CV)和计时安培电流法(CA)等方法考察了复合膜的微观形貌、结构和电化学催化性能.结果表明,复合膜为三维多孔有序的网络状结构,PNR和 NiHCF 以纳米颗粒形式存在并沿 CNTs 均匀分布.PNR/NiHCF/CNTs 复合膜对过氧化氢(H 2 O 2)表现出了优异的电催化性能并显示出了良好的协同效应.该复合膜电极对 H 2 O 2的催化还原电流与其浓度在6．25×10-6~3×10-3之间呈良好的线性关系,线性相关系数 R ＝0．9989,检出限为1×10-7 mol/L,同时具有较高的灵敏度1455．9 mA??L/(mol??cm2),并且复合膜有良好的稳定性和重现性,可实际应用于H 2 O 2传感器.
채용순배복안법재탄납미관(CNTs)수식적파탄전겁상합성취중성홍(PNR)/철청화얼(NiHCF)과립,병분별채용소묘전경(SEM)、부리협홍외(FT-IR)、순배복안법(CV)화계시안배전류법(CA)등방법고찰료복합막적미관형모、결구화전화학최화성능.결과표명,복합막위삼유다공유서적망락상결구,PNR화 NiHCF 이납미과립형식존재병연 CNTs 균균분포.PNR/NiHCF/CNTs 복합막대과양화경(H 2 O 2)표현출료우이적전최화성능병현시출료량호적협동효응.해복합막전겁대 H 2 O 2적최화환원전류여기농도재6．25×10-6~3×10-3지간정량호적선성관계,선성상관계수 R ＝0．9989,검출한위1×10-7 mol/L,동시구유교고적령민도1455．9 mA??L/(mol??cm2),병차복합막유량호적은정성화중현성,가실제응용우H 2 O 2전감기.
Eletroactive composite film with poly(neutral red)/nickel hexacyanoferrate (PNR/NiHCF)on carbon nanotubes (CNTs)modified glassy carbon electrode (GCE)were synthesized by using cyclic voltammetry(CV). The morphologies and structures of the as-prepared PNR/NiHCF/CNTs films were characterized using scan-ning electron microscopy(SEM)and Fourier transform infrared spectroscopy(FT-IR),respectively.SEM images showed the three-dimensional porous network composite films with uniform distribution of both PNR and NiH-CF nanoparticles along the CNTs.The composite films were applied for H 2 O 2 detection and showed synergy and excellent electrocatalytic activity.The linear range for the detection of H 2 O 2 was 6.25 × 10 -6 -3 × 10 -3 mol/L with a high sensitivity of 1 455.9 mA??L/(mol??cm2 )and a rapid response (less than 3 s).The detection limit for H 2 O 2 was as low as 1×10 -7 mol/L (S/N =3).The hybrid film prepared had good stability and reproduc-ibility in the detection of H 2 O 2 ,and should be useful in practical H 2 O 2 sensors.