作者：刘超
作者单位：内蒙古化工职业学院, 内蒙古 呼和浩特 010070
关键词：铁氰化铈;还原石墨烯;水合肼;电催化
摘要：
通过电沉积的方法，在玻碳电极表面上沉积铁氰化铈/石墨烯（CeHCF/RGO）纳米复合材料。用扫描电子显微镜（SEM）对其形貌进行表征，发现其粒径大小均一。用循环伏安法（CV）研究水合肼在不同电极的电化学行为。结果表明，与RGO修饰电极（RGO/GCE）和铁氰化铈修饰电极（CeHCF/GCE）相比，铁氰化铈/石墨烯复合物修饰电极对水合肼具有更好的电催化氧化性能。在一定条件下，它对水合肼响应的线性范围为2.8710-7～8.5610-4 mol/L，检出限为8.510-8 mol/L。可用于水合肼的电化学传感检测。
Preparation of CeHCF/RGO composite and its application in electrochemical determination of hydrazine
LIU Chao
Inner Mongolia Vocational College of Chemical Engineering, Hohhot 010070, Chin
Abstract: The CeHCF/RGO composite have been modified on the glassy carbon electrode surface by the method of electrodeposition. The morphology of the CeHCF/RGO composite have been characterized by scanning electron microscope(SEM). The particle size was uniform. The electrochemical behavior of hydrazine on different electrode was studied by cyclic voltammetry (CV). The results showed that the electrocatalytic activity of CeHCF/RGO/GCE to hydrazine was better than CeHCF/GCE. The resulted electrochemic sensor exhibited good current response to hydrazine with a wide linear range extended from 2.87×10-7 to 8.56×10-4 mol/L, and the detection limit was 8.5×10-8 mol/L(S/N=3), which can be applied for determination of hydrazine.
Keywords: cerium hexacyanoferrate;reducted graphene;hydrazine;electrocatalysis
2016, 42(12): 49-52 收稿日期: 2016-05-27;收到修改稿日期: 2016-07-03
基金项目:
作者简介: 刘超(1982-),女,内蒙古呼和浩特市人,讲师,硕士,研究方向为工业分析技术、环境监测。
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