新型Pt@Au/HKUST-1/GCE修饰电极的制备及电化学性质研究  

Preparation of Novel Pt@Au/HKUST-1/GCE Modified Electrode and Electrochemistry Properties

作　　者：吴晴晴 WU Qing-qing(Department of Food and Medicine,Weihai Ocean Vocational College,Rongcheng,264300,China)

机构地区：[1]威海海洋职业学院食品与药品系,山东荣成264300

出　　处：《安徽师范大学学报(自然科学版)》2024年第6期533-536,542,共5页Journal of Anhui Normal University(Natural Science)

基　　金：威海市特色果蔬高值加工工程技术研究中心科研开放专项资金项目(GSGC20210008).

摘　　要：采用欠电位沉积技术,构建了基于金铂纳米粒子(Pt@Au)的正八面体铜基金属有机骨架(HKUST-1)复合材料修饰电极。采用扫描电子显微镜(SEM)和X射线能量色散光谱仪(EDS)对复合材料的形貌进行了表征。运用循环伏安法和时间-电流曲线法考察了葡萄糖在Pt@Au/HKUST-1修饰的玻碳电极(GCE)上的电化学行为。实验表明,Pt@Au/HKUST-1/GCE对葡萄糖的氧化具有显著的电催化活性。在最佳实验条件下,检测葡萄糖的线性范围为3.7~320μM,检测限为0.9μM(S/N=3)。该修饰电极有望用于实际样品中葡萄糖的测定。Octahedral copper organic skeleton(HKUST-1)composited with gold and platinum nanoparticles(Pt@Au)were constructed by the underpotential deposition method.The morphology of the composite was characterized by scanning electron microscopy(SEM)and energy dispersive X-ray spectrometer(EDS).The electrochemical behavior of glucose oxidation on Pt@Au/HKUST-1 modified glass carbon electrode(Pt@Au/HKUST-1/GCE)was investigated by cyclic voltammetry(CV)and time-current(i-t)curve methods.The results show that Pt@Au/HKUST-1/GCE has high electrocatalytic activity for the glucose oxidation.Under optimal experimental conditions,the linear range is from 3.7 to 320μM,and the detection limit is 0.9μM(S/N=3).The modified electrode is expected to be applied for the determination of glucose in real samples.

关 键 词：正八面体铜基金属有机骨架(HKUST-1) 金铂纳米粒子 葡萄糖 电化学 

分 类 号：Q657.1[生物学—生物物理学]